Single Turbo RX-7's Questions about all aspects of single turbo setups.

separating fiction from reality... a couple of days on the DYNO

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Old 03-26-13, 07:16 AM
  #1026  
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Did you manage to get back to the dyno yet Howard?

Originally Posted by Howard Coleman CPR
i will be back on the dyno March 19 or 20. i am waiting on a couple of items.
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Old 03-26-13, 10:18 AM
  #1027  
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Originally Posted by bdarepat
Did you manage to get back to the dyno yet Howard?
I wouldn't be surprised if he's busy trying to figure out how/why his current engine blew...
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Old 03-27-13, 12:29 PM
  #1028  
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Originally Posted by fendamonky
I wouldn't be surprised if he's busy trying to figure out how/why his current engine blew...
likely true. go where no man has gone before and disappointment surely awaits.
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Old 03-28-13, 10:13 AM
  #1029  
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Originally Posted by Clubuser
likely true. go where no man has gone before and disappointment surely awaits.
Blowing up engines in this case isn't disappointment. Some of the best advice I've received from my dad is "To double your success, quadruple your failure rate".

So long as you're learning, you're progressing.

Looking forward to the results Howard!
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Old 03-28-13, 02:19 PM
  #1030  
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Originally Posted by Clubuser
likely true. go where no man has gone before and disappointment surely awaits.
Except that he's not blazing any paths, he's not pioneering anything. The only way an intelligent person will learn ANYTHING from this thread is by reading it, noting his suggestions, and specifically NOT following them

You know it's funny.. People have been banned/edited for questioning the wisdom of his decisions (in public), then further down the line he contacts those same people, that were banned for calling him out, and asks them for advice.

Originally Posted by OneRotor
Blowing up engines in this case isn't disappointment. Some of the best advice I've received from my dad is "To double your success, quadruple your failure rate".

So long as you're learning, you're progressing.

Looking forward to the results Howard!
The key there is to NOT fail the same way over and over again. Howard blew all his motors because he kept insisting on over-engineering a 100% methanol setup. I'm fairly certain there are some SAE papers out there which kinda suggest that using 100% meth in small doses is a no-no, and leads to blown engines.

Blaming broken engines on sup-zero temperatures and freezing injector diffusers is bogus at best. Claiming that increased wind speed lowers ambient temperatures is pure ignorance.

But hey, if you believe in his abilities (proven to NOT have a running car for years on end) than by all means, pay him to use your car for his little experiments.
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Old 03-28-13, 03:09 PM
  #1031  
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Ignorance^ ....I'm sure there has got to be something more productive for you to do than try to make someone with much more knowledge and experience in the matter look bad. You really should be more positive...you'll live a much better life. Members on here have learned a lot from this thread...I myself included. You should worry more about yourself and stop trying to tear down others, I tell all my 9th & 10th graders the same thing, usually around senior year they all start to come around, i'm assuming you think your posts add useful info? Just saying... everytime I see a post from you I cringe because it's useless, negative, redundant garbage.
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Old 03-28-13, 03:43 PM
  #1032  
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Do you also tell your 9th and 10th graders that the faster the wind blows, the more the temperature around them is going to drop???

And that's cute that you call my posts redundant.. when that is the perfect word to describe most of HC's "technical" posts
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Old 03-28-13, 03:58 PM
  #1033  
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Quote:
Originally Posted by Mazdabater (referring to YZF)
Arguing with a Christian is like playing chess with a pigeon.

You could be the greatest player in the world, but the pigeon will still knock over all the pieces, **** on the board and strut around triumphantly.


Ironic this is your sig^....I fixed it for you though......

Quote:
Originally Posted by Mazdabater (referring to YZF)
Arguing with YOU is like playing chess with a pigeon.

You could be the greatest player in the world, but the pigeon will still knock over all the pieces, **** on the board and strut around triumphantly.
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Old 03-28-13, 04:16 PM
  #1034  
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I am just hoping Howard makes it down to our Texas Mile before I die of old age.
Some of us Houston Texans have volunteered to be his mechanics when he comes down.
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Old 03-28-13, 04:17 PM
  #1035  
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You truly are MUCH too witty for me to banter with....

I'm ashamed to admit that I almost thought you were a school teacher based off your previous post. I see now, based on how quickly you jump to personal insults and their level of sophistication, that those 9th and 10th graders you referenced are more likely your peers, rather than your pupils.


But I guess you've had a good deal of practice convincing people that you've accomplished things which were actually done by others. What with your build thread and all...
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Old 03-28-13, 04:19 PM
  #1036  
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Originally Posted by cewrx7r1
Some of us Houston Texans have volunteered to be his mechanics when he comes down.
His car would probably run it's best ever if that were to happen
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Old 03-28-13, 06:26 PM
  #1037  
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Originally Posted by cewrx7r1
I am just hoping Howard makes it down to our Texas Mile before I die of old age.
Some of us Houston Texans have volunteered to be his mechanics when he comes down.
that would be cool, i hope he does make it down!
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Old 04-01-13, 10:59 AM
  #1038  
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The people who criticize in this thread are the ones that are disappointed that they're not getting free information from the money and time that somebody else is spending on their own car. If you don't like it, go do your own thing, then have the same nerve to post up your results forthrightly; either with positive or negative results. Ever notice how the people who criticize on the Internet are always perfect?

B
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Old 04-01-13, 01:00 PM
  #1039  
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Originally Posted by bdc
the people who criticize in this thread are the ones that are disappointed that they're not getting free information from the money and time that somebody else is spending on their own car. If you don't like it, go do your own thing, then have the same nerve to post up your results forthrightly; either with positive or negative results. Ever notice how the people who criticize on the internet are always perfect?

B
+1
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Old 04-01-13, 05:19 PM
  #1040  
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Originally Posted by BDC
The people who criticize in this thread are the ones that are disappointed that they're not getting free information from the money and time that somebody else is spending on their own car. If you don't like it, go do your own thing, then have the same nerve to post up your results forthrightly; either with positive or negative results. Ever notice how the people who criticize on the Internet are always perfect?

B
Free information is not necessarily good information. One thing I've learned through all the research I've done in the past decade is that 9 times out of 10 the source of the information is more important than the information itself. For example: I would have a VERY hard time taking your advice seriously, Brian, about quality engine mounts because I know that you have publicly stated that you think wooden 2x4's cut to size would be acceptable engine mounts.

I am hardly upset by Howard's lack of progress because I know that he has blown up several engines by injecting pure methanol into them (kinda like you swore by) which resulted in their unnecessary failure.

If somebody like Turblown, Karack (Rotary Evolution), TitaniumTT, or Rice Racing were to post up information on a similar subject than I would accept their information as fact, because they are reliable sources of information. HC, on the other hand has a record of failures, one after another, and when he doesn't outright destroy engines, he makes substandard power.

"Information" without trustworthy credentials is more damaging than good, ESPECIALLY when it is absorbed by people who don't know any better and just blindly accept them as fact.
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Old 04-01-13, 07:13 PM
  #1041  
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Originally Posted by fendamonky
Free information is not necessarily good information. One thing I've learned through all the research I've done in the past decade is that 9 times out of 10 the source of the information is more important than the information itself. For example: I would have a VERY hard time taking your advice seriously, Brian, about quality engine mounts because I know that you have publicly stated that you think wooden 2x4's cut to size would be acceptable engine mounts.

I am hardly upset by Howard's lack of progress because I know that he has blown up several engines by injecting pure methanol into them (kinda like you swore by) which resulted in their unnecessary failure.

If somebody like Turblown, Karack (Rotary Evolution), TitaniumTT, or Rice Racing were to post up information on a similar subject than I would accept their information as fact, because they are reliable sources of information. HC, on the other hand has a record of failures, one after another, and when he doesn't outright destroy engines, he makes substandard power.

"Information" without trustworthy credentials is more damaging than good, ESPECIALLY when it is absorbed by people who don't know any better and just blindly accept them as fact.
no worries.. hopes you checked your references well..
cause some on that list i have seen contradict themselves several times over to stay in charge of all the sheep .. two of them are no longer on this forum because they resort to shouting down the dissenters when the holes get picked out of the story
.. HC has presented both ups and downs.. sees the slow log rate of his ecu will never watchdog correctly,, swaps to a faster one with spades spare..
sees that straight meth may be counter productive in det control.. saw that in the historical argument and in his own results.. and made a change.. and has kept us all in the loop ....

your contribution is??
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Old 04-02-13, 12:35 PM
  #1042  
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^ Absolutely agree..... that guy is just mad at everything, seems to have no real reason to hate howard's accomplishments....or the words for that matter... and uses the forum as a stress relief? I don't know.... but I'd just rather hit the gym
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Old 04-02-13, 04:28 PM
  #1043  
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Originally Posted by bumpstart
no worries.. hopes you checked your references well..
cause some on that list i have seen contradict themselves several times over to stay in charge of all the sheep .. two of them are no longer on this forum because they resort to shouting down the dissenters when the holes get picked out of the story
And it is somehow better for a person to abuse their moderator powers edit, delete, or modify posts that question the legitimacy of their claims?

I thought that was a peer review, and you need that peer review to actually progress sometimes.

Attempting to maintain the Moral Upper Hand while that takes place is extremely hypocritical. Now, I don't now if it's Howard himself who had gone back and edited/deleted pages of posts in this thread, or another moderator. Either way that sort of censorship ONLY does Howard a disservice because it encourages him to actually believe that he is unquestionably correct.

Originally Posted by bumpstart
.. sees the slow log rate of his ecu will never watchdog correctly,, swaps to a faster one with spades spare..
It's funny that you should mention this, since he e-mailed the banned members that you referenced above and asked them what to do.

Don't get me wrong... Thumbs up to Howard for finally getting rid of the PFC. The Link system he went with is certainly leaps and bounds beyond the Apexi, but it's also nowhere near as great as he (and you) make it out to be. I considered using it, momentarily, but quickly decided otherwise. If you're gunna shell out the money for a new ECU, you might as well get a really good one (M84, PS2000, S6, etc).

It's funny that you're defending HC by criticizing people who can't come here to defend themselves though, since Howard contacted those same sources of mine to ask what he should do...

Originally Posted by bumpstart
sees that straight meth may be counter productive in det control.. saw that in the historical argument and in his own results.. and made a change..
Except that he was informed YEARS ago that that was where he was screwing up, and those posts were edited or deleted, then Howard came up with some off the wall excuses for why his engine blew.

Originally Posted by bumpstart
your contribution is??
My contributions are that of a simple owner who's had their fair share of experience.

I never ONCE had a problem with HC's "contributions" when he presented them humbly, as from one owner to another. Once he began sharing his (misguided) exploits from the pedestal of a "professional" I began to question. It's unfortunate that any questions here seem SOOO dangerous!

I am not a tuner, I have never claimed to be and I will NOT tell people how to tune their cars. Neither is Howard, yet he's given tuning advice on many occasions.

I am not an engine builder, I have never claimed to be. Howard calls himself a professional engine builder yet he tapes up is ports because he's afraid to let anybody see what he does (seems odd, no? it's not like he's discovered something new, lol).

Does it make sense to you that I have nothing against Howard, as a person, yet I'll question the persona he's assumed, and the infallible pedestal he's been placed on. If you're going to assume that sort of identity, and NOT do a huge disservice to the community, then you better be a ******* genius. As far as I know Howard isn't educated as a mechanical engineer, he doesn't appear to have a strong grasp of hydrodynamics or even the basic rules of nature (he claimed that increases in wind speed will decrease the ambient temperature and didn't appear to see anything wrong with that).

I have nothing against the man, but seriously question the legitimacy of his forum persona.

Originally Posted by mannykiller


^ Absolutely agree..... that guy is just mad at everything, seems to have no real reason to hate howard's accomplishments....or the words for that matter... and uses the forum as a stress relief? I don't know.... but I'd just rather hit the gym
Have you ever heard of the term "projecting" when used in psychology? I'm seeing a LOT of that from you.

Please let me assure you, I'm not angry at anybody, nor have I posted here in anger or while mad. You seem to always come in and initiate the insults, historically you've pushed it to the point of having this thread shut down and getting entire pages deleted. Not to mention the PMs that you like to send in conjunction with the personal attacks.
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Old 04-02-13, 04:28 PM
  #1044  
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Originally Posted by fendamonky
If somebody like Turblown, Karack (Rotary Evolution), TitaniumTT, or Rice Racing were to post up information on a similar subject than I would accept their information as fact, because they are reliable sources of information. HC, on the other hand has a record of failures, one after another, and when he doesn't outright destroy engines, he makes substandard power.

"Information" without trustworthy credentials is more damaging than good, ESPECIALLY when it is absorbed by people who don't know any better and just blindly accept them as fact.
Lol, you're joking right? I'm not here to defend hc, but your sources of "correct" information are hardly infallable. Turblown can't make an engine mount (https://www.rx7club.com/showthread.php?goto=newpost&t=1027676), karack has an ego so large he will post up misinformation when he straight up does not know the answer (https://www.rx7club.com/showthread.php?t=1028779), and rice racing... If you want to talk about engine failures then it would be best to leave him out of the discussion (http://www.sarotors.org/forum/showthread.php?t=883)

So what makes you hostile towards hc? At the end of the day, most information we take from the forums is likely bullshit - it's up to you to decide what is right and what isn't and to bolster anything taken from others with your own experience.

Perhaps you should grow up and start figuring stuff out on your own rather than taking anyone's word as fact. As it stands, all your "knowledge" is regurgitation; why you think that gives you reason to look down on others (bdc, hc) is beyond me.
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Old 04-02-13, 04:53 PM
  #1045  
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Originally Posted by fendamonky

Have you ever heard of the term "projecting" when used in psychology? I'm seeing a LOT of that from you.

Please let me assure you, I'm not angry at anybody, nor have I posted here in anger or while mad. You seem to always come in and initiate the insults, historically you've pushed it to the point of having this thread shut down and getting entire pages deleted. Not to mention the PMs that you like to send in conjunction with the personal attacks.

No i've never heard of that...because honestly ......I just don't give a ****. I replied to your pms that you initiated... until I realized I was talking to a brick wall. Then I stopped.
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Old 04-02-13, 04:59 PM
  #1046  
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So whats happens to the test?

We are a little bit out of toppic
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Old 04-02-13, 05:14 PM
  #1047  
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Originally Posted by rexset
So whats happens to the test?

We are a little bit out of toppic
It happens, every six months or so this thread will surface again with either the question or progress, or notification of additional failure, and useless drama results.

Some members will come in and question/criticize, then others (typically Mannykiller yells the loudest) will come in and protest the questions.

In a few days a mod will likely come through and delete this ENTIRE conversation, leaving people to just wonder when the next brilliant update will be revealed.
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Old 04-03-13, 02:49 PM
  #1048  
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"Thumbs up to Howard for finally getting rid of the PFC"

i certainly do appreciate your thumbs up on ditching the Power FC. your credentials, when it comes to knowing what you are talking about w re to ECUs, seem to be a bit thin.

based on...

"The Link system he went with is certainly leaps and bounds beyond the Apexi, but it's also nowhere near as great as he (and you) make it out to be. I considered using it, momentarily, but quickly decided otherwise. If you're gunna shell out the money for a new ECU, you might as well get a really good one (M84, PS2000, S6, etc)."

really?

just so you know, i run a ViPEC V88.

my FD is built dual purpose. street and track. the primary track objective is 200 at the Texas Mile. the engine must make 600 hp thru 5 gears and pull approx 8000 thru the lights, in fifth.

that's 30 seconds at 600. heat is cumulative. a lot of things have to be just right. the way to get them right is thru management. for my specialized situation i needed more than the PFC.

for the majority of FD owners not planning to make 600 hp for 30 seconds the Power FC is an excellent choice. i bought the 15th Power FC that was imported into the USA in 99. i still consider it, when combined w a Datalogit, to be an awesome product that will totally fulfill the needs of most FD owners.

do newer ECUs provide more features? sure. that doesn't mean the PFC isn't still wonderful.

so you momentarily considered the V88 but quickly decided otherwise as you wanted to get a “really” good one...

maybe you should have not so momentarily, not so quickly, considered the options.

i consider knock to be a very important rotary metric. unlike a piston engine which is generally immune to significant knock, the rotary breaks. knock is progressive and if the tuning process is properly done knock will eventually set the tune.

when i carefully considered the M84 i found that there was no knock feature.

none.

BTW, the lowly Power FC/Datalogit does an excellent job logging knock.

the M84 doesn't.

i looked carefully at the Haltec PS2000.

no knock. (they do sell an external Knock Box)

then i looked at the ViPEC V88, you know, the one you momentarily considered, but (quickly) decided against as you wanted a "really" good one..

the V88 has an internal knock module.

totally definable as to what knock is. you set the Hz so it tunes directly into the proper frequency. once you have defined the Hz, you define the limits. then you tell the V88 what you want to do when knock is encountered.

ignition retard? sure
fuel action? Sure
boost response? of course.

all of this for the front and rear rotors separately if you wish.

i am using two new style Bosch RX8 knock sensors which work perfectly w the V88.

for me not having knock, both static and re-active, when i am shelling out serious money was a

deal breaker.

but that's just me.

i was looking to finally (since 04) find an ECU that would run my AI properly. that was an area that my PFC just couldn't quite deliver and was the single most important item that led me in another direction. my AI project is to determine if pre-turbo is advantageous. there have been some comparos but they were nozzle affairs. what's needed is tunable delivery. fuel injectors deliver. the V88 has a separate section for AI and runs injectors. we will find out whether pre-turbo delivers.

i could go on for pages re the V88 but thankfully won't. see more in the Engine Mgt Section if you wish.

the other ECUs are all fine. i will say that i rate the Haltec PS2000 above the Motec M84 based on a much greater array of features.

both the V88 and the PS2000 have traction control, anti-lag and flat shifting. the Motec does not offer them in the standard version. Motec's more expensive versions are the gold standard but gold is around $1500 an ounce so bring a lot of cash.

Executive summary:

All of the above ECUs are excellent. Each has a fit and will work when properly mated w buyer needs. The Power FC/Datalogit remains a great fit for many FD owners.

I have been quite busy finishing my build and am doing a bit of street tweaking. I expect to be on the dyno in a couple of weeks.

A few additions:

Titanium stud kit. Most engines I take apart have modest evidence of inter-plate movement. I looked over the many options available in the market. Some require drilling out the holes for larger bolts. I don’t like the idea of reducing the boss around the bolthead. I don’t like the idea of drilling 70 holes… some kits just offer a small amount of uprated bolts probably around the higher stress areas. I like uniformity and want all my bolts similar. After doing my research I called my go to 1000+hp guy and asked him.

He runs Rotary-Works titanium stud kit, get this… the street version. No drilling. No tapping. He has run the same kit for over 2 years. The studs are 10.5 mm up from 9.5 so they have 22% more cross-sectional area. The other plus is titanium expands 43% less than steel. It does not take much expansion w a 12 inch bolt to add .001.

This is a critical area. Mazda specifies a rotor housing needs to have .0024 or less width variance. More than .0024 and you lose a water seal. I see 20% of my incoming motors not being within spec… something to consider when you are buying used rotor housings.

My second change is to Goopy 2 mm oversized apex seals. Most good condition rotaries have .004 seal to groove clearance around the corner seal and .003 in the middle. New mazda rotors and seals are about .0015. Goopy offers a 2 mm that is an additional .004 wide. Grab a couple of precision files and you are looking at .0015 as far as the eye can see…

better sealing between rotor faces can’t be all bad. A great idea from Goopy and one other apex seal companies should follow. Sure beats clunky 3mm seals.

I love Kenne Bell.

I have used their marvelous Boost A Pump since 2004. Working the pump harder only under boost is a winner.

Since I switched to inductive ignition (from CDI) and I am adding water to my meth and being in agreement w RiceRacing as to ignition ultimately being the limiting hp factor… I wanted to soup up my Mercury Marine IGN-1A coils…

Enter: Kenne Bell Boost A Spark (BAS). Again like the BAP, the BAS works only in boost. it is user adjustable as to the amount of volts you wish to lay on the coils. No more worry about spark gaps. I guess it is similar in basic concept to the Twin Spark except it works only in boost so it is kinder to your coils, wires and plugs and it is adj as to volt gain. Lance says the coils are happy at 16 volts.

Another area I am initially exploring is the newer Borg Warner Engineered For Racing turbo line. (EFR). A key consideration w re to the rotary is the Titanium compound lightweight turbine wheel. While it is light, large and well designed, the consideration is EGT.

The wheel may be good only to 1650F/900C. this may be an issue for the rotary. when I ran methanol my EGTs would have been fine at 1550. now that i am 50/50 W/M I am going to be spending some serious time looking at the EGT situation w the EFR 9180 in mind.

I will be running E85 at the Texas Mile so it probably won’t be an issue but it could be on gas.

////////////"I will be running E85 at the Texas Mile"

this is a mis-statement on my part...

Beyond Redline's dyno is capable of very close to 200 miles per hour. assuming we get through the turbo project we will run the car at or near 200 on pump gas and W/M. if the motor can do approx 20 seconds in fifth to redline on gas, gas it will be. if it takes alcohol to get it done it will be alcohol. i have no idea what it will take to do the 5 gears at 600 in 30 seconds. i think it will just have to be done and logged to know./////////////////

More to come,

howard

Last edited by Howard Coleman; 04-05-13 at 08:23 PM.
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Old 04-03-13, 05:16 PM
  #1049  
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Originally Posted by ninesixtwo
and NRS Apex Seals... If you want to talk about engine failures then it would be best to not use them
you are 100% right! Howard would agree I think he and many other credible people no longer endorse them nor use them, unless you love having every part of your motor destroyed like howard's, ernie's, enzo's, crispeed's............. the list is top shelf and endless, and none of these inc the one you try to defame are bad people!, it is 100% a product problem!, so go wash your mouth out and lay blame where it belongs with NRS solely and only
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Old 04-03-13, 05:35 PM
  #1050  
Banned. I got OWNED!!!
 
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Originally Posted by ninesixtwo
why you think that gives you reason to look down on others (bdc, hc) is beyond me.
um cause both have not achieved anything (failures aside) yet
the ones you choose to defame (product failures aside) have all achieved exponentially more than these two combined, in fact I would say that the people you list have forgotten more than hc,bdc would ever know ......... there is your answer as to why people look down on this forum and its own self professed icons of 'knowledge'
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