spyfish007

RICE: I just can't believe you waited this long to upgrade it.

fdracer

Rice what did you end up doing? Do you have the 2 hi6's firing your two lx92 leading coils and have no amp on the trailing? Or does each hi6 fire one set of L&T coils since you run no split?

RICE RACING

spyfish007, yeah I know ! The thing was it made excellent power before but it was a compromise...I had a small misfire everytime I ran race plugs untill the engine was fully hot and I realy did not realize that the CDI would make so much difference. I had fitted them (MSD 6A) to a few other cars I had preppared and thought I should add it to my road car, I am very glad I did. After reading all the different opinions on CDI v's stock I got a bit confused as to wether I should spend the money as the car functioned OK before, It is far better now, amazingly better...It obviously responded well to my level of modifications and I noticed a huge overall improvement.

The set up I am running is 2 Hi6 CDI units (one for each leading plug) 2 LX92 coils (again one for each leading plug) The CD units are triggered by the leading ignitor (see trailing below for part no.

2 HEC716 Bosch ignition coils (one for each trailing plug) and these are triggered by a Bosch Transistor "Ignitor" part no 1 227 022 008.

I bought the CDI units from www.jegs.com
as they have a deal packing a free coil with each CDI, the other parts you can buy from any car parts store, oh and the ignition leads I got made up for $25 Aus ....Mounted the coils right near the engine on the chassis rail. I will develope some pics and post them once I finish my roll of film (no digital camera yet)

AJC13B

Peter,

So there was a marked difference in power or overall?

RICE RACING

I will do a data log in 3rd gear from 1700rpm to 8500rpm and post the results, hope to get around to doing this in the next week as I need my laptop and it is not with me . I always test on the same road (same stretch to within a meter!) and with the same weight so I will post up the differences, it feels to be in the region of 10% or more power in the lower revs, as noticed by the wheel spin happening at lower rpm (much lower) I would say in the higher revs the difference would not be more than 5% extra power but a data log will prove what difference there actually is in terms of power.

I am happy that I can run the colder plugs with no worries, last night it was a cool 6 deg C when I tested in 2nd gear and had no misfire at all with B10EGV's on first throttle aplication .... I got a set of B11EGV's and am running them with thin copper washers to give me even more compression (makes them more like a B12 or 13 with the thinner washers), this will make the plug run realy "cold" as it transfers more heat, so I will test how good my new CDI realy is

sub-zero

How about this simple setup I just bought from power axel? www.ignitionsolutions.com Check out the KDRotary site. I hope it works!

RICE RACING

OK ! good news...my car has more power

Bad news is that I have wheel spin in third gear on a dead smooth road ! soon as the revs hit 6000rpm it spins the tires straight to 7500 (by the time I can catch it !) This is with the B11EGV's and the water injection turned on at a rate of 270ml/min and running 17psi boost, ambient temp was 13 deg C during the test.

Previously with no CDI I got a cold misfire on B10EGV's while running water injection, no such problem now with new setup.

I am disaponted that I cannot get a meaning full data log now because of the wheel spin which previously was not there. I am running 205/50/15 tires, race LSD 3.909 ratio and T2 box. Wheels start spinning in third from 120kph through to around 150kph at which point it seems to regain traction, but it costs me alot of time in lost acceleration. Time for traction control

I am happy with the modification done to the ignition, maily cause I can run the car VERY safe now and not worry about noticable and undetactable misfires that cost power.

After this experience I will use CDI or suggest it to anyone who can afford it for car like ours that are highly modified, it was worth every cent.

Now traction control

RICE RACING

Ok, another update

I ran over 1.5bar / 22psi boost today !!!!!! On pump gas with Water Injection no detonation and no misfire. The highest previously run was 19psi.

The car is a ******* animal It performs in third gear now like it used to in second ! With a full tank of fuel and my GF in the passanger seat the rear tires "light up" once the revs hit near 6000rpm and at any boost above 17psi ...... To say I am happy is an understatement to say the least !

I had an "in gear" rolling start race with a highly modded 200SX Nissan today we both were dead even crusing at around 70kph, I left my car in thrid (due to the abundance of new found power ! at lower revs) and with my engine revs about 3500rpm I nailed it, from what I could hear the Nissan was in second ...... I pulled away about a car length up to around 5000rpm (the nissan changed into third) then I pulled away another car length to 6000rpm at which time (122+kph or 76mph) my revs shot straight to the 8500rpm limiter and I held a power slide up the road for about 25 meters leaving two black lines up the road, oh and the angle of the car was about 10 degrees (with the rear drifting towards the other cars lane!!!) Once he saw this he did not bother with 4th as I had pulled out such a margin while starting from low revs.

We pulled up at the next lights and just smiled at each other, we both gave each other the thumbs up signal and procedded on our way home, I am sure he was explaing to his GF as I was to mine that what we had done was not against the law and was in the name of "good fun". BLOODY GOOD FUN

On a side note, I am positive that the better burning of the CDI has caused my boost to go up as I did not intentionaly want to run over 20psi today, I set the WG to be at 1.3 bar (18.85psi) and the bloody thing went to over 257kpa (absolute "spike") on the data logger and around 22 psi on my autometer gauge. Be carefull if you decide to install this as I think that this is infact what will happen, funny cause when I run WI the boost is usually lower by up to 0.5psi as well. I am real happy in case you did not notice !

relvinnian

...That's about all I can about that!



Very Pete. What do you think the beast is making @ that PR? What kind of tires do you run out back, lol?

AJC13B

Could you PM or ICQ me the price on the stuff you got Peter?

cewrx7r1

iTrader: (2)

What's up with you running these baby stroller tires?
No wonder you can't get any traction!

Anthony Rodrigues

Rice,
What ignition leads are you running and have you had any problems with RFI? I have used the MSD system and still cannot make up my mind whether I like them as I have had ignition reliability problems with this brand. We are currently testing MSD vs Jacobs vs Crane, while we would be happy to share the results some answers on their longevity would be appreciated, from the users on this forum.
Thanks in advance-Anthony

RX7SV

Now that is a sweet story.
25m power slides at over 120km/h.

RICE RACING

Anthony, I ordered 20cm long RFI suppressed Top Gun leads...no interference with the ECU or CDI. The quality of the leads sucks **** though, The resistance was 1300ohm for 2 leads and 800ohms for the other two !

The boots slide of as well ! I ordered some Eagle leads through my work, and they have a resistance of 100ohms ! and are much much better made...they are the same ones used on many V8 supercars running (Gary Rodgers Motorsport cars) Motec and are guaranteed to have RFI supression.

In terms of performance I am not sure if I will see a difference as the thing goes so well now, but I was VERY disapointed with the quality of the top gun leads, I should get the new ones tommorrow.

RICE RACING

I tried 225 wide semi slick D98J road race tires last night, and they are no better ..... I think I need to do AJC13B's trick of deflating the tire .

At the moment here in Australia where I live it is very cold in the evening, last night was 0 deg C and the tire and the road is very cold so this for sure not helping. But yeah it's got alot of power, I think street tires are just fucked in transmiting power no matter how wide. The 200SX I raced yesterday had 245 or 265 wide street tires and he was spinning bad in second and he had less power than me.

shinjuku

Hey Peter you crazy *****

any chance of a ride...

RICE RACING

sure

crispeed

Hey Peter!
Now that you're running with a stronger spark try using some NGK115's instead of the EV's! You might even like the results especially in the high rpm regions!

Anthony!
I have personaly got the best reliability with the MSD 6 series ignition boxes using the second gen ignition coils on street cars. The new DIS and digital boxes from MSD are stronger in power output but I've seen too many go back for warranty work especially the multi-channel ones.
Crane also got a great product and their 6 series do out perform the analog 6A's from MSD! I did have reliability problems with the Crane boxes and coils although I think they have improved alot on the design. Have not done any testing lately with any of their products.
I have personaly never used any products from Jacobs!

crispeed
87 Rx-7 TII
9.204@150.47mph
2600lbs
un-tubbed

Felix Wankel

Hey Chris, I have an MSD 6A on my first gen. I was thinking of putting it on the leading side of my TII. It has 3'' exhaust, TID, fuel pump, injectors, boost controller, bov, etc. Plus Bryan built me a hybrid turbo with an H3 compressor, I have it running at 14 psi.

I don't really have any ignition problems that I'm aware of. You think it'd be benificial to put it on my TII? Its a 20 minute ride out to where the FB is stored

-Anthony (another one )

crispeed

The stock igniton have been proven to work well in moderate to high power outputs with no problems. I personly believe there are some benefits to be gained once you go above 350RWHP especially in the 400 plus region. As Peter mention above one of those benefits would be the use of colder spark plugs with less chance of misfire and fouling!

crispeed
87 Rx-7 TII
9.204@150.47mph
2600lbs
un-tubbed

Felix Wankel

Eh, I'm still in the moderate range. I might just do it anyway since I have to go out there where the car is to get a headlight motor for someone. Thanks

Anthony Rodrigues

Thank you Chris and Peter:
I asked about the leads because I have found the same thing with that brand. NGK or Magnacore have beengood to me lately. Thanks Chris for your input it saves me $$ and time when we receive reliable input. I second your advice on the plugs but also add a warning to richen your mixtures before you try the plugs as I gave the same advice to someone once and cost them an engine. The 115's can truly make an efficiency difference in the top end.
I have always wondered about the compatability of using a CDI box with a HEI(dwell type) coil as they have totally differrent resistance and work on different principles. MSD recommended it but I cant get my head around it. Have you tried to use CDI coils on the same MSD and compared the results?
Thanks in advance-Anthony

fdracer

How good are the stock ignitors and coils for the fd? I was thinking of doing the 2 crane hi6s and coils for the leading like rice racing, but I want to leave the trailing coils and both ignitors stock. Would there be a big disadvantage in doing this?

ASE_Joe

thanks for shopping in Ohio Rice!! We appreciate the business

AJC13B

Put them down to 20psi and you shouldn't have issues

If you do, time to move over to the #@rs mate