01Racing

If you guys can get the car the engine is in to Scarborogh I will see if my engine/tuner friend will do a basic set up on the carb for you. I know he has a brand new 48 there and he might sell it too.

Redshft

iTrader: (1)

Thanks! Might be a good excuse to haul up to Ontario for an event...

23Racer

Man, if you tow up to Ontario for an event I will make sure my car is back out for that event as well. Just think, 3 white FC's all running in GTB with very different ways of going fast. It would be a great race and I am getting tingly thinking about it.

I know it is very premature to discuss this, but if I were you I would look at doing the BEMC event in September. There is a full selection of Regional Sprints, the 3 Hour enduro where we could share support crews/equipment and a CCTCC race where I will run the Cougar as well. A number of guys from the Maritimes run that 3 Hour and it is a great way to share a car and share the experience. We could race in the 3 20 minute Sprints and the 3 Hour Indian Summer Trophy race. 4+ Hours of track time in one weekend. Our Haligonian friends would have all the support they could handle and we could work it to be another RX7 weekend with free lapping at lunch again.

Heck, we could get Joe out to provide at track engine building support, LOL.

Eric

PinkRacer

Sounds like fun Eric. We'll have to see how the summer pans out (just bought a new house to go along with all of this racing craziness!). Although, I don't know about that GTB class thing for me. haha If it's bracket racing, I know I sure as hell won't be in the same bracket as you guys! Do you guys have like a GTH class or something? LOL

Our classing is weird here. To this point, it has been pretty much just made up by our race director as he goes along for the top three classes, with the next three based on ITA, ITB and ITC. We recently went from 12 classes to 6, eliminating IT classes and calling them GT4, GT5 and GT6. We're in GT3 this year, which is our catch all class, incorporating ITR, ITS and ITE classes, and anything that doesn't fit in another class. GT1 and GT2 are tube frame and semi tube frame, based on displacement. Makes more sense than the race director going "Hmmm...I think you go in GT2" by looking at your car and pulling it out of the air.


Anyway, back to my point. I would love to do some racing in Ontario if the funds and scheduling allows. We'll see!

And three hours?! Our enduro races here at 1 hour! hahaha Mostly because half of the guys drive antiques that can't stay running longer than that, and the other half aren't in the best physical form. haha Even when they team up and change drivers, they have a hard time with 1 hour (1/2 hour each, I know I do too!) Although we're planning a 3 hour race for this year.

23Racer

Oh come on Mosport isn't too different than Atlantic Motorsport Park or Shubanacadie for old guys. I am pulling about 215 to 220 kmh going into 8. Al may be pulling 225 to 230 kmh. You are well over 160 kmh on a number of the corners. It would be a blast to see your car fully wound out, though the pucker factor would keep you slower for the first few sessions.

Think about it and if you have any questions as to cost, timelines etc.... talk to Bruce McNutt. He has done the event a number of times in the last few years.

Eric

Redshft

iTrader: (1)

That sounds like a lot of fun. Will need to take a hard look at the remaining budget once I get into the new house.

As for the speeds, the Formula cars are just hitting 220km/h at the end of the back "straight" (not that it's actually straight) at AMP. Would be nice to do a school or something to get the lay of the land first.

... and we know Bruce well. I'm sure he'll try and talk us into it as well.


But, even if the budget doesn't allow us to race, it might allow us to come up and be part of it. Be an extra set of hands if nothing else.
Another friend of ours crews for a couple of Nissan NX2000s, so I'm sure he'd be after us as well.

PinkRacer

Holy crap. At AMP, the Open Wheel cars are barely hitting those top speeds, let alone the sedans! Haha

And I'm actually emailing back and forth with Bruce McNutt at the moment, I know him quite well.

We'll see, likely won't have the budget this year, but there's always next year.

Redshft

iTrader: (1)

Well, got the happy call just 10 minutes ago that the pallet has arrived at the shippers warehouse. Scheduled to go pick it up around supper time.

I have 2 other people recruited to help do the install this weekend.

Oil cooler lines arrived last night, the courier is "out for delivery" with my competition transmission mounts and my exhaust hangers (I hope, since Joe seemed to receive a set of exhaust hangers from Mazda Competition the other day...)

Just need the box Joe shipped Expresspost with a few minor things like the leftover fittings and bolts..oh, and my Carb, Distributor, Coils, Ignition Box... nothing important.
I've never wished to see the mail carrier so badly in my life...

Redshft

iTrader: (1)

The nice Canada Post lady just dropped off the box with my vital bits from RPM. Woohoo...

Just need the UPS guy to drop off my mounts, head to Day and Ross to pick up the pallet. Then the minor issue of getting it installed in the car and running.

Don't mind me... I'm just excited and having a conference-call intensive "work from home" day...

23Racer

I noticed something very interesting looking at this thread. Both of RPM's motors turned out to have the same chassis dyno information, untuned. In my case it was because the car was hitting the rev limiter on the stock S4 ECU and spark break up and using Al Balinsky's Holley setup with no jetting changes. The car was running dog rich. On the Redshift motor it was air/fuel issues.

I laughed when I saw that both cars on the Dynojet dyno's (granted uncorrected for temp or air quality numbers on mine) hit 184.1 on mine and 184.3 on his.

It just made me go hmmmm.........

Comments???

Eric

Redshft

iTrader: (1)

Eric, that's...well.. that's just weird. (Not the right word, but the best I can come up with on a Sunday morning.)
What are the odds of that?

I don't know if that's a huge coincidence, or we've just discovered that a bridge that's not tuned yet always makes 184hp... hmm.. have to think on this one.

As an aside, thanks again for the transmission. Jenn spent some time yesterday with some de-greaser and a brush and it looks pretty good. I put some new competition mounts on it as well.

Got the engine and transmission in the car yesterday.
Had a few issues cost us a bit of time, but engine and tranny are in, header is on, distributor and ignition are in and wired, starter is on, alternator is on, oil-cooler lines are half done.
After the F1 race is over, need to finish the oil cooler lines, bolt up the rest of the exhaust, put the radiator in, fill it with fluids and triple-check every bolt, belt and hose.

Issues so far haven't been too bad.. had to drill and tap one of the bolt holes in the tranny for the starter, one of the vacuum advance manifolds on the distributor was hitting on the block, the header was a little too snug against the manifold (both of those issues solved with a bench grinder) and now need to notch the alternator bracket since it JUST interferes with the distributor cap.

PinkRacer

It's alive!!

http://www.youtube.com/watch?v=gRSI4KTDJLU

PinkRacer

It's been a long weekend. I am ACHING from all the bending, lifting and lugging.

On Friday night, we went and picked up our pallet. They put it on the truck with a forklift, and Dave and another RX7 friend of ours lifted it off the truck with the help of a set of ATV ramps. They lugged it into the garage (engine and tranny connected, thank goodness! I didn't want to connect them!), and we called it a night.

Bright and early Saturday morning we went looking for little bits that we were missing at local hardware and auto parts stores. We worked all afternoon (with a short lunch break) with the help of one of our pit crew and the same friend from Friday night. 7 or 8 hours. A hole was stripped in the tranny for one of the starter bolts, so they had to retap that, and there were a few other little kinks. Got the engine in place and bolted down and a little bit of the ignition done. We finally called it a night around 8:30 and went to supper. Our pit crew guy stayed over night.

We went back at it this morning. I did the engine electrical, fuel system (including carb disassembly to put in 46mm chokes and some bigger air jets), and I cleaned the engine bay up. The boys hooked up the oil cooler with the new RB lines, and the cooling system, and the exhaust (one of the studs was different and we don't have a nut for it, that's why the header leaks. Going to find a nut for it this week). Finally around 6:00pm, we fired it up and it came to life.

Now we need to find a nut for the header, finish a few small projects inside the car (battery box, cleaning, painting, some new roll cage padding), clean the outside of the car, install the actual rad we'll be using (it's coming on Tuesday), and get a few other odds and ends put on (throttle cable, shifter bushings, some nuts and bolts and an exhaust hanger), new gauges (hopefully next weekend), clean it up, and it will be ready for the car show. Then we have to do all of the fluids, and some last minute stuff (safety wiring, etc.) before it hits the track in May (and we need to get dyno time and some break in time on the track somewhere in there haha)

I also need to hook the Tach back up to the Trailing coil. I had it hooked to the output on the box, and it is all over the place. It's surprisingly more accurate on the coil. Not sure why...maybe it's trying to add multipliers to it??

PinkRacer

Photo update!

PinkRacer

PinkRacer

RacerJason

iTrader: (5)

Very nice. You might want to consider a collected single exaust in the future.

Craiger

iTrader: (1)

It is probably the wrong kind of signal for that tach. From my readings for my megasquirt, there appears to be 2 main kinds of tach signals (each with their own variables), low voltage and high voltage. Low voltage is the signal that most ECU's will output to a tach and high voltage is from the switched side of a coil. If your works off the switch then it is obviously compatible with the high voltage signal, and i would assume that the tach lead on the output box is a low voltage (similar to that of an ECU). Since it is obviously an aftermarket guage, I would look and see if there is some kind of a switch to change it from one signal conditioner to the other.

Here is the link to tach outputs for the megasquirt, as you can see they're very different (ie. different transistor and resistor to coil swap). Whatever the diagram is for your output box will surely be different, this is just to show the physical differences in the circuts. http://www.msextra.com/manuals/MS_Ex...l.htm#tachoout

01Racing

I was looking at your accessory drive pulleys...........those look like racing beat double pulleys. THEY DONT WORK OVER 7500RPM! If you want to know how i know this, my bridgeport overheated after about 2 hot laps with that pulley set up on it. I called Mazdaspeed and they sent me the right ones. My crank pulley is much smaller and my waterpump pulley is about 2 inches bigger in diameter than the one your showing in the pics. The stock or racing beat pulleys will cavatate your water pump over about 6500rpm at 7000 its worse and at 7500 for any length of time your water temps will skyrocket!

R.P.M.

iTrader: (3)

Nice!!

Glad to see it made it to you on time and the install went well!

Did you like my spare bridge port iron I sent along with it I guess I cut a little tooo much material out of it!

Redshft

iTrader: (1)

Thanks for the tip Al. I honestly don't know for sure which pulleys they are. I got them used from somebody parting out their race car, but they certainly do look like the Racing Beat ones.
I actually have a larger water-pump pulley as well, but it's only single-belt, which has kind of baffled me (since it came in the set with the dual belt main and alternator pulleys.)
The main is smaller than the stock, but I can't say how much. I'll have to keep an eye on that, and do something once the bank account recovers.


At least the car should look good for the show next week. Just need to get the new radiator and Taurus e-Fan in, and all of the ducting/undertrays etc. back on, and the engine bay should be just about done. (for now)

Joe: Yes, the "scrap" iron and the extra set of housings survived the trip just fine. I'll be using the iron for display purposes next week. Engine went in just fine. I took off the S5 filler neck from the water pump and put on the S4 since all of my rad hoses are S4, and I gutted the thermostat while I was in there. Otherwise the biggest issues were pulling out the diffusers etc. so that the fuel injection blockoffs would fit, and re-taping that starter mount. So, not bad at all, and you saw how easily it started. I was surprised. Figured starting would take longer and require more fumbling around.
Also, found a nut that fit the odd-man-out header stud, so that's all snugged up now.

*Edit: Every time I see those pictures, I'm shocked that we did all of this in such a small garage. I really need to get into my new house next month....

01Racing

The pulleys you have look just like the Racing Beat dual pulley set up. I am enclosing a pic of the Mazdacomp set up. I know money is always tight, but the pulleys could save you a fortune if you know what I mean. Enclosed is a pic of the pulley set.

PinkRacer

We have what looks like that water pump pulley, but we were hoping to run dual belts (we already had one break on the track last year, and the second one kept everything running until we came into the pits and found that the first was gone!).

Hmmm, might have to swap it on and look into the other ones when budget becomes available. (hah!)

23Racer

Just a different opinion from Al's. I run the Racing Beat crank pulley, with the Racing Beat Alternator double sheave pulley.

I don't pull the same RPM that Al does as I limit my RPM's to 8500, but at sustained 8400 to 8500 rev limits (3 hour race) the car never sees water or oil temps above 200 degrees. In fact a lot of time I am struggling to get the temps above 160 degrees. Al is making close to 300 engine hp and pulling to about 9,500 rpm, where I am making less and maybe that is the deciding issue.

As well, at Mosport we are at full throttle for at least 20 seconds so we are making a lot more heat for longer than you will. Where you may have an issue is with timing (too retarded builds a lot of temps that are engine speed related) and airflow through the rad. AMP is a lot like Shannonville and both Al and I struggle with keeping the oil cool enough. Al is running a real Mazda Comp cooler and I was always having issues until I went to a double (in parallel) stock cooler without thermostats setup. Now my car is bone reliable and so is Al's.

I think you are somewhere in the middle and if you go with what you have, you may need to limit your max rpm to below 8500 rpm, like I do.

Eric

01Racing

My experience is based on running a bridgeport with smaller ports than you have. Our water temps went ballistic over 7000 rpm.