Max Energy

Tony,
The project is comming along Beautifully
Max

TonyG

UPDATE.... it's powder coated.. finally.

Now it's time to put it together. Today is day 1 of assembling the car.

I'm putting the engine & transmission, the main fuel cell, and hand tighten the front and rear suspension.

Then it's back on the trailer... back to Vision to finish the front suspension, the front tubular frame, the splitter, and the install and ducting of the dual oil coolers and the new radiator.

Then it's back to me to plumb and wire......

Note... the trans is my backup trans. The trans out of the red car (S2 box with Guard 50/80 LSD) is going to Lanny in Canada. My new trans (a S2 box with a Guard 40/60 LSD) and it's just not ready yet. So I will have to set the car with a standard AOR trans for the time being....

TonyG


...

eclou

sure looks pretty!

333pg333

Really would have thought that the stock 951 gearing was more suited to this car?

ausgeflippt951

Good thoughts Patrick-- interesting to me as well.

Honestly would've thought you'd be running a 968 box, Tony? Either way, great to see progress on the car!

333pg333

I've modified post# 261 Colin to include the 968 ratios and I still believe the 951 stock gearing seems the best of the bunch for a V8. That's all on the basis that you drive those things on their torque, not rpm of course. I might be starting with the wrong precept.

TonyG

It all comes down to where you are (mph) in 3rd gear at 4000rpms.

You can't use 1st or 2nd in any of the transmissions as the half of the 1 & 2 gear set that are on the input shaft are too small and will break.

That leaves 3,4,5 (and 6th in the case of a 968 box).

And since I never want to be below 4000rpms, where in terms of mph at I in 3rd in each box? 55mph with the S2 and 968 box. 65mph with the 944T box (too high).

And just as an FYI, I'd have to drop 500rpms to 3500rpms to be at 55mph in the 944T box, which at that lower 3500 rpms, results in a loss of 50+TQ at the wheels. Not worth it. The car is clearly faster with the shorter gearing.

And while the 3rd gear rpms are OK on the 968 box, it requires another shift on the top end where the S2 box doesn't. And a unnecessary shift against a sequential box 911 will cost you 1/2 car length+ on each extra shift.

That's why, even with the V8's wide power band... it's faster with the S2 box on the track.

And... if the track is short enough... the S2 box with the 944T 5th gear is a very nice combo.

TonyG

TonyG

Today's update... brake pedals installed, steering shaft installed, rear suspension installed, rear window fabrication started....

TonyG


...

333pg333

Fair enough and I get what you mean in terms of gear plotting, but I wonder if you will have to start all your calcs from scratch now? So you might be in a totally different rpm range with a faster lighter car at a certain corner or straight. In other words, to your point, you may not have to change gear as often with a much lighter car and longer gearing. Still, whatever you have, this things is going to be stupidly fast!

disasterman

Nice to see it come together. How nice to build on a stripped, powder coated chassis.

eclou

this is virtually becoming a front LS1 engined 911 with 50/50 weight balance

Lemming

I prefer the turbo trans in my car, and yes I have tried both. Of course, I'm at near peak torque at 2800 rpms and the curve remains flat till I hit readline at 6400.

ausgeflippt951

Agreed, not to mention that every track may advocate different gearing than others. I know Tony likes to run at Auto Club Spwy near L.A., so perhaps that's where the bulk of the empirical experience lies.

I suppose that based on the tracks Tony likes to run at, the Turbo trans seems to be the best compromise. I can see the 6-sp's extra shift getting in the way.

95ONE

Actually, what I get from all this, is since you can't use 1st or 2nd, you are actually using 3, 4, 5 as MUCH TALLER 2,3,4's. So in essence, you are really looking for taller gearing by using the next gear up as you would one gear down... kinda hurt my brain there to describe that.

LS1Porch

With all the work going into this car (is it even a 944 any more? ) i don't see why you're limiting yourself to an S2 or Turbo trans. This would be a great time to put in a Corvette transaxle or get something newer from the Porsche world.