1967 Camaro for OUSCI

[57hemicuda]

Originally Posted by Stielow

I'm using a C-6 Corvette Z06 ABS module pre-2008. The trick is the factory ABS wheel speed sensors on all four corners and tricking the ABS module to think it is still in a 2007 Corvette and it still connected to all it correct sensors. If you don't get all the sensor correct it will still work but works in a default cal that has lower ABS efficiency. If you don't get the wheel speed sensors and wiring correct the ABS will fault out at very inopportune times. The wheel speed signal error is a hard fault - the system stops working. This is the problem I had 2 years ago. Not all ABS systems and control strategies are created equal. Like the old debate on EFI on if Speed Density, Alpha-N or MAF systems were better. There are different ABS control strategies. So with all that said I mean if you get a 2002 Camaro 3 channel ABS system to work it will not be as good as a C-6 Corvette system. If you just want to keep from locking a tire that is easy. If you want to optimize stopping distance on split Mu (Dry concrete and Ice) that is harder.




Note the new gun drilled (weight savings) Strange axles, revised axle end and new spacers. The steel and aluminum spacers were machined by my buddy Ken Tibor.





Because the production ZR-1 SKF bearings are active wheel sensor I had SKF make me the SKF bearing with passive wheel speed sensors to work with the 2007 Delphi ABS module.

After a lot of debate with Brembo I chose to use the GTR Calipers over the GT Calipers. We had a lot of discussions like "How much HP? We’ll need to call back to Italy and get back to you"

So I went with Brembo's recommendation. Those brakes are not for the weak of heart or wallet. Due to my short development time line I don't have time to do a lot of experimentation with the brakes.

I have worked with the Brembo guys a bunch on other projects and I think this may be a bit over kill but they will work. I did size the system to work with the Delphi ABS system. The brakes on Red Devil worked very well and I just wanted to tweak the system a little to make it better.

With a lot of due care you can get ABS to work on an old hot rod. You just need to keep it happy with the correct sensors to make it work. I want to keep my ABS set up my competitive advantage for a while. Bosch does sell an aftermarket ABS system that is laptop programmable. So it is accessible technology to anyone with the budget or time to sort it out. I look at ABS, Stability Control and Performance Traction Management as the next thing for the aftermarket to crack into. Like EFI was 25 years ago only a few people could do it and few aftermarket company’s make systems and they were expensive. Now EFI is main stream and very easy to do. So I see chassis controls going that way in a few years.

Hey if it was easy everyone would be doing it....

If I can get the car out of paint jail I can start putting it together. (Paul and Joe are doing a great job) You can’t rush this quality of a paint job.

Mark

I know I've told you before Mark, but I'm still amazed by the simplicity, and ingenuity of this set up, and am mad I didn't think of it. LOL

Keep up the good work. Ron

[GRob]

Mark,

Fantastic build, and the components are the best of the best.

I'm surprised you don't have a bigger interest in an IRS setup for the rear, I think it'd be helpful particularly on bumpier corners, allowing you to get the power down sooner and keeping the car on line better.

Also, have you ever thought of a traction control system of some sort to also help you get the power down earlier?

[formula88]

Stielow's new powertrain being prepped for engine harness build.

[camcojb]

Can't wait.

[clill]

Stielow needs to get out in the sun more...And the dope helping him is confused because it isn't electric.

[JohnC]

Awesome. Thanks for the pics, Gordon.

John

[Stielow]

Originally Posted by GRob

Mark,

Fantastic build, and the components are the best of the best.

I'm surprised you don't have a bigger interest in an IRS setup for the rear, I think it'd be helpful particularly on bumpier corners, allowing you to get the power down sooner and keeping the car on line better.

Also, have you ever thought of a traction control system of some sort to also help you get the power down earlier?

For me the solid rear axle works great and has been very reliable and lighter than an IRS. We have learned a lot about IRSs over the last 8 years and they are better if you have the time and money to tune one.

I have driven a few traction control systems and (PTM) performance traction management systems and so far I've been faster without them. I can say that many less experienced people are faster with them. If you know the track, torque curve of the engine, gearing and have a very good tire model the PTM system is faster. But that means you need to tune it for each track and tire. I have been drivening big power cars with street rubber on them for many years and I’ve been able to calibrate my foot to get a good launch. But for 0-60 AWD is the way to go. Last year at OUSCI I had a near perfect launch for the Speed Stop deal hold about 0.8 G acceleration until 80 MPH on that dusty pad but the GTR still beat me with just WOTing it. I’m traction limited for now so adding any more power is not going to help me for the Speed Stop deal. And my braking is also nearly maxed out with the tires we can use for OUSCI.

Originally Posted by clill

Stielow needs to get out in the sun more...And the dope helping him is confused because it isn't electric.

In MI it is either snowing or above 90 degrees so I stay in the shop….

My buddy Ryan Kuhlenbeck is in town to help me get the wiring done on the ’67. He has helped me on the last 3 cars so we have the wiring for the LS9s sorted out. It is also much easier now that GM has a GMPP LSA harness to start from.



We have another version of the LS9 blower inlet that is opened up more than the one on the Red Devil. We hope to see some power gains out of that also.

[Roberts68]

Do you run the stock Tremec shifter we see there Mark or is that just for mockup?

[69Pressurized]

Hey Mark, what clutch and brake pedal set-up are you using in this build? I know you've switched it up before in other cars. Thanks

[Stielow]

Originally Posted by 69Pressurized

Hey Mark, what clutch and brake pedal set-up are you using in this build? I know you've switched it up before in other cars. Thanks

I'm using the Tremec shifter. I'm using the stock '67 pedel set up with a 2002 F-car cluth slave with a DSE adapter bracket.

Mark