Project "Payback"

[Vegas69]

Originally Posted by Track Junky

Judging from that first pic 2.75 seems modest. With the car as heavy as it is I dont know that I would change spring rates. To me it's all about timing...How long and how much do you want to compress and rebound before your in and out of the throttle. Get what I mean? I hope I explain this right but I look at it as the amount of time it takes to compress the shock before it bottoms out and then has no where to go but sideways for the front. Out rear, IMO, it seems your shifting to much weight to the front under hard braking. I was thinking more along the lines of double or triple adjustable shocks out back to minimize and slow that down. Like I always say, I'm no pro at suspensions but thats a peice of my thought process when I'm tuning.

I set the rear shocks up myself with my custom mounting brackets so it's definitely 2.75". You have to remember that we are coming to a complete stop at threshold braking. I do agree with slowing down the weight transfer but when you are braking for 100 feet or more, it's only going to slow the process. I'm going to do exactly what Brian told me to do in my next autocross and if that doesn't do it, it's time for a front spring change and/or rear shocks with compression and rebound adjustments. I've never really felt my car got out of the hole that well but last weekend definitely changed my mind on that whole deal. I still think I can get out of the hole better with better shocks and a taller first gear. Time will tell.

[Sieg]

Originally Posted by Vegas69

a taller first gear

Similar to 2.66 1st and 1.78 2nd? With your motor that "should" be an improvement over the 2.87 / 1.89.

[Vegas69]

[Sieg]

[Flash68]

Originally Posted by Sieg

Similar to 2.66 1st and 1.78 2nd? With your motor that "should" be an improvement over the 2.87 / 1.89.

Yep, the TKO has terrible ratio spreads IMO for performance anything.

[57hemicuda]

I knew there wasn't going to be a TKO at that event, both cars are just so strong. I'm just glad someone is keeping the Big Block Camaro heritage competitive, everything can't have an LS engine.(I'm one to talk)

[Vegas69]

Thanks Ron, it definitely makes it interesting for me to compete with such old technology. I have to be honest, everybody has underdogged me for so long for running a big block chevy. In many ways, I really think it's an advantage in these multi events. The extra nose weight over the aluminum block LSX stuff in autocross is really the only negative I see(75-100lbs). The amount of torque and engine braking cancels that out in IMO. My engine make a lot of average power. I'm making 604 ftlbs at only 3700 rpm. I'm still making 631 hp at 6800 rpm(Redline) and over 500 ftlbs at 6700 rpm.

So, my average power from 3500-6800 is:

581.1 hp 598.13 TQ

Peak:

666.7 HP/6200 RPM 641.1 TQ/4700

Jason Pettis built me one hell of an all around engine that is very streetable. We discussed in great detail what I intended to do with the car and he nailed it. End of story.