vetteguy22

Well I finally took the plunge and ordered my frame from Mike at SR111 today. He says I should expect delivery in about 6 weeks. My T56 magnum trani should be arriving any day now so things are starting to progress. Can't wait to get started assembly. Now all I need to do is get my batwing and front sway bar back to him so he can prep them for the new frame.
Rob

ZBRA

Keep us updated along the way! We like the pics.

1FastHaole

Rob,
any progress update? Did you get the chassis?

vetteguy22

Sorry guys,
Yes I got the frame and T56 magnum trani. The suspensions is from a 93 ZR1 with dual adjustable coil overs in each corner. The motor is also done and is a gen 1 small block 427 doing 603hp and 540lb/ft of torque according to the dyno. The front tires are P275/40/ZR17 and the rears are P315/35/ZR17. I have been trying to find the time to finish plumbing the brakes and fuel lines but between work and my wife's health issues, I have't finished that yet. I am waiting for my hydroboost and C5 master cylinder to arrive soon and I did order the body mounts and lifting straps yesterday so as soon as I can finish the plumbing, I hope to begin transferring the body. Once the transfer is done I can
begin the body work. I have L88 flares and hood scoop to install. Also need to get a roll bar and fuel cell. Hope to be spending some time on the road race track when it is done. I do have to take my wife to the doc on Thursday again. Hoping for some good news. I will try to post some pics this weekend if I can. Thanks for the incentive to write 1FastHaole. I see you're into SCCA solo. I do tech for SCCA at Thunder Hill, Infineon and Laguna Seca. I enjoy being able to check out the cars and talk with the drivers.

Shark Racer

Curious why you think C5 suspension is outdated. C4 I can see.

Please explain.

Gale Banks 80'

I'm wondering about Your Wheel an tire Combo with L-88 Flares. I'm useing the same Wheel and Tire Combo on my 80 and Flare'd the Rears 1 1/4" and the front 1/2". If you don't know Your C3's all that well looking at my car You would think the Wheelwells were stock. I realise that the C4 suspension might be a bit wider track but thats not going to change what fits in the wheelwell of a C3. As the 315 tire is only 26.2 inch tall its never going to fill a L-88 Flare. I realise that You don't have the body on the Frame yet so its early to see what works and what dosn't. I'm just giving You a Heads up for planning ahead. If I was to start my Car all over I would be very Temped to Use the SrIII Frame myself.

vetteguy22

Hi Gale Banks 80', Thanks for the heads up. I thought the stock 255/60/15 was about the same height as the 315 and yes the C4 suspension is quit a bit wider than the C3. I made my decision on the tires size after talking with Mike at SRIII and seeing the 1981? that he did the same thing to. If you check out his web site there is a god pic of it.

69427

The C4 suspension can be narrowed to fit a C3 for use with stock wheels or aftermarket wheels.

MotorHead

Funny I have seen personally 3 C5's blow their rear ends at the dragstrip and leave a 1/4 mile of oil on the the track and know two more that did all were stock C5's and none were Z06's. I am not trying to get into any kind of argument here just presenting the facts.

Shark Racer

There are pretty big differences between the C6Z differential and and a stock C5 diff...

http://rkt56.com/why-upgrade/rkt56-b...-differential/

MotorHead

That's nice to know but has nothing to do with my post so why are you quoting me ?

93Polo

Agreed, the C6Z can handle some power, the C5s have been known to blow up.

If you are going to adapt a rear why not a D44, 9" or some other diff.

The D44 in the C4 can take some abuse, the outer spindle in a C4 setup usually breaks before the D44, and then you have to be running some fast 60 ft times. C4 D44 have lived deep into the 10s and Vipers have gone 7s on the D44 rear.

93Polo

Are you sure thats a Viper diff?

It looks like a Ford 8.8 (which is a godd diff) with the front mounting tabs. Vipers use a torque arm front mount much like a C4.

A Viper diff is a D44, C4 D44s will accept Viper gears.

Shark Racer

Sorry, I misread the quoting thread. Guy you quoted referred to C5 diffs and for some reason I thought he was talking about C6 diffs when he mentioned LS7.

holley505

I dont understand how the TUBE chasis could have more weight? Is that not one of the benfits of doing this? I get that you have a updated chasis for better handling... but weighing more seems to make it not worth the effort or the cost.

I would hope to see 300-400lbs savings.

69427

Exactly how much do you think the stock frame and suspension weighs?

vettehardt

It isn't just about weight. It's about the stiffness of the frame. You can add a weld in roll bar to a stock C3 and it will stiffen up the chassis and provide better handling even though you added the weight of the bar. But, if you can get a stiffer chassis with out adding weight, that would be the best route.

93Polo

Coming from GM A-bodoes (70 Chevelle) the geometry can be corrected, wide tires can be added, but then chassis flex becomes a problem.

vetteguy22

Yes the C4 suspension can be narrowed but I wanted the wider stance. The car will be so far from being original that I was not worried about narrowing it. Besides I love the look of the flairs.

Gale Banks 80'

I have never owned or looked under a Viper. I understand there are early and Late D 44's in them. I bought a Late D44 Viper case to see what it would take to install in a C3. The Mounting is just like the one in the Picture.