Rear Leaf Spring Help Needed

mudjnky · #1 10-11-2006, 12:06 AM

It actually runs better than any other performance engine I've had. Steel head, everything was set up on it when we got it. Cross Ram with Edelbrock 600 or 650, not sure.

**WILMASBOYL78** · #2 10-11-2006, 12:26 AM

Cross Ram??? do you mean an aluminum hi-rise single 4bbl manifold or does it have 2 carbs?? Edelbrock carb 600-650 would be a little small for that motor, but if it works..ok

The steel head BB GMPP engine is rated at 425hp..their alum head is rated at 440hp. Thanks for the feedback.

wilma

mudjnky · #3 10-11-2006, 01:42 AM

Cross Ram, 2 4bbl Carbs side by side

mudjnky · #4 10-11-2006, 01:47 AM

Heres a link to a picture of the car, I'm at work so i can't attach any pictures.

http://www.edselmotors.com/yenko2a/moreyenko014-tb.html

**WILMASBOYL78** · #5 10-11-2006, 01:47 AM

wilma

mudjnky · #6 10-11-2006, 02:06 AM

When my engine guy calculated everything it is supposed to make 450hp, you are right, 425hp out of the crate, sorry about that.

**scuncio** · #7 10-11-2006, 02:14 AM

I just went through a similar scenario. I eliminated the top pad (between perch and spring), installed 1" lowering blocks from Guldstrand on top of each leaf pack, and reused the lower pad between the shock mount and leaf pack. When I mocked everything up, for whatever reason, the RH pad didn't want to sit flat against the spring. I set the car up on corner scales and played around with shims until the cross weights were close. But I digress...
Here's my suggestion: if you don't want to cut one of the existing perches off and properly reinstall it so it's correctly positioned, measure how far it's rotated and use one of these between the spring and perch: http://www.speedwaymotors.com/xq/asp...qx/Product.htm

Hope this helps.

**scuncio** · #8 10-11-2006, 02:17 AM

One more thing: if the fore-aft location of the rear wheels is different from side to side, these lowering blocks allow you to dial it in perfectly: http://www.speedwaymotors.com/xq/asp...qx/Product.htm

The circle track guys have some trick parts!

**WILMASBOYL78** · #9 10-11-2006, 03:03 AM

[ QUOTE ]
When my engine guy calculated everything it is supposed to make 450hp, you are right, 425hp out of the crate, sorry about that.

[/ QUOTE ]

I know this is a hijack but the crate motor stuff is interesting. GM claims 425hp with 163 intake and single 4bbl with headers...you have a dual quad setup..haven't seen a cross ram setup like that in a long time....I didn't think the motor really had too much with the big rect port heads and low compression: 8.75 to 1(advertised)..we put the 502/502 cam in and switched to alum heads(shaved slightly)..I still don't think it is all it could be, but it is fine for the street scene.

wilma

mudjnky · #10 10-11-2006, 05:14 AM

We're going to put in a bigger cam over the winter. I hope that will wake it up some. One more show in a few weeks then it all comes apart.

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