Where to go from here?

[Shawn Anderson]

Hi I am new to your forum (at least to posting) and need some help. I have a 05 GT with a D1sc procharger intercooled system at 10 psi of boost, gt500 fuel pumps, no cat x pipe, JBA axle back. It made 470whp when tuned at Don Walsh Racing. It also has 4:10 gears steada rear upper and lower arms and adjustible panard rod. I hurt the motor and am pulling it out for a rebuild (timming chain guide I think). Right now I am thinking stronger internals, ported heads, headers and more boost. I am also thinking of a 4r70w swap. Any thoughts on a engine build? Things well worth doing? Parts not worh it? How a about a stroker or big bore block? I would like to run mid to high 10's right now a best of 12:25 with 1'7 60's

 

[US-1]

I'm a fan of big bore engines (305")personally. A stock stroke big bore would easily put you deep into the tens with good heads and stock cams. On the rebuild I'd also use billet oill pump gears and ditch the plastic chain tensioners for iron tensioners from the two valve engines. Add a decent set of drop in valve springs for a bit more insurance and you're good. Let me know if you're interested in a big bore. I'm building three of them right now.

A stroker would work but, in my opinion, your D1 would like the big bore better. The main problem with strokers right now is the availabiltiy of 3.750" cranks (298"). Kellogg is out as are most of the suppliers and builders. Won't be ready until late December. That leaves you with the 3.800" crank setups. These give 302" but piston availability is limited. Not many choices on compression ratios.

 

[irishpwr46]

everything us1 just said is as good as money you can take to the bank

 

[Pike2244]

As I am in your same predicament I am going with a 5.0 Stroker 302 at a 9.3 compression with a whipple... I had no idea about the Crank shortage. I'm subscribing I want to see where your build goes.

 

[redstangs9308gt]

Had this same problem from June-Aug. Good luck

 

[Shawn Anderson]

I am suprised at how much the big bore blocks went up in price $1,400 vs.$990. Did not know of the crank shortage. What kinda comp ratio should I go with? I was thinking 9 to 1 or so.

 

[US-1]

The price increase both surprised me and pissed me off. FRPP is frickin' weird like that. I'm going to corner their marketing/price manager at SEMA this week and see how badly I can piss him off. That kind of jump destroys engine builders profit margins. You just can't plan for anything when they are changing the pricing that drastically from week to week.

I'm not a fan of anything below 9.4:1 compression.

 

[stkjock]

470 whp and 12.25, you need seat time, practice, slicks, skinnies and suspension parts too, before you get more power. At 470 who you should be near 11.25 IMHO


moved to chat......

 

[Shawn Anderson]

How is this not Tech? Comprestion question and price of block

 

[stkjock]

you're asking for advice on what to do, not how to do it or diagnose a issue.

http://www.s197forum.com/forum/showthread.php?t=30272

It is not for discussion of which part to buy or what exhaust sounds best.

THAT'S HOW

 

[Shawn Anderson]

And this was tech, http://www.s197forum.com/forum/showthread.php?t=45270&page=5

 

[Dave]

And this was tech, http://www.s197forum.com/forum/showthread.php?t=45270&page=5

stk wasn't being rude no need to argue. he's just telling you like it is and givin you a little shit, get used to it.

 

[Steedman07]

if you would stop fucking arguing, you would see that a 12.25 is horrible for your power..I am in the same boat..I am not throwing anymore power at it until I get the times consistent with the power..I too should run a low 11, but I dont. Why? Cuz I suck. I am not going to throw 600 horsepower at it to get there. I am going to keep working with what I have and tweak some stuff..

 

[stkjock]

And this was tech, http://www.s197forum.com/forum/showthread.php?t=45270&page=5

yep.....................