My engine build

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Permalink Reply by Jason Thorne on March 4, 2011 at 6:18pm

What crank and rods?  What other engine specs?

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Permalink Reply by Jim Havens on March 4, 2011 at 6:50pm

Forged JE coned pistons--about 9-1 comp, scat h-been forged rods file fit rings the crank is stock. I wont be running to much boost the crank should be alright--my idea not crises but he feels it should be fine at about 600wheel. The block is 20 over he grouted the block about half way. It has billet mains everything is studed crank- -heads.M-1 4bbl intake 55mil TB. 60lb injectors--of course sct tuned

Jason Thorne said:

What crank and rods?  What other engine specs?

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Permalink Reply by Jason Thorne on March 4, 2011 at 7:09pm

Why not much boost?  I need to get mine tuned again and change the wastegate spring.  How big is your wastegate?  I think mine is starting to creep, my engine is a whole new animal compared to when you saw it on the dyno last fall.  I saw 14psi the other day, not cool.  I'm supposed to have a 6psi spring in the gate right now but I see 10psi spikes all the time.  I got scared as shit when I saw 14.

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Permalink Reply by Jim Havens on March 4, 2011 at 8:42pm

I'll be running about 10lbs and that should be good for 550 or better rwhp I'm hoping tro see closer to 600 but that is pushing well over 700 crank and thats alot with these blocks and a stock crank.. I'm getting a new waste gate with the new front mount system and not shure what size it is. With the old sts system I never had boost creep at all. Do you have a wide band? And if you do what was your a/f at 14lbs?

Jason Thorne said:

Why not much boost?  I need to get mine tuned again and change the wastegate spring.  How big is your wastegate?  I think mine is starting to creep, my engine is a whole new animal compared to when you saw it on the dyno last fall.  I saw 14psi the other day, not cool.  I'm supposed to have a 6psi spring in the gate right now but I see 10psi spikes all the time.  I got scared as shit when I saw 14.

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Permalink Reply by Jason Thorne on March 5, 2011 at 2:34am

I didn't stay in it long enough to see what the a/f was but it wasn't lean, in fact I bet it was near 11 flat.  This thing needs a tune pretty bad.

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Permalink Reply by Jason Thorne on March 9, 2011 at 1:09am

What valve springs are you using this time around?

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Permalink Reply by Jim Havens on March 11, 2011 at 11:04pm

I havent any idea I trust cris to make the right move there--you asked me about the blow off--it is a 44mil tial unit the engine should be going in this coming week just waiting on my convertor its a 10' 3000stall turb o action unit.

Jason Thorne said:

What valve springs are you using this time around?

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Permalink Reply by Jim Havens on May 25, 2011 at 8:48pm

Jim Havens said:

I havent any idea I trust cris to make the right move there--you asked me about the blow off--it is a 44mil tial unit the engine should be going in this coming week just waiting on my convertor its a 10' 3000stall turb o action unit.

Jason Thorne said:

What valve springs are you using this time around?

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Permalink Reply by Jim Havens on May 25, 2011 at 8:57pm

The motor is done and tuned it made 532hp and 502 tq at 15 psi and safe pump gas tune--more than enough to put me in the 10s--there is more in her .

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