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building an engine to run a turbo on.



I've seen people run 400whp, and heard of people with 500whp on stock blocks minus cam/rocker upgrades. I plan on hitting 400whp on my stock engine with 1.9 RR's and the turbo kit I'm putting together.
 


AN entire book could be written on this subject. BAsically anytime you creat more power, you create more heat, (heat is energy) , more heat means you need more gap to compansate for the expansion on the top piston ring, this goes for any engine weather it be N/A or boosted, the appropriate amount is determined by bore size, type of piston, type of piston material, boost psi, fuel type, heat exchangers, rpm, load, manifold pressure, and more, more than what can be coverd on this page. There are alot of good books on boosted applications, study them.
 
Probably some better valve springs and depends on how much power you want to make from there.
 
QUICKSILVER462 said:
AN entire book could be written on this subject. BAsically anytime you creat more power, you create more heat, (heat is energy) , more heat means you need more gap to compansate for the expansion on the top piston ring, this goes for any engine weather it be N/A or boosted, the appropriate amount is determined by bore size, type of piston, type of piston material, boost psi, fuel type, heat exchangers, rpm, load, manifold pressure, and more, more than what can be coverd on this page. There are alot of good books on boosted applications, study them.
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But when guys are making 400-500whp without even opening the block then why even do that?

They're Grand Prix's not pro mod drag cars. Doing all that would be completely pointless on a throw away engine like the 3800 IMO.
 


it seems like running forged rods and pistons and pistons would be better because of the increased heat. and upgrading to a high strength crankshaft would be better. Forged internals will allow you to run higher levels of boost.
Is it possible to run lower compression heads and pistons because of the increased detonation?
 
Our heads all have the same cc size.

Opening rings makes it less prone to explode from kr which happens, dont pretend these things are invincible.

However its not worth the machine shop charges. Buy two new engines for that.

Only "stronger" crank is from swan racing. Its two grand, pistons are 800 and so are the rods. Then 800-1200 for machine work.

4800-5200

How many used engines can you buy for that?

That's how backwards we are.

Screw building engines when you can blow up many stock units and still come out ahead.

And zzp made all of the power on stock bottom ends. More than you'll ever make.

What are your plans for a transmission? They usually dont last long at all above 300 whp.
 
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