powerdyne
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Staging Lane
Joined: Jan 2006
Posts: 69
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From: Beaumont
powerdyne now i know alot of people dont like powerdyne for whatever reason but i've heard they've gotten better. does anyone think this is a good setup:
Powerdyne
small cam (maybe edelbrock or lt4)
some ported heads
4.10's
full exhaust
i'm trying to get some good power on maybe stock compression. how much boost is it good for before i need to lower compression? just wanna know if i can get around 400 to the wheels with this setup and keep stock compression for the time being and keep it pretty well mannered on the street with some respectable gas mileage. dont wanna go crazy with the car though. suggestions and feedback on setup, cam choice, etc?
Powerdyne
small cam (maybe edelbrock or lt4)
some ported heads
4.10's
full exhaust
i'm trying to get some good power on maybe stock compression. how much boost is it good for before i need to lower compression? just wanna know if i can get around 400 to the wheels with this setup and keep stock compression for the time being and keep it pretty well mannered on the street with some respectable gas mileage. dont wanna go crazy with the car though. suggestions and feedback on setup, cam choice, etc?
Launching!
Joined: Feb 2006
Posts: 206
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honestly I have seen some cars live w/ stock compression and seen others blow up... If you are going to spend this much money you could just save a little extra and go with the trickflow heads... they will lower your compression a good bit and make it much safer.
Originally Posted by LT1nitrouZ
honestly I have seen some cars live w/ stock compression and seen others blow up... If you are going to spend this much money you could just save a little extra and go with the trickflow heads... they will lower your compression a good bit and make it much safer.
agreed ive seen a few car blow up stock with a blower at only 4lbs and some will take 6.7-7 lbs of boost and be fine. Trick Flow heads better be safe than buy a new motor.
TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
As long as the fuel is there and the timing is set up to complement the boost , it will live with 400 to 450 FWhp. But add detonation to the mix and the pistons will go south in a hurry, or you will pound the rod bearings out as well.
If you plan on a long range set-up then I would add some larger CC heads like mentioned.
One thing to consider with forced induction is that the larger the chamber the more air there is that enters the cylender (remember the air coming in isn't ambient its boosted).
If you plan on a long range set-up then I would add some larger CC heads like mentioned.
One thing to consider with forced induction is that the larger the chamber the more air there is that enters the cylender (remember the air coming in isn't ambient its boosted).
Thread Starter
Staging Lane
Joined: Jan 2006
Posts: 69
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From: Beaumont
what compression do the trick flow heads make it? could i maybe add some bigger head gaskets to lower compression? all i wanna do is about 4.5 to 6 lbs to keep it running with the same manners it has now. i dont really plan on going all out with it. what if i just did a port and polish on the heads?
TECH Fanatic
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
The compression drop from a 55-58 to a 64 would be about .8 to 1.0 of a point in compression. The factory gasket is pretty thick (.049 if I remember right) so the only gaskets thicker than that I know of are those rubber coated shim gaskets, not sure on it thickness, but it would have to be at least .060 or .070 thick to do the job.
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Thicker headgaskets is not the solution to drop the compression ratio. You would be less prone to detonation with the stock heads and a thinner headgasket, then you would with a thicker gasket and lower compression. There are proper ways to lower the compression, and thats not it.
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Staging Lane
Joined: Jan 2006
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From: Beaumont
Originally Posted by BigKap94z
Thicker headgaskets is not the solution to drop the compression ratio. You would be less prone to detonation with the stock heads and a thinner headgasket, then you would with a thicker gasket and lower compression. There are proper ways to lower the compression, and thats not it.
TECH Apprentice
Joined: Dec 2004
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From: fort campbell
re the important thing about gasket thickness is the quench. the tighter the area ,usually around .0025-.0035", between the block and head, the less chance for detonation. You could research the topic " quench" and read some really good post about the right way and the easy way to change compression with the effects of a tight quench versus a larger thickness gasket, Art