6.0 + 244/248... hp/tq predictions?
05-31-2005, 11:25 AM
#1
6.0 + 244/248... hp/tq predictions? I sadly did not have enough time to dyno my car after I completed my 6.0 swap a couple weeks ago. I had to leave for CA for a job this summer before I got a chance to get it to a dyno or anything. So I'm pretty curious as to what I should be putting down with my setup once tuned. Here is what I have:
6.0 iron block bored .060 over
317 LQ9 heads with PRC dual spring kit
244/248 .635/.627 112 w/ 4 degrees advance ground in
Ported LS6 pump, double roller, etc
LS6 intake
Ported TB
March U/D Pulley
Gran. 85mm MAF
Lid + K&N
SLP CAI
Hooker shorties
SLP Y-pipe
LM exhaust
A/C belt disconnected for the time being.
It's an M6 with stock gears. It was really bogging down when I was driving it around a bit before I left. It's still the stock 5.7 tuning so it's pretty damn confused, but every once in a while it would get its **** together and really pull hard. Just curious as to what I can look forward to put down when I get back
6.0 iron block bored .060 over
317 LQ9 heads with PRC dual spring kit
244/248 .635/.627 112 w/ 4 degrees advance ground in
Ported LS6 pump, double roller, etc
LS6 intake
Ported TB
March U/D Pulley
Gran. 85mm MAF
Lid + K&N
SLP CAI
Hooker shorties
SLP Y-pipe
LM exhaust
A/C belt disconnected for the time being.
It's an M6 with stock gears. It was really bogging down when I was driving it around a bit before I left. It's still the stock 5.7 tuning so it's pretty damn confused, but every once in a while it would get its **** together and really pull hard. Just curious as to what I can look forward to put down when I get back
Last edited by ArcticZ28; 05-31-2005 at 03:26 PM.
05-31-2005, 01:14 PM
#2
Launching!
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I think you might want to put the stock maf back in and get some long tubes and a dual exhaust to get the max power, and get it tuned. With the stock tune and what you have, I would guess around 375 rwhp, but with a tune and the extras I listed, you will improve drastically. Probably another 100 hp. You will also need a 12-bolt and some 4.10's or 4.56's.
05-31-2005, 01:28 PM
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Launching!
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I'll throw my 2 cents:
Assuming 11.1cr, 445rwhp/435rwtq once tuned. IMO you will have a strong midrange but a tq curve that will fall early due to the shorties.
Assuming 11.1cr, 445rwhp/435rwtq once tuned. IMO you will have a strong midrange but a tq curve that will fall early due to the shorties.
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06-02-2005, 11:56 AM
#9
Well if the heads are stock and you have shorties I am gonna say you will dyno around 415-425 after its tuned.
Your gonna kill power due to lack of compression.
Your going to have a 375 cubic inch motor but only 10:1 CR if your using a 72cc head and stock head gaskets. That is not so great.
I would save up some cash have the heads ported and milled down to about 68cc's. Flycut the pistons if they aren't already done, use a .045 head gasket, add a good exhaust setup and have a 500HP car. I am guessing by your post that your heads are stock. Open them up to a 4.060 bore run a 4.100 head gasket will make a difference by itsself.
Your gonna kill power due to lack of compression.
Your going to have a 375 cubic inch motor but only 10:1 CR if your using a 72cc head and stock head gaskets. That is not so great.
I would save up some cash have the heads ported and milled down to about 68cc's. Flycut the pistons if they aren't already done, use a .045 head gasket, add a good exhaust setup and have a 500HP car. I am guessing by your post that your heads are stock. Open them up to a 4.060 bore run a 4.100 head gasket will make a difference by itsself.
06-05-2005, 10:07 PM
#10
I'm running cometic .045 head gaskets at 4.100 right now. How much would it run me to port my heads to 4.060 bore like you said? Also, would I want to mill them at the same time? What would you suggest? By the way, my pistons have -2cc reliefs cut in them already.
