408 hp questions
408 hp questions 408 callies crank Je rods, 10.5-1 wiseco pistons, 244/225 .638 lift 110 lobe separation lunati cam, patriot stage 2 4.8/5.3 heads, and LS-6 intake. What am I doing wrong? guys in the dyno section are expecting 550rwhp. how? What can I do to get there n/a. Please Help. Need your feedback. SORRY. cam is a244/255
Last edited by Orange Crush 408; Nov 14, 2004 at 10:57 AM.
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From: BFE
Limited info but off the bat, I would say more compression needed, stage 3 heads and if that cam is a reverse 244/225, way too much split (unless these are durations at different lifts).
But Give us detailed mod list and dyno graph.
But Give us detailed mod list and dyno graph.
yea thats a pretty wicked split man. dunno why you'd have it that big. 244/236 would be a more desireable split if you MUST have a decent reverse split for your goals. i'd also get the heads reworked to up the compression a little. and make sure your tune is dead on.
Originally Posted by TAQuickness
What he said Our Stg 3 6.0L heads just made 525 RWHP on our very conservative dyno.
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Originally Posted by Brian Tooley
We have not seen a Stg 2 head break 450 RWHP on a big engine, we even had one of the most respected names in the business Stg 2 head on a 408 make 430 RWHP.
Our Stg 3 6.0L heads just made 525 RWHP on our very conservative dyno.
Our Stg 3 6.0L heads just made 525 RWHP on our very conservative dyno.
Hey I think that was my car!!!
Anyway I found out that day at TEA that heads are VERY important in making big power on bigger motors. My heads flowed 296 @ .600 and need to flow atleast 325. I am buying some TEA Stage 3 heads around christmas, hopefully their move isnt going to slow down the process of getting them out.
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Originally Posted by RedReaper
Hey I think that was my car!!!
Anyway I found out that day at TEA that heads are VERY important in making big power on bigger motors. My heads flowed 296 @ .600 and need to flow atleast 325. I am buying some TEA Stage 3 heads around christmas, hopefully their move isnt going to slow down the process of getting them out.
Anyway I found out that day at TEA that heads are VERY important in making big power on bigger motors. My heads flowed 296 @ .600 and need to flow atleast 325. I am buying some TEA Stage 3 heads around christmas, hopefully their move isnt going to slow down the process of getting them out.
Last edited by cyclerage; Nov 15, 2004 at 07:30 AM.
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Well Dustin Butt's made 500+ rwhp with a 402 with a 236 cam so it can be done with smaller cams provided all the important things are there.
He had TEA stage 3 6.0l heads, lsx90, 1 7/8 kooks etc. He is in the process of changing to the soon to famous "Fireman" cam. so it will be interesting to see what it makes.
He had TEA stage 3 6.0l heads, lsx90, 1 7/8 kooks etc. He is in the process of changing to the soon to famous "Fireman" cam. so it will be interesting to see what it makes.
Also you never told us if you were a A4 or M6 car.
That will also make a huge difference.
You cam is large and much better then what you first posted.
I Defentially agree you just aren't geting enough air into the motor.
Swap to stage 3 6.0 heads milled 50 thousands for compression and add a 90mm setup and you should see a huge increase in power.
That will also make a huge difference.
You cam is large and much better then what you first posted.
I Defentially agree you just aren't geting enough air into the motor.
Swap to stage 3 6.0 heads milled 50 thousands for compression and add a 90mm setup and you should see a huge increase in power.
Originally Posted by RedReaper
Hey I think that was my car!!!
Anyway I found out that day at TEA that heads are VERY important in making big power on bigger motors. My heads flowed 296 @ .600 and need to flow atleast 325. I am buying some TEA Stage 3 heads around christmas, hopefully their move isnt going to slow down the process of getting them out.
Anyway I found out that day at TEA that heads are VERY important in making big power on bigger motors. My heads flowed 296 @ .600 and need to flow atleast 325. I am buying some TEA Stage 3 heads around christmas, hopefully their move isnt going to slow down the process of getting them out.
1 3/4 dynatechs too.
Originally Posted by 383ss
that's funny, my stage II heads with 2.02/1.60 valves and 'only' flow 293 @ 600 and I dyno'd 542/535 with NO tuning and a 246/250 cam, in a 408
1 3/4 dynatechs too.
1 3/4 dynatechs too.
My cam is ALOT smaller than yours as well. That is one of the things I am changing when I do heads. What compression are you running?? Mine is only slightly higher at 11 to 1.
**EDIT**
Nevermind just saw 12.5 to 1. Thats ALOT higher than mine too. Is this a streetable car?? Mine is a daily driver and if that much compression is streetable when I get my heads I will up the compression some. And I do mean pump gas, no race fuel.
nope, mine is a race car. cam is not outrageous on mine though. it was specd for at race motor 383.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
Originally Posted by 383ss
nope, mine is a race car. cam is not outrageous on mine though. it was specd for at race motor 383.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
No my cam is 234/242 .598/.610 114+4. Its not that big for my size of motor. My car is also my daily driver. I really wished I had a second car to drive so I could go a little more radical with it.
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Originally Posted by 383ss
nope, mine is a race car. cam is not outrageous on mine though. it was specd for at race motor 383.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
you said your cam was a 244/255?? that is about the SAME size as mine.
wasn't trying to insult your numbers, just saying that mine is a small head car and my head flow peak numbers are NOT impressive. those things aren't the end all to power.
Originally Posted by H82BBad
Well Dustin Butt's made 500+ rwhp with a 402 with a 236 cam so it can be done with smaller cams provided all the important things are there.
He had TEA stage 3 6.0l heads, lsx90, 1 7/8 kooks etc. He is in the process of changing to the soon to famous "Fireman" cam. so it will be interesting to see what it makes.
He had TEA stage 3 6.0l heads, lsx90, 1 7/8 kooks etc. He is in the process of changing to the soon to famous "Fireman" cam. so it will be interesting to see what it makes.
Haaaahaaaa..."Fireman" cam....you chucklehead. I just hope I can top the 525hp number Brian quoted earlier. I will say this....she's is pullin WAY harder up top now. I should have her dynoed and final tuned tomorrow.
Originally Posted by C4VetteLS1
Ive got a TEA Stg 2 headed 408" in my car now..ill post its #'s after final tuning and some more street breakin mileage... What heads are you running on yours? Ive got a 238/248 XE-R @ 112 cam in mine......
they are a non-sponsor, so I didn't post them. I'll pm you if you want.
