Getting to 500whp?
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Getting to 500whp?
I just picked up an 08 M6 that put down 482/446 cam only on 103 TX day with what the seller terms as a "rich" tune due to heat. http://forums.corvetteforum.com/c6-c...miles-25k.html
Cam is 224/240 .630/.630 115+3LSA
Has LGM 1 3/4 LT WO cats
Halltech with Beehive
NPP exhaust
Ported OEM mani/TB
I am thinking of changing things in this order to try and get to 500whp
UD pulley and tune
BER ported OEM manifold/ TB
Ported FAST 102 intake/ BER TB
.040 Cometic head gasket
electric cutouts
Thoughts and suggestions?
Will colder plugs be of any benefit
Will UD be worth the work to replace
Cam is 224/240 .630/.630 115+3LSA
Has LGM 1 3/4 LT WO cats
Halltech with Beehive
NPP exhaust
Ported OEM mani/TB
I am thinking of changing things in this order to try and get to 500whp
UD pulley and tune
BER ported OEM manifold/ TB
Ported FAST 102 intake/ BER TB
.040 Cometic head gasket
electric cutouts
Thoughts and suggestions?
Will colder plugs be of any benefit
Will UD be worth the work to replace
Last edited by Cajun @ Edgyvette; Apr 27, 2012 at 01:47 PM.
Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
UD pulley alone should get you around 8rwhp
I doubt there's 10rwhp left in the tune for that cam to already be dynoing 482
The easiest way to get 500rwhp is just do a few dyno tricks. Dynoing "500rwhp" will only mean you dynod 500rwhp on that particular dyno. I wouldn't worry about spending much time or money hunting for a dyno number.
I doubt there's 10rwhp left in the tune for that cam to already be dynoing 482
The easiest way to get 500rwhp is just do a few dyno tricks. Dynoing "500rwhp" will only mean you dynod 500rwhp on that particular dyno. I wouldn't worry about spending much time or money hunting for a dyno number.
Burning Brakes
Joined: Jun 2000
Posts: 1,148
Likes: 48
First thing you should do is get a tune and see where you stand. From there you can decide better what you need and who knows. You might be closer to 500RWHP than you think if the car is running too rich and you can still safely pull some fuel to gain power.
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
UD pulley alone should get you around 8rwhp
I doubt there's 10rwhp left in the tune for that cam to already be dynoing 482
The easiest way to get 500rwhp is just do a few dyno tricks. Dynoing "500rwhp" will only mean you dynod 500rwhp on that particular dyno. I wouldn't worry about spending much time or money hunting for a dyno number.
I doubt there's 10rwhp left in the tune for that cam to already be dynoing 482
The easiest way to get 500rwhp is just do a few dyno tricks. Dynoing "500rwhp" will only mean you dynod 500rwhp on that particular dyno. I wouldn't worry about spending much time or money hunting for a dyno number.
Melting Slicks
Joined: Jan 2007
Posts: 2,633
Likes: 2
From: Evans Colorado
I've seen one dynojet read 20% higher than another. and nearly all of them read substantially higher than a superflo or mustang dyno.
The point being is you goal shouldn't necessarily be to reach 500rwhp on a dyno, but instead to be able to "run a certain ET, or a certain lap time."
A dyno is a tuning tool. The only real way to calculate power is to take the car to the track. Load over time equals power. You can make 700 hp on a dyno, but if you don't run the numbers at the track, all you end up with is a fancy piece of paper.
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
The point he was making is that dyno numbers don't really mean anything. You're well within the percentage region for different dynos in different regions and climates.
I've seen one dynojet read 20% higher than another. and nearly all of them read substantially higher than a superflo or mustang dyno.
The point being is you goal shouldn't necessarily be to reach 500rwhp on a dyno, but instead to be able to "run a certain ET, or a certain lap time."
A dyno is a tuning tool. The only real way to calculate power is to take the car to the track. Load over time equals power. You can make 700 hp on a dyno, but if you don't run the numbers at the track, all you end up with is a fancy piece of paper.
I've seen one dynojet read 20% higher than another. and nearly all of them read substantially higher than a superflo or mustang dyno.
The point being is you goal shouldn't necessarily be to reach 500rwhp on a dyno, but instead to be able to "run a certain ET, or a certain lap time."
A dyno is a tuning tool. The only real way to calculate power is to take the car to the track. Load over time equals power. You can make 700 hp on a dyno, but if you don't run the numbers at the track, all you end up with is a fancy piece of paper.
Racer
Joined: Oct 2011
Posts: 475
Likes: 3
From: Jacksonville TX
I got my vett set up this way. LG Pro Long Tube Headers with Metal Catalytic Converters, Vararam VR-SC1R, LG G6X3 Cam Kit, Spring kit, Push Rods, Cam Gear, ASP C5 Underdrive Pulley Kit, Milled Heads, LG Super Wire Kit, 410 gears with harden shafts. I do not have the dyno sheet but it does make over 500 rwhp. England Green did the 4.10 gears and half shafts and LG did the engine work and tune. The milled heads and flycut the pistons if needed should get you what you are looking for. This is just my thought. Good luck reaching your numbers and keep us updated.
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,684
From: Southeast TX
Minor stuff would help....but more cam for the win. Low 230's intake and a little more on the exhaust on a 113 to 116lsa should get you there. The cam you have is pretty mild if wanting those numbers.
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Le Mans Master
Joined: May 2011
Posts: 5,022
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From: Tampa FL (formerly Justinjor)
Tech Contributor
St. Jude Donor '11-'12-'13-'14
I'd use your ported manifold/throttle body. It has obviously proven to be just as good as the 102 given your current goals. Now if you plan on more cubes in the future, it might be beneficial to get the fast now.
That cam seems like an odd choice. Tons of overlap with a huge lsa.
UDP is a day job and imo, well worth the work. 8-10whp is 8-10whp any way you slice it.
I'd get some TR6s if you don't already have them.
You know how my car dynos and performs and I'm anxious for the cool weather to return to see what new PR I can achieve.
Congrats on the new purchase
That cam seems like an odd choice. Tons of overlap with a huge lsa.
UDP is a day job and imo, well worth the work. 8-10whp is 8-10whp any way you slice it.
I'd get some TR6s if you don't already have them.
You know how my car dynos and performs and I'm anxious for the cool weather to return to see what new PR I can achieve.
Congrats on the new purchase
Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
The first thing I'd do is dyno it on a local dyno to get a baseline there. You may find that it only makes 450ish rwhp.
You need to use the same dyno for before/after runs. You can't start with the baseline of 482 if it was dynod elsewhere. You may change the pulley and headgaskets and still end up with less than 482rwhp simply because the original dyno was generous.
You need to use the same dyno for before/after runs. You can't start with the baseline of 482 if it was dynod elsewhere. You may change the pulley and headgaskets and still end up with less than 482rwhp simply because the original dyno was generous.
Instructor
Joined: Dec 2005
Posts: 207
Likes: 0
From: fayetteville nc
The first thing I'd do is dyno it on a local dyno to get a baseline there. You may find that it only makes 450ish rwhp.
You need to use the same dyno for before/after runs. You can't start with the baseline of 482 if it was dynod elsewhere. You may change the pulley and headgaskets and still end up with less than 482rwhp simply because the original dyno was generous.
You need to use the same dyno for before/after runs. You can't start with the baseline of 482 if it was dynod elsewhere. You may change the pulley and headgaskets and still end up with less than 482rwhp simply because the original dyno was generous.
