Something has got to be wrong with my HP!
Thread Starter
12 Second Club
Joined: Jun 2011
Posts: 78
Likes: 0
From: your mums house
Something has got to be wrong with my HP! Im just really curious... me and a couple buddies have been talking about the power my car makes... on a DynoJet made 437whp and 410wtq, on a Dynomite it made 404whp and 407wtq...
either way, I have no idea what tune is in the car... but with the list of parts i have, theyre the most hp gaining parts for an LS1!
SLP lid
LS6 Intake
AFR 205 heads
SVO injectors
QTP longtube headers/straight piped
and a custom cam
In: 279, Ex: 283 degrees
In: 0.591, Ex 0.598" lift
LCA: 114
ICL: 110
Preload: 0.005"
I only run 94 octane
I would think Id be making much more hp to the wheels. It really bothers me... just want to know from all you guys with LS experience, does this seem correct to you? or should I take it somewhere with HP tuners and get a good tune? I got 3.23 gears aswell, bought 3.90s that Ill put in over winter or something.
either way, I have no idea what tune is in the car... but with the list of parts i have, theyre the most hp gaining parts for an LS1!
SLP lid
LS6 Intake
AFR 205 heads
SVO injectors
QTP longtube headers/straight piped
and a custom cam
In: 279, Ex: 283 degrees
In: 0.591, Ex 0.598" lift
LCA: 114
ICL: 110
Preload: 0.005"
I only run 94 octane
I would think Id be making much more hp to the wheels. It really bothers me... just want to know from all you guys with LS experience, does this seem correct to you? or should I take it somewhere with HP tuners and get a good tune? I got 3.23 gears aswell, bought 3.90s that Ill put in over winter or something.
Thread Starter
12 Second Club
Joined: Jun 2011
Posts: 78
Likes: 0
From: your mums house
those are the specs the original owner told me.
Its a 6 speed, also, the original owner had HPTuners, and put his own tune in it. I have two graphs from two different dynos with basically the exact same power curve. Not sure what the AFR is on either dyno runs... on the dynomite (a friends dyno) we left the AFR out cause usually it costs extra (and he said if i made over 400whp hell give me the pulls for free), but the tank was low on gas when i brought it to the shop (i didnt plan on dynoing it) and the dyno is above ground so youre back end is sitting up on an angle, I was wondering if maybe the gas was at the front of the tank causing it to be lean? which may explain the huge difference in numbers between the two dynos?
anyways, on the second pull we hooked up the wideband, and it was idling at 19, so we decided we arent going to do another pull without getting gas first. we never ended up doing another one anyways, but i was disappointed with those numbers. and still not satisfied with the original numbers from the previous owner.... but heres the graph he gave me that he dynoed last year or soemthing. Only difference between then and now is there were cats on it then.
Anyone know of a place in southern Ontario to get a tune? A well known shop is preffered
thanks for all the input guys, the numbers were bothering me.
Its a 6 speed, also, the original owner had HPTuners, and put his own tune in it. I have two graphs from two different dynos with basically the exact same power curve. Not sure what the AFR is on either dyno runs... on the dynomite (a friends dyno) we left the AFR out cause usually it costs extra (and he said if i made over 400whp hell give me the pulls for free), but the tank was low on gas when i brought it to the shop (i didnt plan on dynoing it) and the dyno is above ground so youre back end is sitting up on an angle, I was wondering if maybe the gas was at the front of the tank causing it to be lean? which may explain the huge difference in numbers between the two dynos?
anyways, on the second pull we hooked up the wideband, and it was idling at 19, so we decided we arent going to do another pull without getting gas first. we never ended up doing another one anyways, but i was disappointed with those numbers. and still not satisfied with the original numbers from the previous owner.... but heres the graph he gave me that he dynoed last year or soemthing. Only difference between then and now is there were cats on it then.
Anyone know of a place in southern Ontario to get a tune? A well known shop is preffered
thanks for all the input guys, the numbers were bothering me.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
12 Second Club
Joined: Jun 2011
Posts: 78
Likes: 0
From: your mums house
thats what Im saying thunderstruck... I think im going to take it somewhere and get a tune, once my 3.90 is in and my new exhaust... the one thats on it is falling apart (**** welding)... any ideas what kind of power i SHOULD be seeing?
looks right to me,all dynoes read differently,so you cant compare.Go to the track to get some real info about the power your making.If you can break 120mph then your doing good
Staging Lane
Joined: Dec 2005
Posts: 86
Likes: 0
From: Portland, Oregon
clean dyno pull really speaks volumes about a generally good tune. knowing that it's a home tune you should put the wideband on it and verify you aren't going too rich and that your timing is properly setup to make the most power. otherwise it looks to be a good bit of parts making around the power you would expect it to make.
did you monitor you Air fuel ratios? Different types of dynometers read really differently and their correction factors may vary alot. Dynojets tend to read the highest. For consistency, why not do a couple runs on a dynojet again. you will see that you didnt really loose any power, given that your car is in the same running condition as before.
The people making the 450+ are most likely runnng a fast intake and not a ls6. A ported fast you would gain 15+ hp most likely. Your 437 number seems inline with a ls6.
As far as the differences between the two times you dyno'd could easily be the different types of dynos, different days and other various things. Dont worry about the differences.
As far as the differences between the two times you dyno'd could easily be the different types of dynos, different days and other various things. Dont worry about the differences.
