s-10ls1

iTrader: (4)

well i have to say i am not that happy with my dyno numbers. dont get me wrong my truck runs pretty strong but just not happy with the numbers! here's a list of mods, tell me what you think!
well start it off th motor is a 2000 ls1
tsp stage 2.5, 5.3L head
prc .650 springs
ms3 cam 237/242,.603/.609, 113 LSA
ls6 intake
stock t/b ported and polished
42# injectors
85mm maf sensor
k&n air filter
msd wires
new hotter spark plugs
under drive pully
also i dont have power steering
shorty headers 1"5/8
true dual with high flow cats
slp loudmouth resonators
built trans stage 3 from century
3,600 converter
built 10bolt rear end with 4:10 gears

so that is the list of mods!
i know my billet wheels hurt me on the dyno and also the converter. what i think its really killing my numbers is my headers!!!


dyno # 364.39 rwhp and 307.93 torque

it just dont add up!!!!
can someone give me some help! tell me what i am going wrong or what i need to change!

if you dont know what your talking about plzzzzz dont post! lol

westtexasbuff

iTrader: (40)

Cut the cats, get some 1 7/8 headers, and a reputable shop to re-tune your car. You're in Houston... GForce, or LMR. Definitely doesn't add up... Something is wrong.

What timing are you running at WOT?

brian_rs/ss

i'de say the intake and exhaust are choking you. get a FAST and full length headers w/o cats. that ms3 needs to breathe.


btw what brand MAF are you running? you might consider a 100mm MAF or possibly an SD tune.


and if we could see a dyno chart with the air/fuel that might answer something.


i definitely agree with the tuner suggestion...i've heard some pretty retarded stories about tuners who don't know what they are doing. and is it just me or does it sound like he let off at like 5,000-5,500 rpm? you should be at least spinning up to like 6,300.

s-10ls1

iTrader: (4)

i am going to keep the cat. i know 1 7/8 would help out alot. i belive my tune is good,
what does wot mean?

brian_rs/ss

wot-wide open throttle.

s-10ls1

iTrader: (4)

i thought the ls6 intake would be good enough. i know the exhaust is killing me. i am keeping my cats for emissions. i am looking into getting some 1 3/4 long tub headers
maf is the one off of a truck with 5 prong. the same as a vette
my dyno chart does not have the air/fuel on it

brian_rs/ss

the ls6 is most deffinately not good enough. but you should still see better numbers...i'de say you are damn near 100 hp short.

i have a baby cam and stock 799 heads with an ls6 intake and i am making just shy of 400 rwhp.

whitehooptie

iTrader: (2)

compression check.........

My mothers 100k mile 02 WS6 with bolt ons and a cam make 436 to the ground.

5w20

iTrader: (21)

Do a leakdown and compression test, hurt engines won't produce great numbers. Its free to check, I would do that before your start spending money on random ****.

s-10ls1

iTrader: (4)

yeah a 100 shot is what i have been thinking!

on the dyno sheet it shows he ran it up to 6,300 rpms

well i guess ill add a fast intake and t/b on my to do list. with my long tube headers

s-10ls1

iTrader: (4)

thanks man, ill check that for sure!

Bad Chad

iTrader: (94)

Have you taken it to the track yet? Dyno's are nothing more than a tuning tool.

There is a lot of things that can produce a low dyno number. Do you have the flow numbers on the heads? If they are not ported right it could be hurting you there.

I have a cam and intake only LS1 in my Mustang and it went an 11.50 last Sunday. I have yet to put it on the dyno

jaysan

iTrader: (8)

wot is that haha

Carter01

iTrader: (11)

Your combo is a well proven 400+ rwhp. The parts you have listed are solid pieces. Now you need to start with the process of elimination.

1. Compression check as mentioned
2. A FAST will help but not needed to reach well over 400+
3. LTs will help but are not your problem
4. High Flow cats for me was worth 10 rwhp after taking them off
5. Hotter plugs? Go to NGK.com and research there site. Generally you want to go to a colder plug when hp goes up, the colder plug helps pull heat out of the cylinder. too hot or too cold is not good, research until you find what your motor likes.
6. I know you think your tune is solid but don't count it out. Simply find a fellow member that has a good tuning rep, email him/her a copy of the tune and let them look over it. The top dogs will find a glitch in minutes if there is one.
7. If you have easy access back to the dyno and tuner I would throw the stock MAF back on and see how it does.

There are several members going 9s on stock parts so don't dismiss the reliability of OEM stuff. Matter of fact MightyMouse is running a stock ls6 intake and he goes 8s, granted he is FI but still...

Turbo_Stang

iTrader: (3)

Needs more Turbo

s-10ls1

iTrader: (4)

i have taken it the track but just 1/8 mile. i am really south of houston and just not made it to a 1/4 mile track. but i just pick up a car hauler and ill hit up the 1/4 mile soon. but in the 1/8 i ran 7.94 what my best time. i was on 26 inch et streets with drag lites

man i am not sure on the flow of the heads. i belive the flow over 300 cfm at 600 lift.

Sales4@Texas-Speed

iTrader: (4)

If you can post up a dyno graph so we can see what it looked like that would be a great help. The MS3 does not peak power until 6500 RPM so it needs to be pulled higher. It does need long tubes, I would expect a healthy pick up from doing that. Do you know if the dyno was done with the converter locked or unlocked? You dont have to have a FAST intake to make decent power. The headers would be more important in my opinion. Also, what kind of timing and air to fuel ratio are you running at WOT?

s-10ls1

iTrader: (4)

yeah i am going to do a compression check. i have ngk plugs but need to check to what ones i have. i have been wanting my tune to check. lmr is 500 to get a tune. i had a slp 85mm maf but the gut that does my tune said there hard to tune with. i was thinking the ls6 was good intake

s-10ls1

iTrader: (4)

true lol

NastyC6

iTrader: (77)

Put some NGK's tr-6 plugs in it,open the headers,n go to a different tuner.for sure check the comp. is the cam degreed? i just finished a truck for a customer.stock 6.0,stock 243's,big cam,little less duration than your's.in the 230's.trucks are heavy.we went with the TBSS intake n 90mm tb. 3600 stall also,my built 4l60. made 440rwhp. so your way off,i figure you should atleast be 400rw ? with the ls1. i say check your cam timing,compression,open the headers,get tr6's.switch tuners if he dont know this. good luck n keep us posted.