blackz93

iTrader: (2)

At your weight, and with an auto, I think low 7s at 99 is about right. Need to find out what's holding back your power.

blue00ZZleeper

iTrader: (5)

We ran on the highway yesterday, His car pulls better then 470...we left at about 50ish...my M6 in 2nd and his auto in 3rd i believe and he wasnt far behind me untill about mid 3rd

tomz28

iTrader: (20)

and i killed both of you LOL
but really the car moves im thinking trans at this point and it was alot of fun the other night with all 3 of us on the road

blue00ZZleeper

iTrader: (5)

Kill is a little much...the other night when we ran I stuck to your dented/dirty door lol...then you start walking

Phat69

umm I hope this is a typo

SD99TA214

iTrader: (27)

ok heres a better question.

what am i missing to make 600 rwhp?........no enablers just parts!

A pt88?

a solid roller cam?

AFR heads?

my point!!!!!!! if i got those i should be in the 800's!!!!!

Am i just crazy?

Navy David SS

iTrader: (13)

IMO you are choking the **** out of your engine. The LS1 intake is crap in the 1st place. Even NA cars pick up a ton of HP when they switch even to the LS6 intake. The cam is not "big" enough for a 408. Heads are another area you need to look at. We have a twin 67 Vete that comes to the shop. Almost 900rwhp with a 383 LS2. Whose doing your tuning?

With a 408 - a good set of heads, cam and intake should take you close to 500rwhp. Add the tubo and 700+ should not be a problem. Your exhaust set-up is not very good either - have you tried the truck manifold set-up?

Good luck - getting HP out of a turbo is not cheap.

David

1320

iTrader: (6)

A different dyno. The point is that the number put out is worthless, its a tuning device, nothing more. In my city , I could see at much as 100% difference in dynos. Thats right, 600 on one is 1200 on another. Of course every shop will argue to the death that their numbers are true. This is how we get 1500 rwhp corvettes with ls1 blocks and cathedral port heads with 8 72 lb hr injectors.

To me a much bigger issue is the car set up. You might find a couple mph and lower ets with no more power. 99 in the 8th is pretty good and obviously the 470 number doesnt support what you know it runs at its weight.

So whats right the et you know it runs, and the weight you know, or the calculated number from some IT guys that most likely dont know cam from driveshaft.

black98ws6ta

iTrader: (77)

Ultimately you are pissing in the wind with a stock transmission, especially when you know that it does slip. After you get that fixed I would double check over everything, make sure there are no exhaust or intake leak's. If you are looking for dyno number's then get back on the dyno with the added timing and new tranny and see what it looks like.

However, we know that the car run's better then the dyno show's. So in the future dont worry about comparing dyno number's to other's just take it to the track and see what it does there.

That turbo kit is not the best in the world. I have personally made 570 rwhp through a 6 speed, with a t76, on a stock motor, with valvesprings only, at 11 psi. The car went high 6's and 10's at 102 and 130. You have a lower compression motor, on a few more lbs of boost, and larger displacement which almost hurts more then it help's with the restrictive turbo kit. You could turn up the boost alittle more.



If you do that all that and your still not happy. You can run a new kit, or go to cutting on your current kit and fit a tangential housed turbo on there and that will help with backpressure some.

SD99TA214

iTrader: (27)

i think the p trim exaust wheel isnt helping either.

You can only force so much Hp worth of exaust through a 2.5 inch outlet.

Maybe it is time for a truck kit

but i do love my a/c

SD99TA214

iTrader: (27)

its stock = 364ci

I know , but when i can jump on the same dyno behind my buddys aps car with a stock ls1 and 317s on less boost making 570 and i cant hit 500 with more motor and more cam , the dyno is still a "measurement tool"

its measuring his car making way effin more power then me

SD99TA214

iTrader: (27)

Both of you playd catch up when we hit them "me at the bottom of 3rd"

thats what sucked, id jump you then have to stretch 3rd out while you guys got too catch 3 gears all while pulling back up and passing me because i couldnt and wont go to overdrive under boost

But ya, you guys got me on the roll racing stuff, but we ll see how yall fair at the track fri night

Ryne @ CMS

iTrader: (10)

i'll smoke all three of you from a roll, and a dig for that matter, in my little NA beast

98Camarod

iTrader: (43)

I must have missed the ls1 intake part. That's a pretty big limiter there

tomz28

iTrader: (20)

hey ryne you going racing friday? i heard you guys had a good time at the track

and your na beast is not little LOL 427 to 346 i need all the help i can get but im down for some track stuff this week end

52172

iTrader: (2)

what kind of comment is that? Time for more studying!! Ditch the ls1 manifold and get an ls6. Timing can go up to 16 degrees.

blue00ZZleeper

iTrader: (5)

A little more boost and meth/I'm ordering my rearend this week is going to make my car a little more to contend with...and dam your ZO6!..whats going on this weekend?

Navy David SS

iTrader: (13)

OK its 364ci. Still for a 6.0 the intake, heads and cam are not what you are looking for.

Is money a limiter? If so, you can still upgrade one item at time.

1) At least an LS6 intake (bet you can get one for cheap in the For Sale Section)
2) Reverse truck manifolds (cheap - usually about $50 for a used pair)
3) Cam (go much bigger -- 250/610/114)
4) Heads (if you can afford them - get the AFR 225's)
5) Get it tuned by a professional turbo guy
6) I can respect wanted to keep it stock looking but surely you can loose some weight - take all the crap out of the car - spare, boom box, etc

I'll bet you'll be in the mid-low 11's - can't remember you tires or suspension set-up - but you may need to look at those items also.

You can still have a daily driver, looks great and run 11's without any problems.

David

Modern_Muscle

iTrader: (11)

I also agree the LS1 intake has to be at least one of the limiting factors.

I just have an LS6 on mine for now, and the next is a sheetmetal intake or a Vic Jr setup.

The tune could be the solution to the whole problem.
A friend had a lightning with a built motor and the same problem, re-tuned it and it gained a LOT.

a few degrees in timing can result in nice gains.

You seem really caught up on the dyno. If it runs better than the apparent power it put down, why worry? I mean, yes, it can be disconcerting to see those numbers, but think about how disconcerting it is to the people you beat showing a higher dyno pull

Like Navy said...with the right tune it can be a DD.

I DD mine, and am out of boost the whole time I drive it with great MPG's.

SD99TA214

iTrader: (27)

Um we playd that game last fri you ran one thousandth of a second faster then me , WITH my car NOT hitting 3rd gear...but you still LOST cuz you REDLITE!!!!

Come on people ona turbo car an ls1 to a ls6 wont make a dime in power. the air is getting forced in there , no more differance there is between the intakes.

im gona try a few tricks and i get back at ya!