domestic_rice

Is it just me or do all of their dyno graphs have cars that hit peak hp low and then fall on their face? I always thought the point of getting cams were to make more power for longer or at least higher up so you can rev it out. From the looks of it they are running stock ls cams...

Or is it just because if you rev a motor higher with the same amount of torque it will make less whp? I've only run a few b18b's. Mine right now is running stock ls cams with a sc6176 and I'm only reving to 7.5k and I make power all the way til redline. From 5.5k to 7.5k it goes up and down about 5whp but loses about 40wtq. I'm just trying to figure out why all of my graphs have looked different than all of theirs. Their dyno sheets look like they are running small *** turbos with stock cams. Even though they are making 500whp at 6.5k they drop to 300whp by 8k. I just don't get it. Hopefully someone can lay it out for me so I can actually understand.

I'm getting my car re-tuned next week w/ the stock head. I'm looking for 440-450whp and 380-400wtq. But I hate having a short *** power band. Which why I was looking to buy the 402t's but from what everyone has said are **** especially after the post up top. So I'm looking to get the 404's (my first choice) or the JG's that everyone speaks so highly of. The thing is, looking at their dyno's compared to mine or crowers they just don't look good to me. If I'm wrong let me know. I'm going to be ordering the crower's after I get the car re-tuned on s300. And I just dont want to do what I normally do. Spend a ton of money and time and gain 3whp and hurt driveability.

noboostedEGo

as soon as i saw this thread title i thought "404's!!!!"

i had em in my 10.4:1 ls-t. i even would only rev to 7200 cause i was on stock ls rods/rodbolts.

and i definately did not have a compromised powerband. but when it hit boost it flewww.

needless to say, it was REALLY hard to only rev to 72...

if i build another ls, it will have 404s

teggyluva90

this thread is old but hey i had the same questions and 95B18bturbo commented here.

LightningTeg

If you want to make power, 404s hands down

Hidenplanvew

type r and gsr are the same oil pumps, after 96 it dosent matter anyways...

Turbo-LS

iTrader: (4)

Teggyluva90 - 402t's will have a stock like graph read out but will give you an extra 800-1000rpm of powerband. the 404's will give minimal gains down low but have great mid range and high end performance. I've seen both work and also th jg303's work in my old setup. i ran crower 402t's and then the jg303's. the 303's picked up a lot up top and lost some low end. They are very similar to the performance of the 404's and crower is still in business. I can get the jg303's made but either one will do well

NewKlear

BUMP !! I just made 545whp on 402t Brian crowers and it feels like something is holding it back for some reason...

Turbo-LS

iTrader: (4)

Yeah it's the cams most likely. The crower turbo cams are better suited for 400 hp range are adding to stock powerband location plus giving done extra rpm but when making that kind of power you need something with more duration to carry the power longer

NewKlear

The crank pulley bolt loosened up on me thank god I caught it, but because of that I now have to drop the tranny and check the flywheel bolts and make sure they didn't loosened up either. I was reving to 7k but Im a go back and rev a little higher....

Turbo-LS

iTrader: (4)

Those cams should hold power to 7500-7600

LightningTeg

I made the numbers in my sig on 404's, unported PR4 head and E85. They are some solid cams. Havent messed with the timing on them at all but Im sure moving the powerband up a little higher would net some hp.

NewKlear

How much are 404's are going for now a days??

Tyconway

what turbo are you using?

Turbo-LS

iTrader: (4)

He's running an STC reaper I believe

LightningTeg

It was an SC6152e that was retrofitted with the STC Reaper compressor wheel.

Turbo-LS

iTrader: (4)

Damn your doing that power on an. E cover ?

LightningTeg

TheShodan

iTrader: (14)

wantboost

iTrader: (2)

404s have a shitload of overlap (it was designed as an NA cam afterall) that you'd have to dial out to make decent power.. but at 500hp you're really at the limit of most "shelf" cam options for an LS, since most companies put their time into vtec cams.. might be time to go custom. Crower will make a custom profile IIRC but it isn't cheap.

user DDTECH on here makes custom cams, if you haven't already it might be time to contact him and see what sort of mad professor insight he has on a cam profile for your power, rpm range and purpose of the car

DDTECH

I love the support from guys like you on this board, its what helps me keep going to provide better, and more affordable products that are dependable.

If you need some help with cam profiling or design, or need insight on which way to go, you can contact me here, or my cell and email are listed on my website.

From alot of testing I've found that different profile or combos of cams will produce a more, useable powerband for a street car.. you dont really have to stick to one set, the 404's are big, but if you were to do something like a 404 intake and a 403 exh, or a 403 intake and 404 exh, you'd probably have better luck.

wantboost

iTrader: (2)

I've seen how you support your customers no matter what. I've seen you place a high priority on customer service and satisfaction. Which is why I'm glad guys like you are in the industry as opposed to major companies who care about the bottom line

If my pockets were a little greener than they are now I'd buy a set of cams from you even knowing what a great camshaft the GSC T1s are

90daluv

I want to run stock b18b bottom end with built head with a t3/t4 57trim. Do you guys think the 402t will do the trick? Looking to get 320-340 whp on like 10-12 psi. The head won't be pnp and the car will be sorta daily driven for now. What do you guys think about crane cams? I seen this and it put a smile on my face.

http://www.evans-tuning.com/dynos/20...t-335whp260tq/

TheShodan

iTrader: (14)

it'll take a bit over 15psi to do that.. Jeff's dyno always did read a little high, and that person was using a GT3076R. Different animal entirely do to its wonderfully efficient exhaust wheel different from the one used on a 57trim

90daluv

so I guess I'm be better off getting the 404's with my setup ? I'm also going to be running evo9 injectors 3 inch dp and exhaust, blox intake manifold and 2.5 inch piping. With a log manifold also I think the manifold might hold me back though.

LightningTeg

No the 402ts will get you around there probably with 13-14 lbs