Well after having poor results with my mail order tune i went to see Clint at American Intense Racing in Denver (arvada) and picked up quite a bit of power. The mail order tune was super lean with 16ish afr's.

After 6 pulls the car stopped making more power at 363/352 corrected for elevation. I was seriously hoping for more after all the good things i have heard about these cams.

Setup as follows:
2002 ls1/t56
EPS custom grind 226/230 .589 lift
pac 1218 springs
long tube heads
3in merged into single 3 catback with magna flow cat and muffler.

**** how do post the pic from FB?

 

Screw the dyno numbers! Go race it against other cars and at the track, and then you will really know

 

Haha oh i had a little on the way home but that is the reason i finally went for a good tune. It was pathetic 14.5 @99.5 mph DA of 5200ft…so guess its time to go back.

 

I was also at about 365rwhp cam only. Then I added prc 2.5 5.3 heads with a underdrive pulley and it threw down 425rwhp.

 

I just hoped a $500 cam would yield better results…
would any inexpensive mods help wake this combo up more?

 

Idk how accurate "corrected for elevation" really is, so you can't judge and compare your numbers with others that are actually dyno testing their cars at sea level.

Also that 3" single is not helping you much. You really need a nice 2.5" dual at the very least.

What size are your headers?

 

Honestly your numbers are inline. I got 400whp and I had ported heads and similar EPS cam. Also in an E36. You will need heads and new intake manifold to go over 400whp on a LS1. Most swap headers on e36's are not ideal, none are equal length and are not optimized.

 

decent numbers for cam only, could be a stingy dyno too...if you're looking for more power with inexpensive mods, I would say get an underdrive pulley and a ported & bypassed throttle body to start...should run you about $300 and get you 370-380whp range...to really compliment that cam, you'll have to spend the money and go with a set of ported/aftermarket heads

 

Sorry, forgot to mention already have a POTZ TB.

 

My WS6 made 355 on a dyno jet with just a lid and mac headers and y pipe. Then it went 12.40s @114 on stock tires at full weight. Dont get bummed about the dyno numbers until you go to the track.
Cool car BTW.

 

Update:
Finally ran it against another lsx that could baseline with.
2005 z06 bone stock, from a roll pulls about a half car by 90mph.

We both think there is HP left on the table, just not sure where: tuning, exhaust, intake etc.
1. The car does have a not so perfect exhaust like previously said but doubt its that bad. I dont have emissions where i live so i cold go straight pipe but i prefer to have the cat.

2. Intake is a simple in-engine bay intake elbow so i doubt IAT's are great but i did use silicone to try and keep temps down....

3. tuning, need to data log but im confident in my tuner as he is well reputed in the lsx industry.

4. my theory: flat spotted camshaft.
Since this was my first swap it wook a couple tries to get the engine started. Once it did i ran it for about 30 seconds a couple times. Then got it to operating temp twice and shut it down. Some revs but nothing much during this time. The sump was full with new dino 5w-30. And oil pressure was good.

So where would you begin to find some "lost" hp?

 

I don't mean to get off the topic here but they didn't make a 05 Z06. I'm assuming you meant 04 Z06. You wouldn't have a chance against an 06 or newer Z06.

 

yes 2004 c5 z06.

 

Post some exhaust pictures. Looks to me that there's quite a bit to be gained with both intake and exhaust changes. What's the diameter on the intake tube? When you say 3" single exhaust pipe, what kind of crossover/merge are you using?

Are you open to trying to fab an OTR type intake? That could be huge in and of itself.

 

Exhaust is choking it

I'm assuming that car has IRS?

intake charge is likely very warm (mine does the same thing)

that cam is still on the mild side

the dyno could just be stingy...I've seen dynojets read as much as 40rwhp low from other dynojets

you are at least in the ballpark now compared to where you were before

 

T-man: Whats an OTR tyoe intake?
I did use silicon tubing to try and bring down the temp but it is still right behind the radiator. When do intake temps come into play?
Exhaust:
Im using a magnaflow merge collector, dual 3" into single 3". It was all that i could afford to fit at the time. The car is IRS so space is limited. i could possibly fit a single 4 or duals but fab price would skyrocket. The tuner didnt think i was losing too much with the exhaust, maybe 10 rwhp.
I do have a single 3" magnaflow cat in after the merge, how detrimental is that?

 

I agree , forget the dyno numbers.

I have a 227/234 with a dual 3" system , X pipe, 100cell magnaflow bullet cats, over radiator air intake (that sucks in air like none other that I have used before) and it span up 359rwhp on dynamics dyno.

I then added cnc ported / hand finished heads , tune was tweaked on the same dyno and it spun out 373rwhp.

I expected at least 400rwhp but I'll take it down the qtr mile soon and see what it does.

Had a rolling run last week with a 2012 Porsche 911 Carrera S , from 40km/h rolling I ate him , from standing start at lights he had me in first and second as i couldn't find traction , but caught him by third.