janaka

iTrader: (7)

well I had my Datsun dyno'd at a GM show-n-shine (mobile dynojet)
No prep to the car as I wasn't expecting to make pulls but I did after some poking by my club that was there with me.
anyway
'00 LS1- 40k miles-
224/224 .567" 114+4 cam (w/supporting 918's, hardened PR's)
LS6 intake
hugger headers (only headers that will fit engine bay)
2.5" off collectors to 3" back (!cats !res)
Pulled 335RWHP and 331ft/lb and then 338/325

This car in its one track appearance ran a 12.80 @111.25

Peak HP was at arond 6500rpm
Torque was at/over 300 lb/ft from 3200RPM till almost 6k

What is my next best mod to get me some more power?
I've got about another $1200 or so that I can put into the car for this summer

Sales2@Texas-speed

iTrader: (5)

Do you have the graph by chance? Between the peak dyno numbers you listed and the mph on that track run, I feel like you're missing some power with the combo you've got. Is the tune dialed in? What heads are on the engine? Any data logs to share by chance?

With $1200 you could get into a pair of the PRC Stage 2.5 5.3L heads to get a bump in compression and better airflow. We've got a sale going on them currently in the sponsor's sale section and they average about a 35-40rwhp gains on cars with similar mods to what you've got.

But let us know some of the info I asked about above. I really think there's more power left on the table with what you've got now.

s346k

iTrader: (4)

i think that car needs a professional tune.

it should easily trap 115 with a stock ls1 in it, manifolds and all. adding a cam and headers, i would expect 120+mph and somewhere around 380-390 whp.

janaka

iTrader: (7)

I'll scan the graph tonight and post it up. Its been tuned but most likely isn't maximizing everything thats there. I don't know of any LS1 specific tuners where I am. I will see what head castings I have when I get home. I will be doing some scanning of the car tonight with a friends laptop. I will see if I can get him to send me a copy of the data to share.

whitew01ws6

iTrader: (12)

i mean i dynoed 336 on a dyno jet with almost full bolt ons and am about to install basically the same cam, somethins def a lil funny

johnLs1camaro

iTrader: (28)

yeah i would for sure get a good tune...has it been tuned yet????auto or m6?

pasbonsimon

iTrader: (12)

even a base tune with that cam/headers/LS6 intake should net 360RWHP+

get that car to a Professional tuner who can do a wideband tune, expect to spend $350-500 for a dyno tune.
If you don't have it already a ported stock throttle body $150 and a nice flowing airfilter
After a professional tune expect 375-395RWHP with your mods through a T56
your trap speed should go up a good bit as well.

If you put another set of heads on the car you will still need a professional tune

janaka

iTrader: (7)

its an M6. it hasn't been professionally tuned yet. I guess the next step is to find someone to do a good tune on the car that is familiar with cam'd lsx's
I'll hold off on heads for now till I get this part sorted out and happy with this combo and save for a nice set of AFR's or something like that to make it really worth while.

Thanks for the input guys. Will report once I find time to get the car to the tuner.

Jason

primer84z

iTrader: (7)

^^ Agree with the tune being an issue here. Most bolt on cars dyno higher than that with a stock cam.