BIRDONNOS

iTrader: (3)

well i went out and played at test and tune tuesday, i did get a new best on motor but really wasn't that impressed with the results from the cam change. my lack of shifting skill and shitty 60fts would probably make a difference lol. (need that almighty driver mod) car weighs 3510 with me in it................

new best motor pass with 242/248-110 cam (15psi in slicks and 5600rpm dump)
r/t--- .010
60ft- 1.773
330- 5.072
1/8-- 7.778
mph- 91.43
1000- 10.094
1/4--- 12.054
mph-- 115.08

best motor pass with 224/224-112 cam
r/t--- .102
60ft- 1.767
330- 5.090
1/8-- 7.824
mph- 90.62
1000- 10.166
1/4--- 12.149
mph-- 113.43

seems to me that the t-rex cam should mph higher, than my old 224.
hopefully with alittle more playing with the psi in the slicks and hooking better i can get some 11.5's to 11.6's on motor. comments and advice welcomed. a/f was locked in at 12.8 during the runs and timing was 28.5. i have the runs logged with hptuner and a wideband.

s346k

iTrader: (4)

what rpm where you shifting? was the car retuned for the trex? are you comparing apples to apples weatherwise? was the car dynoed before / after each cam?

prostock_bigblock

iTrader: (11)

need beter tune for sure, i ran a 28 of timing on a stock engine, i think u can pump that to 31* or *32, and your car is heavy to.

venom ws7

iTrader: (13)

BIRDONNOS what gears are you running? and dybo numbers before and after
the cam swap?

TeEnAgE pHeNoM

iTrader: (6)

Just goes to show you bigger isn't always better. I've seen small cammed cars run just as good as the cars with the big cams. You should be happy however because you picked up 1 tenth and 1mph 1/8th mile and 1 tenth and 2 mph in the 1/4 without a tune for that cam.

LEO

iTrader: (3)

I like being conservative with cam selections. I'd rather have a car that idles well, pull vacuum and doesn't sound like it's trying to stay alive - just to pick up 1-2 mph and a tenth or two. My 2000 MTI H/C Z28 went a (1.79 60 ft.)11.92 @ 120.X (3,520 lb) on 245/5 /16 Nitto DR with a 224/224 .561" 112 cam. Idled great and got 28 mpg on the freeway.

BADSZ28

iTrader: (39)

Ditto.

Without a tune I was trapping 118 at the same RW with the same cam. Tuned now and feels like a different car.

transam1998

iTrader: (5)

If you manage to get a 11.5 with 115mph let me know how you did it!

The Juggernaut

iTrader: (7)

run 2-3* more timing, shift it at 7000-7200.

prostock_bigblock

iTrader: (11)

Now doubt about it.

BIRDONNOS

iTrader: (3)

i was shifting around 6600 to 7000rpm, and yes the car has been retuned as i have hptuners, a/f was locked in around 12.6-12.8 thru every gear on the runs. timing is around 28.5 at WOT. i may try leaning the a/f to 13.1 on motor to see if that helps and hit it with alittle more timing. as far as the weather goes i ran the 12.149 in feb 25th of this year and the 12.054 sep 26th, i am not sure of the weather way back then but i am sure it was cooler. on the old 224 cam i put down 384.82rwhp and 383.79rwtq with the cam peaking at 5800rpm, this way thru a ford 9inch with 4.11 gears, now i have 4.30 gears with the new setup but no dyno numbers on the new combo yet.

BIRDONNOS

iTrader: (3)

as far as the idle the car idles fine with no surging and no bucking (although it took a few days to dail it in) as far as vacuum it only pulls about 10-15 vaccum at idle. (still have my boost gauge in the car, use to be procharged) as far as your 11.92@120 thats a great mph, thats what i was and still am hoping for on motor.

BIRDONNOS

iTrader: (3)

as far as mods i'll throw them out there cause i know thats part of knowing what to do next.
347 forged motor=stock crank, 6.125 eagle h-beam rods, and diamond flat top nitrous pistons.
heads are stock with patriot double springs
242/248-110 .610/.615 lift comp cam
1 3/4 hooker headers and y-pipe with a bullet turned down
stock 98 m6 tranny with a spec 5 clutch and steel flywheel
ford 9 inch with 4.30 gears and 35 spline axles with a spool
ls6 intake and ported throttle body
60 lb motoron injectors with dual 255 intank pumps
clear lid, smooh bellow
bone stock suspension and torque arm
on a 100 shot dry i did get a 11.104 with a 1.677 60ft as with my old setup i went 10.89 with a 150 dry shot, so i know there is improvement with this setup. just need to tweak at it.

i did notice with this cam and logging that i was leaving the line at around 5500-5600 and after dumping the clutch the rpms still dropped to around 3600-3700rpm. i think i will try leaving at around 6800rpm to see if that helps any. guys keep the comments and advice coming cause i sure would like to get in the 11's on motor then hit this thing with my 2 stage dry.

BIRDONNOS

iTrader: (3)

oh sorry i do have the lakewood lower control arms but thats it.

BADSZ28

iTrader: (39)

Don't even go back to the track without LCAs and TA. You are killing the hole shot with the stock parts. If something breaks more bad **** will happen.

RaNsOm

iTrader: (2)

Ive seen it, but in an automatic car.

BADSZ28

iTrader: (39)

A TA will really help. I went from 1.85 1.90s to 1.6Xs and pulling a tire with just a TA swap. That was mostly stock. Not even headers.

transam1998

iTrader: (5)

Yeah, I know, it makes me sick :-)

But I have so much fun pulling the lever

gettinthere

iTrader: (3)

Go check out Jaberwaki. He ran an 11.50 at 115.

RaNsOm

iTrader: (2)

thats the car i was talking about. He's an auto us M6'ers dont get off so easily. Hell it took me 120mph to get 11.50s