crashinaz

iTrader: (35)

First time out on MT DRs . I was a little concerned about the car hooking well because it's lowered 1.5 in front with 26s, stock height in back with 28s, has factory shocks, 3.42s and is a little chubbier up front with the iron block... I'm VERY pleased with how the car hooked... VERY. Played with some pretty conservative launch techniques and pretty much didn't learn anything because I was having too much fun sniping the full blown gutted & tubbed drag cars off the line . On the pass before I handed the car over to my wife to play with, I got the oh so sweet thump of the front tires coming back down on the track, but only 1.32'ed the 60 (likely because the temp was up 10 degrees).

The MPH is hurting and I'd guess it probably go up 5+mph if I locked the converter from around the 1000 out... Before the 1000 the car's already falling off on power noticeably... The cam is mild and the heads are just bowl blended and gasket matched 803s, so it's no mystery why the car doesn't make power up top (AFRs in the mail) . Fun though! Nice to get in the driver's seat and out from under the hood .

gator's 99TA

iTrader: (2)

incredible 60' for a 10.4 pass! what tires? 325?

earl3

Holy hell, I didn't know that was even possible. Thats an 8 second car 60'!

crashinaz

iTrader: (35)

Yep. 325's @ 19psi cold... I'm sure they aired up a little after they got warm, but I never rechecked it. It's certainly scoots out of the hole. Lowering the stall really took advantage of that low down torque. BTW - Nice car gator. I like your taste...

mrdragster1970

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Holy crap, that is a great 60' for the ET.

That beats my 160 MPH car. You are doing something right, great job.

.

XpEdItIoUs

iTrader: (44)

Mid 10's @ 124 mph

FASTFATBOY

iTrader: (23)

Yeh that car is definately laying down up top, where do you shift and how far over that is finish line rpm?


I run 11.0@124, can I have your 60ft? BINGO 10.70's he he


I dont think it is the heads at all, you have another problem of some sort. Did you datalog at all?

Your 1/8 mile et is enough to run 10.20 or 10 teens


David

crashinaz

iTrader: (35)

Thanks for the kind words!!! No data logged. I'm not POSITIVE, but I'm pretty sure it's the heads/cam. On the dyno it tells pretty much the same story and quickly stops laying power down around 5900. I'll see if I can get the dyno chart emailed to me. I don't think there's anything too odd happening, I just think the top end runs out of breath. The 1-2 / 2-3 shifts are at 6100 and the 3-4 was moved up to keep that shift event from taking place before the lights with the converter unlocked. It scoots through 1st and 2nd like a dog with a dingle berry , but the time it spends in 3rd past the HP and TQ curves is where it feels to be hurting. I look down around the 1000 and it's passing 6100, so I'm guessing I'm around 6400 through the lights. Boost seems to stay up and I'm not fuzzing the belt much if any. I really need to get the tube bender out and get the car legal, so I can get some more passes in... I could probably bust out a 6pt in a weekend, but there's no use at this point. I think the car might go 9's with a locked converter and the lower DA of night drags (DA was a little over 1700 when this pass was made)... The A pillar tubes are a PAIN to take through the dash and I'm procrastinating because of it.

Pro Stock John

iTrader: (34)

Nice 60, that must have felt pretty good.

crashinaz

iTrader: (35)

It felt so good that my foot won the inner conflict with my brain telling me to lift in order to avoid being bounced from the track... In fact, it won that conflict 3 times... Then the track official mediated the dispute .

Skinny

iTrader: (11)

Wow. Fantastic short times! What kind of suspension setup? I was about to order some ET drags for the upcoming season, but hell, I might just step back down to drag radials. Those MT's seem to be hooking for everyone!

crashinaz

iTrader: (35)

It has a good portion of the BMR book thrown at it .

BMR -

SFCs
Xtreme Trak Pak
non-adjustable tubular LCAs
single adjustable panhard
LCA relo brackets
Xtreme rear sway bar
K-member
upper and lower front control arms

I just remebered that since my wife was going to make some lazy passes, I left the front sway bar on too. So the stock front sway bar was in place.

crashinaz

iTrader: (35)

Great... Stories of inaccurate timing equipment are floating around . Looks like I'll be hitting 2 tracks this weekend to get a better sampling. FIGURES... First time out and possible bad timing equipment. *sigh* I figured the MPH (which I KNOW is accurate) for the ET justified the 60 foot. Maybe not...

02NBMWS6

iTrader: (22)

yea, that 1.274 was pretty damn hard to believe man. If that was right, that blows me away!

kp

iTrader: (34)

You know having a procharged car and doing pretty well in the 60' department myself I would have to say something was off. I out 60' a lot of low to mid 8 second cars (1.24-1.27) and while I just look at 60 foot as the first set of numbers in a pass its hard to believe your 60 foot was accurate. Typically on a 1.27 60' I run a high 3.6 330 and run 120+mph in the 1/8 mile and I make little power compared to some.

Not hating or jealous, using a simple drag race calculator if you plug your 330, 1/8 mile, and 1/4 mile ET in it comes to 1.45 or so 60 foot. So unless you let off the car at 65 feet I would suspect something was up.

Here is a real slip from a local track, best 60' I ever saw, sometimes the lights are at the wrong height and the clocks dont start until the rear tires clear, lot of things can happen. Either way the car is running well, just dont focus too much on the 60 foot right now..

crashinaz

iTrader: (35)

Yeah, I'm over it... This is my first auto drag car and it's launches so much harder than everything I've raced before, that I really have nothing to compare it to. Guess I'm a little naive to assume it was true. We'll get some more passes in this weekend and see what the real story is. My logic behind it is below... Oh well... It's still pretty fun to drive.

In mid December I ran the car at Firebird Friday night (December 14) and Speedworld Saturday night on 315/35/18 BFG drag radials. Firebird with hardly any traction, it ran 11.74@122.xx with a 1.9x 60. Only made 2 passes, but they were similar. I hit Speedworld the night after (December 15) and got a little more comfortable with driving through the wheelspin and ran a 11.6x at 124.xx with another 1.9x 60 foot. I only got 1 pass in before it pushed the seal around the knock sensor out and got oily .

SO… I fixed the seal, put a huge breather on the car, changed the wheel studs, set the pinion angle a little steeper and installed Bogarts/MT DRs and hit Speedworld this weekend. First pass was my best, but it was also when the car and weather were the coolest (I waited about 45 min to an hour in between passes). 10.42@124 with the 1.274 60 foot… I guess to me personally, the numbers seem to jive… Same trap, .6x to .7x better 60 foot and 1.2 to 1.4 better ET…

kp

iTrader: (34)

All you can do is try it again, either way you have the timeslip and thats what the car ran

Pro Stock John

iTrader: (34)

Yeah I would run again, and compare.

On a different note if your car is laying down up top might be lean, belt slip, or valve float, or something else.

crashinaz

iTrader: (35)

It ran a level 11.5 AFR on the dyno with 8 rib belt strung like a guitar string. It gets to 5900 and the power drops off quickly... FP stays up, AFR stays safe, boost stays up... It just throws it's napkin on the dinner table and goes to watch TV much past 6100 .

Thanks for the input guys.

Pro Stock John

iTrader: (34)

How heavy is your raceweight?