Bloody Drag Racing.

[Bass Junky]

Hey ppls.

Well, here's the story.

First time out, ran a best of 13.4 at 106mph.

No Major mods, stock clutch, stock turbo, computer, etc. etc. About 160 odd rwkw

Only mods were king springs and koni adjustables at the softest setting.

Hooked up to a 1.9 60ft. No Axel tramp, all good.

Next time out, new mods were Ogura Lightweight Flywheel, HKS Front Mount. 165 odd rwkw.

Couldn't better a 14.4 at some lowly mph.

Axel tramp to the shithouse, shuddering through gear changes etc. etc. about

Last night, new mods include PowerFC, bit more boost, etc etc 200 rwkw. Pineapples set to drag, Camber and alignment kit.

Again had problems getting it off the line, and through the gears.

Would either spin em up on the line and then have reasonable changes, or it would get off the line okay, and then when changing gears (esp into 2nd) it would break into axel tramp and bounce it's way down the strip.

Best time of 13.9 at 101 mph. This was with a long cool down (about 45minutes) and a good launch.

2.219 60ft (Crappy I know)

9.052 660 ft @ 80.68

13.926 @ 101.07 at 1/4 Mile.

$1000s of dollars to go slower! ARGH!

Why oh why?

I have wider tyres now, but no that hasn't helped.

My theory is that with the lightweight flywheel the car is too keen to spin en up and at I change into second, it break traction and bounces away.

Also, I noticed that when changing gears, unless I really really rushed it that the car would jerk back as I let the clutch out and put the foot down again. Again, I think that the flywheel is the culprit as there isn't as much inertia to keep the engine going and get that little jolt of forward motion as the clutch comes out.

Why couldn't I crack the 12s... I so wanna crack the 12s

Any ideas???

Do all you drag racers run light weight flywheels??

BASS OUT

[7heavn]

your 60ft's suck

Maybe try lowering your tyre pressure . When you mod your car the charactaristics change alot and how you got off the line before might not be the best way this time . Practice practice practice starting by dumping at say 3500rpm's and work your way up the rev range untill the 60ft's drop . You may find that you need to ride the clutch alittle off the line for the best results and that may require a totally differen't rpm then when just side stepping , it's all about trial and error .

[2rismo]

Do all you drag racers run light weight flywheels??

Absolutely not! Terrible idea. Sorry mate.

$1000s of dollars to go slower! ARGH!

Sorry again but that's sometimes how it is. Buy tyres.

Adrian

[2rismo]

your 60ft's suck

Not bad for a newby with crap tyres though. Nice words of encouragement.

Adrian

[brett33]

If axle tramp is your killer try uping the damper rate on the shocks man.

[7heavn]

hahaha yeh I didn't want it to come arcross as harsh was a last minute post . I've done worse in a 2wd car out at the creek so don't feel bad 2.260ft isn't all that bad for 2wd on street rubber but if you can get it down to 1.9 then thats about the best you could hope for on street tyres.

But then again hey all this advice is coming from a GTR owner us guys don't have any probs with 60ft'ers just everything else

[2rismo]

But then again hey all this advice is coming from a GTR owner us guys don't have any probs with 60ft'ers just everything else  

You'd better be running 1.6's then I imagine you are...

Adrian

[7heavn]

nar your a 10th off . Hopefully next time out might be able to see some 1.6's .

[Fitzpatrick Speed Works]

15 or 16 inch rims with a good sticky high sidewall tyre, on low pressure.

[2rismo]

nar your a 10th off . Hopefully next time out  might be able to see some 1.6's .

Kewl but

But then again hey all this advice is coming from a GTR owner us guys don't have any probs with 60ft'ers just everything else

This little RWD chicken runs 1.6's. Then again, hey all this advice is coming from a lowly gts-t owner, us guys don't have any probs with 60ft'ers

Adrian

[7heavn]

Kewl but

This little RWD chicken runs 1.6's.  Then again, hey all this advice is coming from a lowly gts-t owner, us guys don't have any probs with 60ft'ers

Adrian

Hahaha Adrian you've got it made in the shade

Brett

[ferni]

106mph with 160rwkw stock turbo!! thats pretty impressive... are you sure there was nothing wrong with the timing/spedo gear that night the drags?

[Mik]

106mph with 160rwkw stock turbo!! thats pretty impressive... are you sure there was nothing wrong with the timing/spedo gear that night the drags?

That's exactly what I was thinking

[benm]

Me too, I'd be happy with 106mph (or a 13.4sec) from 200rwkw on a std turbo, quit ya whinging

Edit: Also, I think this is another case of The Meaning Of Frustration

[Bass Junky]

Nah it was good all night.

I had Wanli tyres on which I've been told recently are grippy as for a cheap arse tyre (were on the car when I bought it), and I started at a 13.7 and got to a 13.4 at the end of the night. The this ran a 1.9 60ft and launched hard. Dumping the stock clutch at like 6000 rpm.

That's why I'm so frustrated with the crappy times last night. My car is much faster now that it was, but the crappy times show that it ain't the best on the strip.

Rev210 picked up 0.4 of a second with the lightweight flywheel.... Why did I drop speed?

BASS OUT

[2rismo]

I think I'd like another dyno run done now as it is and then I wanna see both graphs.

Torque curve please.

Adrian

[r33GTS-t-200kw]

Ive got around 200rwkw with standard turbo. Best I could do was a 13.5 and 108mph... go figure :Bang:

[neil_se]

Something else sounds up rather than just a bad launch and wheelspin, you should still be running, at worst, 106mph. Even when i had a shocking 60', wheelspin til 3rd, hot day, blah blah, i still ran the same mph of 114 even though my ET was 13.4. I also had a lightened flywheel, but it wasn't the cause of my crap times (best of 13.0@113mph).

[Bass Junky]

Well, here they are....

I haven't got torque for the lower power level though.