Bogging Down - Launch

[Adz2332]

Hey all

Took the track car out to the 1/4 mile drags on the weekend.

Wasnt a full on meet or anything more a come and try / test.

My HUGE problem was bogging down hard at the start, not being able to launch at all.

Running slicks i couldnt get off the line at all.

Car is a r33 gtst has 335kws, manual etc

it didnt matter how many revs i put through it nothing was working for me.... any ideas??

Once off the line and going was strong

Edited October 20, 2014 by Adz2332

[zebra]

2 step or just free revving?

[gtr jet]

Tried stalling up with the handbrake to bring on some boost?

[Adz2332]

2 step?

Free revving id say

[Adz2332]

2 step?

Free revving id say

[Ben C34]

What time did it run? What 60 ft? Post the slip please.

Your running a 3076r hta right? That should get on boost pretty quick. Perhaps it's down to the tune, did you get the temp sensor in place and a retune yet?

I was out there in my stagea , had dramas first pass and couldn't be stuffed sorting it. Ran a 13.5 at 105 woth a 2.48 60 ft. with problems from a half track. 1 second slower than last time but still 2 seconds quicker than the other stag out there! The extra lag of gt35 and stock converter certainly didn't help...... was a bit over the car lately so happy to just park it.

I didn't notice your car, I would have said hi.

[Adz2332]

  On 21/10/2014 at 12:17 AM, gtr jet said:

Tried stalling up with the handbrake to bring on some boost?

\I did try this but my reaction times suffered... but thats driver fault i guess! lol

[Ben C34]

Should have tried upping the tyre pressure to let them turn a touch .

Reaction times don't matter.

Edited October 21, 2014 by Ben C34

[Ben C34]

Does your ecu have an anti lag function? Use it!

[Adz2332]

  On 21/10/2014 at 12:19 AM, Ben C34 said:

What time did it run? What 60 ft? Post the slip please.

Your running a 3076r hta right? That should get on boost pretty quick. Perhaps it's down to the tune, did you get the temp sensor in place and a retune yet?

I was out there in my stagea , had dramas first pass and couldn't be stuffed sorting it. Ran a 13.5 at 105 woth a 2.48 60 ft. with problems from a half track. 1 second slower than last time but still 2 seconds quicker than the other stag out there! The extra lag of gt35 and stock converter certainly didn't help...... was a bit over the car lately so happy to just park it.

I didn't notice your car, I would have said hi.

Hey mate i didnt get the slips from it. i cbf was pissy lol... i should have but threw in the towel after 3 runs. Will get back out as soon as the car is better sorted.

Na its still not sorted at all, boost comes on late still. The only reason i ask there was a few stockish 32s and 33s getting off the line a hell of a lot better then me with less hp.

I can only remember it ran into the high 12s each time

Was yours the white stag??

I was there late late. as i wasnt going to do it then decided to....

But had my bright yellow LH torana out there early if you saw that? but also had trouble on the day with that also.. hence why the towel was thrown in early and no slips were got lol.. all round had a shit day lol.

The Torana should run into the 11s but best that was sqeezed out was 12.3 with it breaking down from launch to mid track then ran perfect from there

Edited October 21, 2014 by Adz2332

[Adz2332]

  On 21/10/2014 at 12:22 AM, Ben C34 said:

Does your ecu have an anti lag function? Use it!

haha actually yer it does. would be interesting to try lol, but i dont want to kill nything!

Edited October 21, 2014 by Adz2332

[Ben C34]

My stagea is silver, the white one was running 15s.

I saw the torana and could hear it misfiring etc. Looked tidy though. Drag racing is heaps frustrating sometimes hey!

Don't be afraid to use the anti lag.

[Adz2332]

  On 21/10/2014 at 12:40 AM, Ben C34 said:

My stagea is silver, the white one was running 15s.

I saw the torana and could hear it misfiring etc. Looked tidy though. Drag racing is heaps frustrating sometimes hey!

Don't be afraid to use the anti lag.

Ah ok didnt see your silver one

Yer was missing but in second gear from mid track onwards was strong so will have to look into it. changed the carby jets and timing on the fly which made a little difference but will take it back and chuck it on the dyno and getting it back up....

Actually the Torana could have been petrol issue. was running avgas but couldnt get any so added 100 octane to it.. so it may not have liked the mixture.

So thats when we decided to shelve it and got my car out only for that to have problems lol....

bloody cars

[Adz2332]

and right now im in two minds....

I love drags and doing like mallanats etc.. but i wanted this car as an alrounder. like have a crack at drifting, hill climbs etc....

But a 2 speed power glide would make a big difference..........

[Ben C34]

Anti lag! All rounder.

[Super Drager]

How high did you try launching? Try 5000+ RPM and if it still bogs add another 500rpm next time, don't pedal it, keep your foot flat.

[blue_vl_t]

Yep, my car won't get out of the hole below 7000rpm, I generally launch at 8000. 1.6 60ft

Edited October 22, 2014 by blue_vl_t

[Adz2332]

What tyres do u run launching from that??

Time?

[Lithium]

You never answered what rpm you were launching at? The guy you were answering has a GTR, he may as well be the same as a GTS25t on slicks. On sticky tyres I was needing to launch mine over 6000rpm with a normal GT3076R.

What kind of trap speeds were you running, out of interest?

[Adz2332]

Ahh ok yer i have slicks on it.

i was launching from, started trying at 4000 then to 5000 then eased it off the line which actually did the best.....

Trap speed was around 110. i should have kept the slips, but between both cars had a frustrating day!