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 Townsville Dragway

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Privatealpha
Mitsi EVO IX
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Location : Townsville

PostSubject: Re: Townsville Dragway   Sat Dec 19, 2009 2:44 pm

Well guys, just got back from the drags.
Couple of problems:
1. My tacho doesnt work, just shifting when it hits the limiter.
2. My rev limiter is only 6700rpm, so when i shift up a gear, the gears are around 4000rpm and im off boost.

Regardles, and im very happy about the time:
14.45 @ 97mph
60ft: 2.2secs

Dropped the tyre pressure to 20psi, but still no traction in 1st or 2nd.

/excited
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BobsN13
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PostSubject: Re: Townsville Dragway   Sat Dec 19, 2009 3:45 pm

Good work mate. A good second off your time and on it's first outing too. Get your problems sorted and you should have no drama's seeing some low 14's hi 13's with practice.

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Privatealpha
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PostSubject: Re: Townsville Dragway   Sat Dec 19, 2009 4:32 pm

This was a blind practice, no tacho makes it difficult to launch.
I just rev untill i hit the limiter, back of a little bit and dump the clutch.
Probably a bit too much revs.
Good fun though Smile
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BobsN13
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PostSubject: Re: Townsville Dragway   Sun Dec 20, 2009 5:53 am

I dont really launch mine cause I dont want to break anything. lol. Besides, if I did that I would be spinning the wheels uncontrolably for bloody ages.

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Privatealpha
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PostSubject: Re: Townsville Dragway   Sun Dec 20, 2009 6:08 am

I dont have too much power where it spings too much.
I launch, and then i just sit on the limiter untill im past the 60ft.
Definitely going to break something here.

Tried doing a burnout, and the car wouldnt engage 2nd gear, it just crunched.

Another run, i missed 3rd gear and again crunched...

I might just buy another gearbox as a backup.
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BobsN13
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PostSubject: Re: Townsville Dragway   Sun Dec 20, 2009 5:28 pm

Hydraulic or Cable clutch? Might need bleeding or adjustment. Could also be a worn clutch or pressure plate springs have slackened off a bit. Might be the box but trust me, I would try the cheaper things first.

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rhys
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PostSubject: Re: Townsville Dragway   Sun Dec 20, 2009 9:00 pm

good to hear u should get high 13s with it once u fix the few little things good to see ur happy wit the results Very Happy
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888ASS
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PostSubject: Re: Townsville Dragway   Mon Dec 21, 2009 4:36 pm

just crappy u got done over by a vn commy lol
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 8:32 am

you're off boost at 4000RPM!? Dude you got the right turbo?
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BobsN13
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 9:07 am

Sounds like a tuning issue to me.

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Privatealpha
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 9:40 am

GRPABT1 wrote:
you're off boost at 4000RPM!? Dude you got the right turbo?

Well i only got my tacho fixed yesterday and with some driving.
Full boost is 4500-5000rpm

Gear Change RPM drop (change @6700) RPM drop (change @6700)
-------------------------------------------------------------
1 -> 2 -2437 (to 4263) -2437 (to 4263)
2 -> 3 -2333 (to 4367) -2333 (to 4367)
3 -> 4 -1814 (to 4886) -1814 (to 4886)
4 -> 5 -1048 (to 5652) -1048 (to 5652)

After shifting, rpm's drop pretty close to 4000, and it causes a slight stumble.

Car isn't perfectly tuned as I still need larger injectors.

Jason does seem to tune cars with a huge margin for safety.
My injectors are the same size as the CA18DET and those are good for 140-150kw ATW.
Bob can confirm that
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BobsN13
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 2:52 pm

On your engine they should be fine for 150. Depends on the fuel pressure.
Thats some hi revs for full boost. Mine starts coming on around 2500 and full boost by about 3200 - 3500. Hesitation sounds like a tuning issue. Maybe a sensor as well. 20psi on a small motor will take awhile to build up though.

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benjames
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 4:00 pm

Yeah, I'm thinking the same... 20psi is a big number for a four banger to spin up in a hurry... Have you held it at around the 3000rpm mark to see if it slowly spools it in?

Really nice time BTW, especially for a first outting!!!
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Red Dog
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PostSubject: Re: Townsville Dragway   Tue Dec 22, 2009 11:42 pm

as i said the other day chris, just hold it and do flat changes Smile
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 12:50 am

Red Dog wrote:
as i said the other day chris, just hold it and do flat changes Smile

AAAaaaAAAaaaaW Yeeeeeeeah! Cog cruchin FTW!!!!! pirat
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Red Dog
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 12:56 am

they wouldnt call them teeth if they didnt need cleaning Smile my dentist tells me i should clean them at least twice a day.......
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BobsN13
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 6:34 am

I dont like flat changes. A throttle blip is enough for me. Flat changing is what snaps my engine mounts.

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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 7:50 am

I didn't realise you were running 20psi. Obviously there is still more to be done in the way of injectors and tuning before passing judgement. I also think you should be getting alot more RPM out of that motor when fully tuned with bigger squirters, then the lag won't be an issue.
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Privatealpha
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 8:19 am

Someone wrote that wrong, im only running 10psi...
Definitely wont be going over 15psi on a stock motor.
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Mazdabater
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 8:32 am

What size turbo did u put on the car to be getting so much lag, i was under the impression it was farily small
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Privatealpha
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 8:45 am

Its a t25 turbo.
GT2560r

Driving around the car doesn't really feel laggy.
Although i don't have anything to compare too.
Besides, i think i need to do this when im in third gear cause 2nd gear is over pretty quick and i dont think that gives the car enough time to spool up.
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888ASS
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 9:09 am

jason seems like a dodgy tuner nick is having dramas with his tune and jason done his take ya car to pauly at xtreme see what he says
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Mazdabater
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PostSubject: Re: Townsville Dragway   Wed Dec 23, 2009 9:48 am

I dont see why u didnt just get aitkevnale to tune it when they fitted the other puppy.
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PostSubject: Re: Townsville Dragway   Thu Dec 24, 2009 1:13 am

Yeah I reckon take it to aitkenvale. frogger extreme Paul frogger Nick's tune worse than Jason.
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Red Dog
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PostSubject: Re: Townsville Dragway   Thu Dec 24, 2009 1:40 am

not too sure if what i have heard is correct, but jason didnt install nicks ecu? i know that i wouldnt really like to tune a setup i didnt do.
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