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s**t 1/4 Mile time..... 


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Posted: Fri Dec 01, 2006 10:14 pm 
Getting Side Ways
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Age: 64

Posts: 3552

Joined: 7th Nov 2004

Gallery: 4 images

Power: 482 rwkw

Location: Penrith
NSW, Australia

That cam would be ok IMO not the hassle of changing it...I'd be checking into better induction as in HEADS..and inlet...



As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

Posted: Fri Dec 01, 2006 10:55 pm 
Getting Side Ways
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Age: 33

Posts: 2058

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

Aaron_EF8 wrote:
As a bit of a guide, I ran 15.4 in an EF Fairmint with a 3" exhaust, 65mm TB and underdrive pulllies at Heathcote, which is one of the slowest tracks in Australia.

Having underdrive pullies with larger alternator and water pump pullies makes them underdriven further, so they spin slower/use less power.

IMO 4.11's wouls make it slower over the 1/4 with stock heads, and stock sized tyres.

Everyone gets offended when this is suggested, but maybe you just need to find a better driver, or practice up on launch techniques? Drag racing is certainly more involved than flooring it for 15 seconds. If you have your timkeslip handy, do you reckon you could post every time from it?

Diff gears can make a world of difference, especially in a warmer motor.

The launch will be better and although it will run out of puff a little sooner, it will get up to a higher speed and cover more of the 400m with a higher speed due to better acceleration.

Should be able to go .3 faster.



Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Posted: Fri Dec 01, 2006 11:10 pm 
Oompa Loompa
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Posts: 23

Joined: 27th Dec 2004

Location: perth
WA, Australia

what condition is the tranny in? not slipping?
is the torque converter slipping?
are you getting WOT?
cats in good nick - not blocked?
all sensors clean and funtioning correctly and at the right settings?

with all the mods you have I would be expecting it to go alot better than 15's, hell I was getting 15.1 with just a set of paccies and a pod filter, otherwise the rest of the car was std (even the suspension).
 Post subject: Re: s**t 1/4 Mile time.....
Posted: Sun Dec 03, 2006 12:02 am 
EFI Guru

Age: 52

Posts: 4300

Joined: 5th Nov 2004

Gallery: 28 images

Ride: 351 Vogue,XH 5.0,'17 5.0 Stang

Location: Perth
WA, Australia

Looks like you've got a mismatch of parts veeate.
The 2030 is a better cam for stock heads(1400-5400 rev range) and the Edelbrock intake with a 70mm T-body will throw away the port velocity required to fill the cylinders through stock heads. I would have changed the heads before the intake.
Your 89mph trap speed shows you're making less top end hp than your old combo.
From here I'd say get some 1.90 valve Edelbrocks,proper underdrives and 3.7 gears.

 Post subject: Re: s**t 1/4 Mile time.....
Posted: Tue Dec 05, 2006 9:01 pm 
Oompa Loompa
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Posts: 36

Joined: 22nd Nov 2004

Ride: ED XR8 Sprint

Location: melbourne
VIC, Australia

veeate wrote:
ok people ive taken my car down the drags with the new engine and im very disappointed...its an EB 5L auto.

with the old engine i pulled a 14.8 @ 92mph. mods at that stage were:
- std engine with 2030 cam and springs only
- 4.11 diff gears
- underdrive crank pulley
- shift kit & 2500 stall
- K&N panel filter
- EL GT snorkel

with the new engine i could only manage a 15.3. @ 89 mph new engine consists of :
- std bottom end bored out 30 thou
- stock heads
- 2040 cam & crow springs
- crow timing chain set
- 1.7 roller rocker
- Edelbrock performer intake
- 70mm tb
- 75mm AU MAF
- Tweecer

now ive got 3.45s instead of 4.11 and the stock crank pulley is back on..

i was expecting at least the same if not better

what the f**k is goin on ?????? :twisted:

sorry to change the subject,

but did you ever get limp home becasue of the 2500 stall??
Posted: Wed Dec 06, 2006 8:22 pm 
Tyre Shredder

Posts: 311

Joined: 3rd Jan 2006

Location: tauranga
New Zealand

i agree with the others in changin your heads mate, my au 185 with the usual mods put out 146rwkw after portin the heads out and comp 264 cam did 176.5 with stock computer and thats only gt40p,s went from 15.0-14.49 1/4 stock fairmont trans
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