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25-09-2006, 10:50 AM | #1 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
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i got this time from a g-tech so its not exact but i would assume its close
terminal speed i got 90.1mph from a std weight 1991 fairmont what can i go to get it into the mid 14's...i have 3.91 spooled diff waiting to go it as the car is a pig off the line. i would assume that with a 90mph term speed i should be doing low 15's so is it just my rear end gears holding me back or is my car just slow any ideas to get it faster let me know 0-100kmh is 7.8sec
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CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
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25-09-2006, 11:54 AM | #2 | ||
TBA Customs
Join Date: Jan 2005
Location: giving you what you need
Posts: 3,275
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Mate get it on the track, never used a g-tech so have no idea of accuracy, but ye with 137, if that is correct, you should be at least in the 15's.
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25-09-2006, 05:16 PM | #3 | ||
Slide Baby Slide
Join Date: Mar 2005
Location: SA - The Drift State
Posts: 2,662
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^^^^^ what he said!
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:the_finge You want more inches...........STROKE IT!!! :the_finge Mr Super Skid-Man |
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25-09-2006, 07:31 PM | #4 | ||
Thunderbolt driver
Join Date: Jun 2006
Location: Big Block Country
Posts: 609
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In my experience, G-tech's are quite accurate. I'd believe it over what kw reading you get off a dyno. The best indication of a cars output is the mph at the end of the 1/4 mile. A dyno is good for a tuning tool, to get a before and after power reading.
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25-09-2006, 08:05 PM | #5 | ||
TL40 Wagon?
Join Date: Dec 2004
Location: Sydney
Posts: 2,377
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from evrything else quoted you woud think mid 15's would be closer to the mark.
i doubt this is a flattering gtech result |
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25-09-2006, 08:34 PM | #6 | ||
Regular Member
Join Date: Jan 2005
Posts: 175
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Im assuming its an auto? Did you stall it up..
You could'v been driving on a slight uphill? Does the G-tech compensate for that... i dunno how they work just an idea. 137kw 90.1 would give you 15.5, 15.4 i would guess. To make it faster theres alot you can do... whats your budget. A manual, with good tyres & your 3.9 would easily get you 14s, not sure about mid 14s but quite possible. |
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25-09-2006, 09:03 PM | #7 | ||
Back on the road
Join Date: Dec 2004
Location: Wollongong, NSW
Posts: 3,205
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I think they are OK for comparisons when using the same bit of road, but as far as outright accuracy....there are just too many variable IMO.
A 15.5 should be a no brainer with your car at the track. With decent conditions, and a bit of luck, I would think more like 15.2/15.3. Its a pig off the line because first gear in the auto is super tall. Dont worry, it affects all us laz-o-matic Falcon drivers. A higher stall converter is the best way to sort it, but shorter diff gears like you suggested will also help. What are your mods? Just extractors, and cat-back right? A ported lower intake would help alot because the front two cylinders get seriously choked by the dogleg shape of their intake runners. I'd like to think you'd be running mid-14's with your exhaust, the 3.9's, ported lower intake, and some tweaking with timing and fuel presure at the track.
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------------------------------------------------------------------------- AU XR8 Ute 13.90 @ 100mph - http://www.aufalcon.com/xr8ute 5L Windsor, GT40X heads, Crane 2030, Pacey 4-1s, Lukey 3", 3.91:1, auto. Tuned by me w/Quarterhorse and BinaryEditor. Coming Soon: Ported lower intake, Tickford "Premium" Brakes, and a good wash. |
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26-09-2006, 07:58 AM | #8 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
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thanks for the advice
i did 2 runs on the same road first i stalled it up and let the brake go but it spun the wheels and dogged off the line and got a 16.2 @90.1 then i tried spiking the brake on take off and it didn't spin and got a 16.1 @90.1 i also tried leaving it in 'D' and i got 16.8@88 so i'll forget that one also when changing gears i hit 2rd at about 15.5 seconds so i pretty much only used 2 gears for the quater test so i think i'll be doing diff gears sooner rahter than later
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CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
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26-09-2006, 08:50 AM | #9 | ||
TBA Customs
Join Date: Jan 2005
Location: giving you what you need
Posts: 3,275
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Did you do a run in each direction?
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26-09-2006, 09:05 AM | #10 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Location: Wollongong
Posts: 3,111
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same direction both runs.
i'll be heading out to wsid this wed or the wed after and i might give my spare set of tyres a run (205/50 r15 dunlop semi slicks) they should make the car take off like its got a 3.55 diff
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CURRENT RIDES BA GT Mk1 #0009 - Narooma Blue SY Ghia AWD Black VZ LX8 Adventra Holden HX 50th Anniversary AU Saloon Car racecar 1980 GS1000ST - Wes Cooley Rep
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