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Got well in the 12s! 12.24@111.38

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Old 07-31-2016, 02:20 PM
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Default Got well in the 12s! 12.24@111.38

My 3rd meeting with Outlaw Street and another big improvement in ET, MPH and RT throughout the day.

Still got a bit of tuning to do, but running much better now.

Finally getting somewhere with the dial in on my LQ9 motor. Still having traction issues off the line, but I am on street tyres with leaf springs...

1.7750 60'
7.824@88.88 1/8 mile
12.2478@111.38 1/4 mile

Over the course of the day I improved from 13.1 to 12.44 and 108 to 111. The first run in the 13's was on cold tires and I got about 20yds of wheel spin.

I was having trouble getting in the 12's on my last outing, since then I have:
Replaced the exhaust from the headers back with a Pypes SG13R system with race pro mufflers. This replaced a 2.5" system with chambered mufflers.

I also noticed it was leaning out a bit at the top end of the track, only up to around 13.2 but it wouldn't have been helping. I couldn't tune it out so I cleaned all my filters, replaced my fuel pump and return line and now my AFR is perfect at 12.7 all the way through.

Today I did 6 runs, each time increasing the ignition timing 1 degree from 25deg to 30deg. 30 seems to be the sweet spot for my motor taking it from 108 to 111.38mph. I went as far as 31 and the MPH dropped back to 110.9 so I pulled that 1 deg back out.

I'm running on the best pump gas available in the UK, Shell V Power Nitro+

So, with the modifications in my signature is this about what I should expect from the motor?


Last edited by gothic_sera; 07-31-2016 at 02:27 PM.
Old 07-31-2016, 06:50 PM
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much better than your last thread , awesome improvement !

It should still be a lot quicker with 6.0 with heads , cam 4000 stall and 4.11's.

sticky tires alone should get you to 11.99 from there the trap seems a bit low for that combo do you know what the DA was ? if it was hot , humid and or at high altitude that would explain a low trap as well.
Old 07-31-2016, 07:22 PM
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Yea I wouldn't expect good track times on street tires. Good improvement though
Old 08-01-2016, 12:57 AM
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They never tell us the DA in the UK. The track is at about 100', it was about 21deg C, 65% humidity. Pretty ideal conditions.

I don't have much else to play with regarding the tune. I can add some fuel and see what happens, then pull some.

Being able to launch properly will help the time, but I think there's still some MPH hiding in there somewhere....
Old 08-02-2016, 09:00 PM
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you can always bring a little weather station with you and plug in the altitude , temp , humidity , and baro and get your own da...

your 2nd gen will trap a bit lower than the same combo would in a 4th gen just due to the windshield being stood up more than a 4th gen but I agree that combo should yield higher traps despite being slightly less aerodynamic.
Old 08-04-2016, 08:36 AM
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That racing channel has an app that calculates the DA for you. Not saying it's 100% accurate but if you race at the same track a lot you can have something to compare
Old 08-04-2016, 11:42 AM
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The guy in the right lane, took him forever to stage!
Old 08-04-2016, 12:13 PM
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Originally Posted by GIZZ
The guy in the right lane, took him forever to stage!
Sure did.... they did the same burnout as me. Can't remember what car they were in. But it did take an age for them to get staged.

I prefer not to muck about, get on with it and get it done.
Old 08-20-2016, 02:37 PM
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Crap times today, very slippery track and a 40mph head wind probably didn't help at all.

12.96@109.11 was the best effort. ET was 0.7 down on my PB and 2mph short too.

Just could not get traction at all today - and it wasn't just me....

I did get a couple of nice photos from Blackett Photography though...

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Old 08-21-2016, 08:37 PM
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Car looks great love that hood
Old 08-22-2016, 02:38 AM
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Thanks Everyone seems to like my hood... lol

Does anyone think there would be any benefit to locking the converter in 2nd and 3rd?



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