opinions on times ... turbo t/a

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Old 07-27-2014, 07:29 PM
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Default opinions on times ... turbo t/a

99 ls1 228r on3 76 mm 7.5psi
Dyno says 528rwhp

I only got to run 4 times so think I can go faster

Reaction .4185
60 ft 1.7498
1/8 7.6120 at 97
1/4 11.6 at 119
da was 1146

I did trap 123 one run but my 60 stunk so I ran a12.3

My launches were bad I'd either spin or bog because I don't want to break the 10 bolt ... I was on mt/et streets 26x11.5x17 at 15psi and comp 3 way shocks . Non adjustable lca and panhard.... thanks for any input before hand

Last edited by transaminator99; 07-27-2014 at 07:44 PM.
Old 07-27-2014, 07:44 PM
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6 speed btw
Old 07-29-2014, 06:00 PM
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Not sure you're making 528rwhp with a 119 trap speed, but not a bad run. You need a 2 step to really et well with a 6 speed turbo car.
Old 07-29-2014, 08:54 PM
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Originally Posted by transaminator99
99 ls1 228r on3 76 mm 7.5psi
Dyno says 528rwhp

I only got to run 4 times so think I can go faster

Reaction .4185
60 ft 1.7498
1/8 7.6120 at 97
1/4 11.6 at 119
da was 1146

I did trap 123 one run but my 60 stunk so I ran a12.3

My launches were bad I'd either spin or bog because I don't want to break the 10 bolt ... I was on mt/et streets 26x11.5x17 at 15psi and comp 3 way shocks . Non adjustable lca and panhard.... thanks for any input before hand
You sure your clutch is holding tight? Also, what gears and what rpm going through the traps? You're only picking up 23mph from 1/8th to quarter... That's more like a H/C gain IIRC.

He could be making that power but no two-step and boost drop for shifts... I still say that should be closer to 126-130 mph trap depending on weight .

Last edited by H8R; 07-30-2014 at 06:27 AM.
Old 07-30-2014, 04:29 PM
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Something is wrong, you went from 97 to 119...for reference in my slow car I've been 90 to 115-117.
Old 07-30-2014, 08:36 PM
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I have stock 3.42 gears and I was in the beginning of 4th ... I know it was weird because on the 12.3 run I went from 93 to 123 from 1/8 to 1/4 that was a 2.2 60
Old 07-31-2014, 11:37 AM
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Originally Posted by H8R
You sure your clutch is holding tight? Also, what gears and what rpm going through the traps? You're only picking up 23mph from 1/8th to quarter... That's more like a H/C gain IIRC.

He could be making that power but no two-step and boost drop for shifts... I still say that should be closer to 126-130 mph trap depending on weight .
I think the clutch is good it's just a ls7 clutch .. I was in the very beginning of 4th not sure of the rpm ...I agree though on what it should be trapping Idk if there's an issue or if the dyno was happy but I did trap 123 once
Old 07-31-2014, 11:52 AM
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Hmm, definitely fishy. I agree with ddnspider, a 2-Step would help you a lot.
Old 07-31-2014, 03:13 PM
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Originally Posted by DEFYANT
Hmm, definitely fishy. I agree with ddnspider, a 2-Step would help you a lot.
Is there any tuning involved in a 2 step ? I know I've been looking at other people's time slips and my mph in the 1/8 is higher but 1/4 is the same but .2 faster
Old 08-02-2014, 05:36 PM
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Well I had a large boost leak past 3 injectors
Old 08-02-2014, 05:59 PM
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Originally Posted by transaminator99
Is there any tuning involved in a 2 step ? I know I've been looking at other people's time slips and my mph in the 1/8 is higher but 1/4 is the same but .2 faster
Most 2 steps allow you to adjust timing to build boost. Thats really all you need for a setup like yours.
Old 08-23-2014, 09:23 PM
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What is your fuel set up?
Old 08-23-2014, 09:53 PM
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Originally Posted by manfred717
What is your fuel set up?
Aero 340 pump , 60lb dekas , boost referenced regulator with evap hard line used as return to tank



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