Give me your PUMP gas numbers!!
11-20-2007, 05:40 PM
#22
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I don't have any Dyno times but I have an 1/8th mi track time.
235 cu in. V6
3,780lbs with me
It went 6.67@104 in the 1/8th
This was with 93 pumpgas & Methanol Injection
235 cu in. V6
3,780lbs with me
It went 6.67@104 in the 1/8th
This was with 93 pumpgas & Methanol Injection
11-20-2007, 06:29 PM
#25
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Damn.. That's insane. Low timing defenitly is the key... I'm going to build my own single, or just buy the APS. Help me decide. I'm wanting it to be a street car. (A/C) I would have purchased the APS twin setup already, BUT I need to find out more about their turbo's (compressor size etc.) My motor = 408 9.0:1 CR
Last edited by FootLbs; 11-20-2007 at 06:36 PM. Reason: adding on
11-20-2007, 06:32 PM
#26
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I don't have to feel it. I can check it via knock sensors and plugs... no detonation. 18 deg of timing. That was on twin 70mm turbos. I just took the car down to install the twin 76s. Expect a little more now...
11-20-2007, 06:36 PM
#27
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Damn.. That's insane. Low timing defenitly is the key. Do you think you could have 800ish with twins? ... I'm going to build my own single, or just buy the APS. Help me decide. I'm wanting it to be a street car. (A/C) I would have bought the APS twin setup already, BUT I need to find out more about their turbo's (compressor size etc.) My motor = 408 9.0:1 CR
11-20-2007, 06:49 PM
#29
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Thanks guys for all your input!... and Tiago... TWIN 76 MM IS nice! Very nice. I would love to see some pics of your setup. Is it all custom?
Last edited by FootLbs; 11-26-2007 at 03:40 PM.
11-20-2007, 06:53 PM
#30
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I made an easy 735rwhp at 6000rpm on a Dynapack in June 06. Very safe tune, pump gas only.
Id say it would have made more, as no doubt my newfound weak valvesprings where in fact causing issues even back then.
382, 224/230 on 115, Vortech YSi blower, circa 15psi at 6000rpm
I think the weak valvesprings are the reason power was actually dropping after 6000rpm.
Id say it would have made more, as no doubt my newfound weak valvesprings where in fact causing issues even back then.
382, 224/230 on 115, Vortech YSi blower, circa 15psi at 6000rpm
I think the weak valvesprings are the reason power was actually dropping after 6000rpm.
11-20-2007, 09:28 PM
#34
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6.76 @ 104 in the 1/8th
This is with my 86 GN full weight (3,780lbs)
pwr windows
pwr seats
Cold A/C still
T-tops
No cage
This car is daily driven, autocrossed, drag raced and next year I want to do the yearone event and road race it..
Scot w.
11-21-2007, 01:10 PM
#35
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Compression does play a big factor, but I guess it depends if you want to give it a lot of boost and have less low end grunt you can lower it to 8.0:1
11-21-2007, 02:06 PM
#36
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I am subcribing to this thread. I love this crap!
By the way... Tiago is all custom. His car is completely insane. He's also a very cool dude who doesn't mind answering bonehead questions. haha
By the way... Tiago is all custom. His car is completely insane. He's also a very cool dude who doesn't mind answering bonehead questions. haha
11-21-2007, 04:50 PM
#37
Only with out Methanol injection! I myself have a 10:5:1 compresion V6 engine, PTE 70mm Turbo, 27lbs of boost / 21.5 deg timing on 93 pump gas and Our progressive methanol injection kit.
6.76 @ 104 in the 1/8th
This is with my 86 GN full weight (3,780lbs)
pwr windows
pwr seats
Cold A/C still
T-tops
No cage
This car is daily driven, autocrossed, drag raced and next year I want to do the yearone event and road race it..
Scot w.
6.76 @ 104 in the 1/8th
This is with my 86 GN full weight (3,780lbs)
pwr windows
pwr seats
Cold A/C still
T-tops
No cage
This car is daily driven, autocrossed, drag raced and next year I want to do the yearone event and road race it..
Scot w.
impressive... thats a bunch of boost on that compression
11-21-2007, 05:02 PM
#38
Its going to be about making the power more with the motor than the boost. Running methanol injection can let you up the boost levels safely and still run pump (93 octane) gas, but even then you will only be able to do so much consistantly and safely (meaning you might run 900 RWHP for a while on pump gas, but I doubt you see 50,000 miles out of the motor before a rebuild).
Personally I am running 15#'s of boost and 614 RWHP on my LT1 car in my sig all on pump gas, and am running safely enough I expect to see 100,000+ miles out of the motor.
Personally I am running 15#'s of boost and 614 RWHP on my LT1 car in my sig all on pump gas, and am running safely enough I expect to see 100,000+ miles out of the motor.
11-21-2007, 05:52 PM
#39
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My vette made 809rwhp w/a 408ci/paxton sc and 16lbs. Drove it 3k miles w/zero issues. Cooler weather came along and boost went to 18/19lbs and started lifting heads... Twin 70's going into the T/A 408ci right now. Should be tuning by next week if I get the exhaust housings in. Hoping for 800 at minimum on pump gas through the TH400. Car weighs in at 3100lbs, so should be a fun ride!
11-21-2007, 06:27 PM
#40
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My vette made 809rwhp w/a 408ci/paxton sc and 16lbs. Drove it 3k miles w/zero issues. Cooler weather came along and boost went to 18/19lbs and started lifting heads... Twin 70's going into the T/A 408ci right now. Should be tuning by next week if I get the exhaust housings in. Hoping for 800 at minimum on pump gas through the TH400. Car weighs in at 3100lbs, so should be a fun ride!
I believe you will exceed your goals....