Fastest ET on 93 octane.

[robertf]

So a friend ask me yesterday if a GN can runs in the 10's on 93 octane? Hell, I had no answer for that. While I have no plans on trying, I was embarrassed that I could'nt answer it.

 

[BobbyBuick]

this is going to be good i think mellisa merritt went 9.50s on 93 octane

 

[pacecarta]

without methanol injection?
ive gone 9.45 with 93 and methanol injection , murphster went 9.20 but hes a little lighter

 

[Pronto]

this is going to be good i think mellisa merritt went 9.50s on 93 octane

And alky...

 

[robertf]

Meth never came up. I was just blindsided with the question. I think his concern was how fast can you go before race fuel gets involved.

 

[BobbyBuick]

And alky...

Im not getting into her personal habits

 

[turbo89]

Meth never came up. I was just blindsided with the question. I think his concern was how fast can you go before race fuel gets involved.

TTA has been in the 10's on 93 ... I know its not the exact same .. but I am sure a GN has been 10's on 93

 

[TurboWh1]

Alky is key In boost we thrust Best mod out there!!!!!!!

 

[bison]

A turbo regal can run 9's on 93 octane with no anti detonant with the right selection of parts. It takes rpm and good cylinder fill at that higher rpm


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[SCOOBY DOO]

One of the locals up here went 11.01 at 123 on 94...we have 94 up here. 109 stock stroke roller cam. TA heads. XFI with a 6131 and a PTC 2800 NL on 20 PSI on a 1.7x launch.

 

[TurboTnZ06]

On an almost bone stock GN, on pump 93 best I could do was 13.0 @ 104.

 

[No disintegrations]

please elaborate on "almost bone stock"

 

[TurboWh1]

On an almost bone stock GN, on pump 93 best I could do was 13.0 @ 104.

I experienced about the same. A lot has changed since then tho

 

[TurboTnZ06]

please elaborate on "almost bone stock"

TT chip, 60# injectors, adj FP regulator, hot wired Reds intank pump, gutted stock cat, M&H drag radials. At 3710#'s in 40F degree weather at Reynolds GA Buick shootout event back in 2010 or so. Only coudl run 16#'s boost, so really other than the chip, it had no real performance mods.

On pump gas on my 87 T back in 2000, even with a TE44, V4 intercooler, intake, no cat, open dump, THDP, etc, I could only run 16-17 psi boost before knock, so it only ran 13.1 @ 104 on pump gas only.

 

[dank GN]

What is to point here ? To see how close to detonation you can get with out going over ? It’s like that song Take It To Limit . Lol I just don’t see the point of flirting with disaster when a alky kit is great insurance . Just my opiinon and prob doesn’t mean much I just wouldn’t push it on only 93 octane and risk blowing a head gasket or a piston .

 

[Undercover87T]

Local guy in southern PA went 9.80's on 93oct only and 16psi. Stage 2 twin turbo, 400 with brake. Car is now in Iowa. I went 11.90s myself on 93 only @ 18psi with my old stock bottom/iron head 4.1. Agree it's not something that should be a goal. If you don't want to mess with alky then go the E85 route. Alky is nice as long as the pump doesn't fail.

 

[Pronto]

E85 is nice as long as your injectors are not clogged. There's always something that can cost an engine.

 

[Linewalker]

This is turning into a situation where the first bullchitter hasn’t got a chance.

 

[No disintegrations]

TT chip, 60# injectors, adj FP regulator, hot wired Reds intank pump, gutted stock cat, M&H drag radials. At 3710#'s in 40F degree weather at Reynolds GA Buick shootout event back in 2010 or so. Only coudl run 16#'s boost, so really other than the chip, it had no real performance mods.

On pump gas on my 87 T back in 2000, even with a TE44, V4 intercooler, intake, no cat, open dump, THDP, etc, I could only run 16-17 psi boost before knock, so it only ran 13.1 @ 104 on pump gas only.

That's funny I was going to guess a 45 degree day. I'm glad you mentioned it. Awesome run!