Need help on 1/4 time

Silver5.0 · 02-14-2002, 02:10 AM

Hi everyone i have a 91 Gt I have 3:55 gears,190lph fuel pump,mac headers,dynomax super turbo cat back,Fuel pressure reg,g-load brace,racecraft springs,ram air, now i have a aod thats bad and i would have had a new one that had a artcarr valvebody,shift kit and 3500 stall converter but a sleaze ball in new york con me so now i'm getting a aodwith racing clutchs and shift kit with a B&m 2400 stall. What do you think my 1/4 mile time will be with the new tranny. Thanks silver5.0.
Oh yea what does everyone think of the Gt-40P HEADS.

Bad89stang · 02-14-2002, 02:33 AM

You are still dealing with a stock motor with a little help on the exhaust side. Mid 14's would be my guess with good driving (good light).

GT40P heads are fine if you don't mind getting headers that are made just for them. Something to think about.

fiveohpatrol · 02-14-2002, 04:31 PM

I agree, mid 14's.
Mine used to be an AOD car and thats about what I ran with light mods like yours.

Those 3.55's are a waste of steel using them in a AOD car. If you are looking for good 1/4 times, go with 4.10's

The P heads are good and can be great with some porting, the only thing is that you have to buy specific headers for them which I think are close to $200.

good luck, let us know what times you get

02-14-2002, 02:10 AM	#1
Silver5.0 Registered Member Join Date: Aug 2001 Location: Mukilteo,Wa,U.S. Posts: 53	Need help on 1/4 time Hi everyone i have a 91 Gt I have 3:55 gears,190lph fuel pump,mac headers,dynomax super turbo cat back,Fuel pressure reg,g-load brace,racecraft springs,ram air, now i have a aod thats bad and i would have had a new one that had a artcarr valvebody,shift kit and 3500 stall converter but a sleaze ball in new york con me so now i'm getting a aodwith racing clutchs and shift kit with a B&m 2400 stall. What do you think my 1/4 mile time will be with the new tranny. Thanks silver5.0. Oh yea what does everyone think of the Gt-40P HEADS.

02-14-2002, 02:33 AM	#2
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	Times... You are still dealing with a stock motor with a little help on the exhaust side. Mid 14's would be my guess with good driving (good light). GT40P heads are fine if you don't mind getting headers that are made just for them. Something to think about. __________________ You're gonna need your seatbelt

02-14-2002, 04:31 PM	#3
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	I agree, mid 14's. Mine used to be an AOD car and thats about what I ran with light mods like yours. Those 3.55's are a waste of steel using them in a AOD car. If you are looking for good 1/4 times, go with 4.10's The P heads are good and can be great with some porting, the only thing is that you have to buy specific headers for them which I think are close to $200. good luck, let us know what times you get __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

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