12 second car?

[Shotgun28]

I was curious would this tank of mine hit the 12-plus second mark adding the following:

Plan to get:

Cobra intake
65 mm T/B
73-75 mm MAF meter
75 shot of NOS
1.6 or 1.7 roller rockers
190 lfp


What I have now:

3.73 Gears
Lentech AOD street Terminator "plus" 2800 stall
ASP underdrive pulleys
Flowtech Long Tube Headers
Off road h-pipe
K&N 12" conical filter system
GT40 P heads
2-Chamber Flowmaster cat-back system
MSD 6A ignition
and a few thinkgs I can't think of of the top of my head...

I want 12's, is this possible with the added mods to my present.

Thanks



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91 LX Convertible Gray on Red B&M Shift improver kit,ASP red alum. underdrive pulleys, Richmond 3.73 gears, 1 5/8 Flowtech long tube Headers and off road h-pipe, Flowmaster 2-chamber cat-back with S.S exhaust, MSD 6A Ignition with coil,Cap and rotor, Taylor Pro wires, K&N 12" conical filter system, Jet stage 2 performance chip and just purchased some GT40P heads, looking at exhaust, Lentech Street Terminator plus on it's way...

[bigwhitecobra]

Sounds like you are off to a good start. I'd get my heads ported, or buy a new set. Go with the 1.7 rockers. Sell your 3.73's and get a set of 3.55's. The 3.73's will be too much for a 12 sec car. Oh, nevermind, you will be using N2O. The combo you have planned sounds like a solid 12.7-12.9 car. Hope it goes faster!

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1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, est 1/4mile time of 10.5+/-
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

[93CobraR]

It should already run 12's when you get your heads and intake on.

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87 GT, 4 inch cowl hood,17x9 Cobra R's/255/45's,GT-40 heads,long tubes headers,h-pipe,Flows,BBK cold air, Mass air,70mm MAF, 1.7's, 1" spacer,underdrive pulleys,Pro 5.0, King Cobra, Adj. fuel Reg., Lakewood Lift Bars,50/50's,subframes, 4.10's.
Best time 13.012
Best MPH 104
Best 60' 1.816

Visit my site at:
http://www.geocities.com/cobrar93_2000/MyPage.html

[93SVTstang]

I agree with 93CobraR...you should be in the 12s or real close with just the heads & intake.

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93 Cobra: MAC fenderwell mount cold air, BBK underdrive pulleys, 8mm plug wires, shorty headers, off road h-pipe, Borla Cat-back, centerforce clutch, hurst shifter, 3.55s, and 12* of timing

[Five0]

I went a 7.70 at 89mph on less than that and a 75hp shot of NOS, I would say with a good set of slicks you should be able to hit a easy low 12 sec et with good traction.

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James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

[Skyman]

Dont listen to him about the gears or selling your heads. Those heads make great power. That setup COULD yeild you 12's with good traction with out the NOS shot, but it may not. I suggest milling your heads before you put them on to gain some compression. Higher compression works fine with nitrous. With the 75 shot I see no reason you shouldn't hit mid-low 12's.

Skyler

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-1989 Saleen Mustang #406-
TFS Heads, Edelbrock intake, E-303, 3.73's, 1 5/8 shortys, Offroad-H, 2chamber flows, 36psi FPR, 15degrees timing, 70mm tb, 73mm maf, 24lb inj, Crank pulley, MSD6A, Alum driveshaft.

Added: B&M Ripper, Subframes, & Turndowns.

[Five0]

I mean 87 mph.


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James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

[Five0]

By the way, that time was run with 3.55 gears, exhaust, k&n, 75 hp NOS, suspension, and slicks.

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James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

[bigwhitecobra]

For the record, I wasn't telling him to change his gears. I was just suggesting that for a high horse car, 3.55's would be better suited.

I also suggested that he concider porting his heads, or buying a new set, since it costs about the some price. Didn't mean to confuse any of you. Have fun, and drive safe.

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1989 GT- Vortech blown 306, Anderson 3" power pipe, Vortech S-Trim 14# boost, MSD-6BTM, black wrinkle finish Cobra valve covers(woohoo), world class T-5, 3.55 gears, custom sub-frame connectors, Cobra grille insert and rear valance, Saleen "whale" wing, 4 wheel disc conversion, est 1/4mile time of 10.5+/-
1994 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph

[1989GT]

Yeah you should be close to 12's with the heads and intake. Don't change the gear. 373's are fine. I think you'll be fine with what you've got.

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89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on!
Throttle Junkie Powered by Ford!
12.824 @ 107.05 MPH
PVT Blankenship leaving for BCT 14MAR01
MOS 67 Romeo

[exgmguy]

I would not say he has a "high horsepower" car. 3.73's or 4.10's would be perfect for that AOD.

He would need to go down to a 3.55 when his trap speeds exceed 120 mph. Then he could just use 28" tall tires.

You'll hits 12's with some hook for sure.

[Jeff Chambers]

The heads, intake and TB/MAF combo should be more than enough to get you into the twelves. However, I'd dump those 3.73's for something more in the area of 4.10's or 4.30's for that AOD. You may find with the new combination that your torque converter needs to be changed. You'll be making quite a bit more HP&TQ so its going to stall out differently that what you're used to with the old combination.


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Jeff Chambers
Trophy Stock #3
11.97 Seconds / 114.5 MPH
Chambers Racing Team

[Shotgun28]

Jeff,

Change Convertor to what seeing I already ordered the tranny, now did I just waste $2395, with the 10" convert and I believe 2800-3000 stall. I just ordered this thing and haven't recieved it yet, now I am nervous. Tell me more Jeff, if you would. Thanks

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91 LX Convertible Gray on Red B&M Shift improver kit,ASP red alum. underdrive pulleys, Richmond 3.73 gears, 1 5/8 Flowtech long tube Headers and off road h-pipe, Flowmaster 2-chamber cat-back with S.S exhaust, MSD 6A Ignition with coil,Cap and rotor, Taylor Pro wires, K&N 12" conical filter system, Jet stage 2 performance chip and just purchased some GT40P heads, looking at exhaust, Lentech Street Terminator plus on it's way...

[Jeff Chambers]

If you discussed your plans with the the guys at Lentech, then you should be alright. If anybody knows the AOD, its those guys (I've got one too). But the stall converter behavior is really dependent on the application. A 2800 stall converter will work differently on your 5.0l motor than the same converter will on a monster 460 big-block. How, when and where your torque appears is the big driver.

If you told Len what you were planning you'll be OK. Even without any dyno curves from your motor/car, they've got a good idea of what the torque curve will look like and what/where the peak will be. That along with your basic information should be enough.

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Jeff Chambers
Trophy Stock #3
11.97 Seconds / 114.5 MPH
Chambers Racing Team

[NOS_Notch]

If the AOD holds you back a 1/2 second as opposed to t-5, I would expect you to come in around 12.20-12.40 @ about 112
I have stock heads,cam,intake,rockers,etc.
Just 4.10's,exhaust, a/c delete,smog delete,pullies, bbk cold-air,75 shot &
Suspension stuff.


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4.10's,long tubes & 75 shot...Goes 12.50's
Check it out at http://www.burnouts.webprovider.com