Just because something didn't come with TPI doesn't mean it can't have TPI. With that mentality all the 3rd gens w/ cowl induction doesn't exist either no to mention all the strokers.


The point is, mid 14's is not adequate. The 4.6 isn't the slug everyone is making them out to be. Ya, you'll be able to beat a bone stock 4.6 auto, but you'll still have problems beating a stock 4.6 5spd unless the driver sucks. Like I said before, how many totally stock Mustangs are going to be racing? With just a minor and extremely common mod such as an exhaust, they'll leave you behind at mid 14's. They don't have a huge aftermarket because no one mods their Mustang and all they'll run is mid 14's.

As for ricers. Most of them are anywhere from 17 to 15 sec cars. Running mid 14's you'll still get beat by the factory turbo cars and a lot of the naturally aspirated 6 cyl cars are still going to give you a run for your money. Ya, you will be able to beat the ricer boys that just got finished watching "the fast and the furious" and think their high 16 sec Civic will run 10's w/ a 50 shot of nawwws.

 

Stock mustang with a catback you think will go that much faster? Boy you must of been beat by a lot of mustangs to be backing them so much, or you yourself drive one. Just because YOU get beat by a 4.6 auto in your 350, doesn't mean that a 305 cant beat the 4.6

 

I have a best of 14.9 w/ my 305 TPI motor. It has exhaust and filters but other than that it's stock. It has some problems too. it smokes on start up, my timing chain is loose, among some other small probs. w/ 100,000 miles. Now, if you want to run 14's for under $1,000 you could probably go with the TPI setup and some headers, and that should get it I would think.

But if you'd like to stay with the TBI, I'd go with headers, exhaust, gears, pulley's, LT1 cam, MSD, and a 75 shot of juice. I would think that would get it....I dont know.

 

I agree stay away from pulleys unless you want a track only car and in that instance rip everything out but the alternator.

 

couldnt have said it better myself man. all you TBI bashers: what is it exactly that you think is so terribly bad about TBI? Now, I am a fan of the 305 (i have one ) but in all honesty, if you put, say, $500 in a 305 and $500 in a 350, the 350 will win. but i understand that 96cam4ro already has a 305 so... anyway heads cam and exhaust should dip you in the 14's. good luck bro

 

I just know they run faster than a mid 14 w/ very few mods. As for me getting beat by them, when you run a 12.90 on an engine you built w/ a long block that cost only $800 to rebuild let me know.

 

LOL To beat a mustang is as easy as putting your foot on the gas. No really this is a good thread for me cause I spend more time whopping mustangs more than any other car on the streets. I have a 305 in my 86 Z-28 and it's always that 3rd gear bull that messes up the stangs (no more power!). To get your TBI to wake up seems to be the problem, First off get a "full" tune up (including trans fluid change/ and check rear end fluid). Second next time you race look at your Tach carefully (but dont wreck ok?) If it's not moving at the same rate to the pressure your applying to the pedal, something wrong. But to make things simple:

3/4 cam (duration ?), exhaust, check vacuum lines etc..

I see no reason that a freshly tuned up tbi cant beat a silly lil mustang v6 or GT (not the Saleen or Cobra). Unless it's the driver hmmmmm? Take it rom me I raced my 86 Z-28 from 97 to 01 (coming back out next month) and only lost to one stang. And did'nt lose that one until he hit the bottle. Even in my 2000 Camaro V6, GT stangs simply cannot hang. From the streetlight or the highway. Oh and I race at least 5-7 times a week and guaranteed at least two of em will be mustangs. I just raced a TA and V6 stang Friday. Needless to say after 100mph it was just between the TA and me. Get your car running factory specs (not even modded) and you'll see why Camaros will always demolish rustangs. Check my racing page out and you'll see what I mean

http://camaroz28.cardomain.com/stangkilla1 (go to page 2, and start reading!!!)

 

greedforspeed

I am right at about $800.00 for my buildup, minus the superram. But you also did a rebuilt already probably having most of the parts. I expect to be in the mid to low 12's for about $1,500.00 total, but that is waiting for deals to come buy over months and months of time. Nickel and diming all over the place.

Going from a 305 TBI to a 355 Super ram with the lt4hotcam and some vette heads. Also going completely forged bottom end and hitting it with about 10lbs of boost from a D1SC procharger. I am only changing over, because I am doing a complete buildup, interior and all.

James

 

Man, I wish I had seen this thread sooner. . . I took a TBI car from low 16's down to high 12's, 1/2 second at a time.

Here's what it takes to run what:

16.20: Mostly stock except for 180 thermostat and K&N

15.70: Add 3" SLP cat-back, gutted converter, pulley, minor mod's

15.40: Add 2500 converter, 3.42 gear, and Edelbrock headers

14.40 @ 98: Add TFS twisted wedge heads, ZZ3 cam (208/221), and Performer TBI intake

13.30 @ 106: Add 350 short block (same cam/heads) and Holley 670 TBI

12.80 @ 112: Add B&M blower at 5 psi and BOOM!!! broken ring lands due to lack of fuel. This, I determined, was the limit of the TBI.

All this was with the stock computer/chip. I ran all the way down to 13.30 with the stock fuel pump also.

Don't waste your time or money on TPI - it doesn't flow as good as a ported TBI intake.

All runs were on 245/50-15 BFG Euro T/A's.

Mike

 

Also. . .

I firmly believe there were many problems with my 13.30 at 106 set up.

The compression should have been 10.5 rather than 9.3. The cam could've been better. A Vigilante converter and drag radials would probably have been alot better than the Dacco converter and Euro T/A's. Also, the Edelbrock headers are JUNK - 4 of the tubes are only 1 1/2". The AS&M's are 1 3/4" - all tubes. A custom chip/program/dyno time/wideband time would've helped alot also.

Hindsight is 20-20, I guess. I was young when I built it and have learned alot since then.

I estimate it could have run around 12.20 at 111 mph with better chosen and matched parts.

Not bad for the ole' junk TBI, huh?

Mike