Nixon1

Just curious what the 305 & 350 TPI guys are running along the lines of the 1/4 mile. Stock, modified, I don't care...I'd just like to get a baseline of what these cars can do, mainly so I'll know whether I should probably back down or not if I go to race one.

Thanks guys.

norcalz28

iTrader: (13)

I think there is a thread just like this here with some 50+ replies or so. check it out.......

Will

MdFormula350

time in sig.

you can do alot with tpi.

poncho@home

see sig.

prOject-IrOc

poncho. get some aftermarket runners and siamese that plenum. i bet you will pick up a few 10ths.

see sig for times...

iroc22

See sig. 100% bone stock and my first day driving the car. Also that was with a GM muffler that actually rusted and the driver's side tailpipe rusted off the muffler body. The only mod now is a Hooker catback which replaced the GM one and I havent taken it to the track since the Hooker.

DannyT

poncho@home

I am almost completed siamesing the top and bottom parts of stock runners, and have a ported plenum in my possesion. I also received my GMPP 1.6 Roller Rockers. I hope to get everything on by Saturday and if the weather holds up I will make a few passes down the 1/4.

gmgod

Are those times in your sig with the stock cam? Nevermind, I see.

poncho@home

You can do alot with the stock cam!

92blackbandit

14.4 with minimal traction.
Did I mention it was a 305.

redtail2624

14.3 at 98 with a 2.25 60 major traction problems. mine is also a 305.

92 zzz28

My best with the stock 305 TPI was 14.7...

Now I haven't been to track yet, still tuning, but I beat my friend's Cobra with the old combo with LTR. And I recently pissed off a Z06 on my way home from work last week He probably would have won if we could have gone further, but I beat him off the line and had for a bit before he started to catch up...

vwdave

Not to Hi-Jack the thread. I figure this is somewhat related. What would a....

Bone Stock Intake runners
K&N + Ram Air
Mods in sig

What would that do? High 13's?

Hey 92 zzz28, check the link in my sig.

CHEVY_EATER

Man, you must have some serious tranny probs...you should be in the low 13's high 12's easy with all that stuff. See sig for my times...all stock motor, cam, heads, intake, tb, you name it! Even have stock gears!! Just exhaust and a little 'ol Powerdyne..

Nixon1

Lol, yes, yes I do. Stock AOD tranny with 155,000 miles. Only reason it's alive and working with all gears is 1.5 bottles of Lucas Slip Fix and severely bumped line pressure. I used to be able to bark second. Now it's impossible. With barely legal-tread street tires in the back, on a good day with a cold tranny, I can spin second a little ways down the street if I kick her around a corner. But that's about it.

From what I've heard talking to others, I should be trapping between 103 and 105, but I'm only trapping at 100.4 right now, and the best 60' I could yank was 2.345... SH!TTY track.

Ragtop89

I've been to the track once and it was 3 weeks before my fuel pump took a dump.
It ran a best of 13.7 @ 102mph.
It's pretty slow for what I've done to the car.
I need to get to the track again.

Red87GTA

I ran 13.60 on sunday. 1.82 best 60ft 2.77 gears with 28 inch tire, th350 10 inch converter stock tpi except for home made airfoil.

Red87GTA

stock tpi intake I mean, its got an lt4 hotcam and some home ported 041 heads with headman long tubes. there is still more left in it, I switched over to the 808 sd stuff when the maf went bad and have done very little tunning.

Steve89GTA

hey poncho. Sweet setup. What do you think your car would run with the l31 heads fitted with a LT4 Hot Cam and springs? Would you be grazing the 12's?

Ricktpi

poncho@home

4 sure....I might still get pretty close to 12s without swapping out cams.

I just installed a set of 1.6 GMPP roller rockers (10-20 HP min. according to a majority of people.)
I will definately do some plenum/runner work to help her breath (10-20 HP)(not installed yet, waiting to run with the rockers first)
I will not be locking the torque convertor in 3rd(1-2 mph as per debate on thirdgen.org and corvetteforum.com)
Drag radials
Plus some more tuning.

I expect with good weather to run low to mid 13s with all of the above. That's in a fully loaded, full weight TTOP GTA.

All this and I still get over 25 MPG!!!

Steve89GTA

poncho, if you accomplish that, you are my new hero

poncho@home

Hey Steve...what part of Toronto you hail from? I have a some friends there.

About 12-13 years ago I worked in Mississauga for a short while.

I remember the car scene was pretty active at the time.

You run you car? What have you done?

Steve89GTA

The racing scene is downright crazy here. I've never seen as many runs as this summer. I don't run the GTA, I've been focussed on restoring it for the past 5 years. The competition is really tough now!

On thanksgiving weekend, I saw a 92 Talon wipe the floor with a 99ls1 z28 and an 97 ram air trans am.

Got 200,000kms on original 305TPI and runs perfect. No oil leaks, 14.6 in the quarter.

I'm in North York - 5 minutes from Mississauga

Steve89GTA

sup

CHEVY_EATER

My car was AOD, I ran a 14.84@96 then dropped to a 13.80@100 with just the swap and some good shifting! My tranny had 60,000 when it lost OD but still shifted hard. It would chirp 2nd even with 275/40's on back! My best MPH was a 103 with just exhaust, pulleys, and cold air...all else stock. Usually got 100-101 in warm weather. Are you staying auto? Need to get that thing rebuilt, losing alot in the tranny! Mine worked great and I still dropped 1 second and gained 4+mph!

91dubZ28

14.8's with 2.73 gears, I have sice put in 3.42 gears, a t-5, ignition, chip, and K&N's Im hopping to get closer to the 13's soon, with a 305.

Nixon1

1 second and 4 mph with a tranny swap? Wow... I'm a little scared to see what mine will do then if I'm already trapping at 100.4 with this blown piece of crap. The only part that amazes me is how it still has all 4 gears after 155,000 miles, with no tranny cooler. It's unreal. I have good luck with trannies I think.

SLP IROC-Z

iTrader: (1)

Free mods
cat-back
ac delete
headers
exhaust

Sig:

87camaroz28310

i do a 14.9 and i have a longer duration cam and a crappy launch

Zepher

iTrader: (1)

14.1@99mph, 91 TPI setup on top of an 86 LG4 305, Cam, headers, 3" exhaust, MSD box and coil, non-functioning prom.

Bone stock 88 305 TPI Auto with full interior and spare, 15.7 @ 88mph.

llvll4l2c91350

14.61@94 MPH with 191 truck heads

anyone know approx. how many tenths i should drop with these mods if i put the real L98 heads non ported? for those who have seen my dyno graph it's pretty clear how much these heads are holding me back.

formul8!!

The car will run 12's on the stock untouched heads/cam/bottom end. I need to to lots of PROM tuning, T56 swap, Spohn torque arm, 1.6rr's and 4.10 gears.

Best: 13.56@100.23 w/1.900 60ft.

Nixon1

Formul8.....you're trapping at almost exactly my trap speed, and you have a 700-R4, which is the Chevy equivalent to the Ford AOD. So lemme ask you....are you happy with the 2500 stall converter? Or do you think a higher stall, such as a 3000, would have given you better performance?

formul8!!

For a long tube runner TPI setup, I would not go any higher than 2,600 stall.

If you are asking about recommendation for a 5.0 AOD Mustang, I do not have any info for you. The torque characteristics of the engine and trans gearing are very different.

My car launches HARD due to the tons of off idle low end torque,stall speed, non-lockup, and steep first gear.

Nixon1

I was just curious if you were happy with it. Yeah if you're only running 2500 with all that power I doubt it'd be smart for me to go with a 3000. I've only got a 302 and I dont think it has enough power to pull off a stall that high. It has damn decent torque....but not the kind of torque a 350 can get.

Hawk92z-TDZ

Bad traction

CHEVY_EATER

AOD is alot different. 2.40 1st gear which really sucks unless you upgrade to the wide ratio with 2.84 1st gear. You need a higher stall than say a 700R4 since the AOD is geared so tall. I'd get a 2500 at least, maybe higher. Stock is like a 1600. I know guys put 2500's in close to stock cars and it is a good gain.

Nixon1

My main concern is putting too high of a stall in the car....cause if I over-stall it, It'll feel like it's lagging on acceleration and I'm going to lose power too... Stock, my car feels like it stalls at 1400-1500... I can only do a brakestand to about 1200 rpms before the car breaks the tires loose though. Torque is probably in the 350 ft lbs area, since it's 300 ft lbs stock, and my cam is rated to make peak torque at like 2500 rpms but with my other modifications, I'd guess my torque peak is closer to 3000-3500. I was going to do a dyno to be sure, but they ran out of time and I didnt make the list.

D's89IROCZ

15.1 @ 93 w/ 2.2 60 ft'r

91dubZ28

r/t 1.201
60' 2.272
1/4 14.859
mph 93.66

This was with 2.73 gears, w/o headers, w/o ignition, with out prom tuning, with an automatic in the car, stock air filters. I have now added 3.42 gears, hedmen shortie headers, gutted cat, msd ignition, t-5, k&n's with gutted box, polurthane tourquearm bushing, all polyurthan bushings in the rear, and a bumped up chip. Hope fully when I get the car down to atco nov 1st ill be runnin in the mid 14's... then comes afpr, lt1 cam, more prom tuning, and intake porting, hopefully the 305 will see a 13.999 once in its life.

CHEVY_EATER

An E-303 moves the whole powerband up from stock. Stock the motor is 225hp@4200 and 300 ft. lbs. @3200. With the cam it is probably peak torque of 3800 or so and peak hp of 5200.

I have a great book called 5.0L Ford Dytno Tests. A stock 93 GT with the same exhaust I have, MAC shorties, MAC ProChamber, and MAC catback, made these peak #'s:

232HP@5000
284 ft. lbs.@3700

This is of course RWHP but look how much the HP went up in range from the exhaust, and the torque. Don't go by what they list in the catalog for hp and torque peaks, they are not usually accurate.