Hi all. I'm looking to see what kind of times people are running with stock or nearly stock 350 TPI cars. I know what to expect, so i'm looking for actual elapsed times.

Thanks,
TurboSteve

 

I ran a 14.96@93.1 with my convertible. The engine is all stock with 63k miles, and thats how old almost all the parts are

Yes, it needs a tuneup. If you cant break into the 15's, something is wrong. Should be able to run mid 14's.

 

ran 14.6@96 mph with !cat, catback and chip tuning.

 

Completely stock. Only had SFC's welded in...

 

mid 14's is typical.

 

minor exhaust work (no headers), a stall converter and drag radials, and some free mods. everything else is 100% stock. best time so far: 13.16 at 103.58mph with a 1.76 60ft.

but im doing it in a Vette

 

I have to say that's pretty impressive....What are the free mods you have done?

 

Ran 14.4 @ 94mph. mostly stock and it was the 1st run with the car. lookin to do better on SLP day

 

1st run in this car, had a gutted interior and that was it. 14.3 at 96 mph. On some 15" radials. The car runs way lean and needs to be tuned or at least have a new chip burned for her. But I think that with some 555's and tuning she might have run a 14 flat later that night with the cooler weather. There are so many factors that affect ET's

Will

 

in signature

 

13.9 with a 2.59 rear gear and stock 1600 rpm stall. this is in a 87 vette though.


Current Mod List:
Mostly stock all free mods K&N open air box, MAF descreened, TB Bypassed, 160* T-Stat, Accel Super Coil, 12* degree advance timing, and No Mufflers.

 

Stock I ran a 14.8 @ 94 with 2.77's and a 2.2x 60ft



Hoping for a 14.6-14.7 with some colder weather and a better launch.

 

Im buying an 88 GTA w/ a TPI 350 in it and it only has a shift kit and a flowmaster exhaust.The guy im getting the car from says it ran a 13.4 in the 1/4 mile.Is that possible???

 

wow.. 2.59 rear? combine that with a 6spd and you could probably hit 35mpg!!!

*305 guy steps out of the room*

 

nope. either theres something else hes done to the car, or hes lying about his times

 

Sounds more like a 14.4 would be in order. Although with that setup I would not doubt low 14's if even a 14 flat at sea-level. Depends on the gearing too. He could have changed that, and it would be damn hard to tell. What do the rpms read at around 65mph??? 2.77 ususally is just under 1800 rpms, 3.27's would be a bit higher. anything higher and it could be some 3.73's or better

Will

 

I think the guy told me it has a 3.73 rear.

 

I only have 1/8th mile times but it seems my car runs a lot better then most stock L98 cars here. Kinda wierd actually becuase the closest i've found (and better at that) is SweetS10v8. But i don't even have SFC's, It is completely stock down to paper filters and when i ran it was with street tires, and no track prep at all.. just drove it there like i do everyday. So comparing my 1/8th times with SweetS10v8's times I should be right there with him at around 14.2.

What gets me though is how he runs a 9.06 with a 2.02 60ft at 75.6 when I run a 9.09 with a 1.93 60ft ad trap at 76.7

But maybe the previous owner had done some work to my car that wasn't mentioned.. I dunno but as far as i know it's bone stock, because I'm too poor to mod it

Dave

 

Only way to find out for sure is to run it at the track. LTR setups are deceiving in the 1/8 mile because of the serious low end torque. They (stock anyhow) run out of breath after the 1/8 mile mark and stop pulling hard. I believe that is why so many people on this forum run the 1/8 mile. Their LTR allows them to beat some cars that would run them down before the end of the 1/4 mile. I am not impressed with the 1/8 mile because I, like NHRA dragracers, am a 1/4 mile guy.

 

If i had a choice I'd be at the 1/4 mile track too, but it's like 3 hours away instead of 30 minutes to the 1/8th mile track, and I have 2 to choose from at that.

 

tpivette89,

Seeing you are Delaware, I'll bet your cars get the "Cecil Mod".

 

haha, ive heard about that... not sure why that track is considered a "mod" though. its roughly at sea level (90 ft above i think) and its the standard length. its not like its downhill or anything. however, i was at Capital a while back and saw a Vette running 13.2s. a few weeks later i saw him at Cecil running 13.0s. some tracks are better than others i guess

 

yea, some tracks prep better

 

best of 14.86@90 2.1 60'
3.45 one legger
flowtech headers and y
2500 converter
bald radials
full wieght
homemade cold air with k&n
and running like @$$

305 hahaha

 

Before it was totaled my '91Z 350 TPI ran a 14.14 @ 98 mph.... The only thing unstock was the air pump system delete.

 

305, sig, minor bolt ons and free mods otherwise stock.

 

14.02 @ 99.6 mph with a 2.0 60 foot time on Pep Boys Ultra Zs at Beech Bend in Bowling Green, KY.

Also a hand-full of 14.0xs at anywhere from 98.0 to 99.5 mph on 2.0x 60s to 2.2s.

1988 GTA, 350, TPI (stock parts-except port matched) 1.6 roller-tip rockers, stock cam, headers (have used both Edelbrock and SLP 1-3/4" with no difference), no cat, Edelbrock cat-back, pocket ported heads with 3-angle valve job, home-made ram-air, 3.27 BW rear, full weight, spare still in nothing taken out (well, except fiberglas rear spoiler) and my lard-azz rump.

jms

 

14.29@96MPH all stock except Nitto 555Rs, no performance mods not even a K&N

 

hehehe.....i get on average 20 miles a gallon split between hwy/street racing/drag racing cause there is no city driving. it's either WOT or on the brakes

on road trips i've gotten over 28 mpg and still pulling 1.96 60' times on 17" GSC's and they are old too boot

with the new front Y pipe i added and free flow cat i'm hoping for a 13.6 maybe with some colder air like it is tonight (55 degrees at 10 pm or a bit colder) 13.3's to 13.4's?!?!?!

 

The previous owner said he ran a 15.3? on bald tires. It chirps tires really bad, I'm either too new at driving "Right-Wheel-Drive" or it can't get any power to the ground, where it belongs. Squealing tires are for losers who like to turn heads. I want speed, not noise. Oh, it's bone stock, too.

 

I have not once chirped the tires. I don't know if its my gearing, or whats going on. The power seems to be there, the tranny is less than 6 months old. Has a mild shift improver, but not a full on kit. It shifts hard from 1-2. But has never barked em...... I guess I like it that way, but alot people are surprised it is so low-pro.

Will

 

The 91 had the tranny rebuilt b4 i got it. It has the same, mild shift improver. Its nice and firm, and if its cool, the trans pulls hard enough that the tire just does a spin, not a chirp into second. the 14.4 and 2.0x 60ft was on pepboys futuras and a worn out posi.

 

My 91z28 350 car went 14.24 bone stock in 1991 when I first bought it!

 

My posi is owrn, might this be holding me back??? I have noticed only one wheel spinning

Will

 

Will, you posi would be a possibility, but i think those 2.77's hold you back even more.

 

Here's the mods:
58mm Tb, free mods, Rebuilt B4C 700r4 w/ dacco 2000 stall, smog delete, air delete, mac underdrive pulley, and a ravin muffler.


Ok, first run..

1/8: 9.139
MPH: 76.09
1000: 11.912
1/4: 14.273
MPH: 95.39


Second run..

1/8: 9.028
MPH: 76.24
1000: 11.803
1/4: 14.146
MPH: 96.09


Third & best run...after i pulled out my Air filters:

1/8: 8.908
MPH: 76.72
1000:11.667
1/4: 13.998 !!!!!!!!!!!!!!
MPH: 96.44

with a 1.902 60'!!

I was happy when they told me i couldnt run again because i needed a helmet. lolz.

 

Ya the 2.77's are not exactly the greatest gear ratio for the 1/4. But I do have another 9 bolt disc rear with 3.27's that I am going to be swapping in soon. I only wish I could have found that 3.45 geared rear that I hear so much about. But I think a working posi with 3.27's should be a very nice combo, and mild enough for my daily driving.

Will