blackz281le

iTrader: (-1)

Now its time to hear some of the fastest 350 TPI 1/4 ET's.

Let us know what your 350 stock or modded car does.

Guest

100% stock 89 GTA vert, 62k miles, 14.965 @ 93.07. It could have used a tuneup and would have run faster.

19 z28 92

iTrader: (3)

in the sig!

1989GTATransAm

iTrader: (3)

In the sig and moded. Fixing to go faster real soon.

Kevin91Z

iTrader: (1)

Search this forum and the drag racing forum and you will find a ton of threads with this info.

TPI-Formula350-

13.21@104.63 stock heads and cam... hoping to get some better times when I get to the track soon.

merc3065

Stock L98 TPI 1988
15.083 @92.8mph
Lots of fun that was

1991CamaroRslow

iTrader: (3)

totally stock 87 TPI with ported plenum, base, runner entries, long tubes and duals, modded factory air box, ARAP bin with 2 degrees timing pulled in PE table at 3500 running 3.27's with ET Streets on a turbo 350 trans with a 3000 stall, 13.5 @ 100 off spray 12.2 @ 109 on spray. There are time slips in one of my posts somewhere with the same topic as this one.

blackz281le

iTrader: (-1)

Those are some pretty good times for pretty stock 350 TPIs.
I havn't been able to take mine to the track yet, but hopefully next year.
I am curious to see how my 1le will do. Its pretty much stock besides compcam, cat back, gutted air, and all things that 1les came with. Even though its not really set up for 1/4, I am still excited to run it at the track.

WheelsUp84z

iTrader: (2)

i wouldnt consider that "totally" stock, but nice times, what are you spraying? 150?

1991CamaroRslow

iTrader: (3)

I call it stock because everything from throttle body to oil pan on the long block is still factory original. I borrowed calling a TH350 stock from LS1tech where the quickest stock LS1 in the country had a TH350 that was considered a bolt on I know it's still in the grey area of completely stock with headers, ignition, and such but until I swap something primary that's my story and I'm stickin to it I used to have a .070 jet on the nitrous side (NOS calls this a 150 shot) I upped to a .073 jet with a .043 on the fuel side, car seems to like that. I pulled ALOT of timing out because I didn't have any good gas on hand and didn't purge. With a combo of 2 degrees more timing, some 110 octane 93 mix, and purging in the burn out box I think I could've got the car to make an 11 second pass that day. I'll give it another shot this coming spring, lets hope the weather stays cool and mild.

prOject-IrOc

Stock 1990 L98.
Only mods were a muffler, 58mm bbk throttle body, and a built tranny. Ran 13.997 @ 97mph overheating.

speed88

'88 GTA with a ported MAF, headers, flowmaster 80 series, and some freshened stock heads (I had some work done cause of the normal valve stem problem). I went 14.39 @ 98mph. That was on a street tire with a 2.36 60'. Would have easily broke the 13's with a sticky tire, and combine that with a converter and I would have been well into the 13's.

That was my plan after the summer I went 14.3. I wanted a 13 second slip from my stock L98. So I ordered a set of nitto's and a TCI 3000 stall. Then someone mentioned to me, "why dont you build a stroker motor and skip the 13's all together!". Looking at my sig you can guess what I did!

Sometimes I wish I had stuck with my plan though cause I would have liked to have that 13 second slip from my L98.

MdFormula350

Best time (04/14/06): 60 foot 1.746, 1/8 8.498 at 79.09 mph, 1/4 13.449 at 101.86 mph : Capitol Raceway

info in sig.

IROCThe5.7L

14.8@94 bone stock, leaky injectors, 2.2 60 ft.

14.3@96 Hooker 2055's, Hooker Y pipe, stock catback with an 80 series muffler, 2.1 60ft.

Then I added a AFPR (49 psi), gutted airbox, and bumped my timing to 10. And ran a 14.3@96. No difference at all.

rik89gta

15.41 at 89.81 mph with a 2.31 60 foot. I was running horribly dry-bald street tires and worn spark plugs. My next outing should be better since I've added fresh plugs, Riken Raptor tires, an airfoil, Accel ignition module, and I descreened the MAF. The colder air should help a bit too.

83 Crossfire TA

iTrader: (2)

I ran a 13.59 @ 100 in my ’87 formula 350 with just an SLP cold air and cat back, otherwise stock, down to the 16y/o (at the time) eagle gatorback ZR’s

firebirdjones

88 Iroc 350 TPI with 2.77 gears and stock rubber, 69,000 orig miles. Hooker shorty headers and Y-pipe, Edelbrock catback exhaust, K&N filters, still stock tune along with everything else stock, ran a best of 13.92 at 99 mph. Backed it up with several passes in the 13.90's that day with short times in the 2.2 range.
Soon to be forsale. Larry.

jack harrison

12.9 @ 108mph. that was with 100 shot of NO2. 1.8 60'. heres a clip of the run http://videos.streetfire.net/search/...3600bdbdce.htm

neat

1991 L98, mods in sig-

13.9 @ 101 on motor
13.5 @ 107 on 60 HP shot of N20 from 2nd gear on

bjankuski

12.17 at 111 MPH with the mods in my sig. All stock the 305 5sp went 15.20's at 92MPH.

blackz281le

iTrader: (-1)

thats a good time for the little mods you have.
where are you located?

GTA matt

iTrader: (1)

In sig

1989GTATransAm

iTrader: (3)

Then the question is the Superram consider TPI? Regardless those are excellant times.

firebirdjones

BlackZ281LE,,,,,I am located near Cincinnati, Ohio

Abubaca

iTrader: (3)

No, IMO, TPI only refers to long tube runner set-ups.

1989GTATransAm

iTrader: (3)

Agreed to help keep the thread on target.

Mike97ZJ

I ran my old L98 '88 GTA once. Best run out of 3 was 14.9@93mph. I did a burnout on this run, and it helped the launch a bit.

Mods were cut filter can and K&N, Dynomax cat-back, and underdrive pulleys.

It had 103k on it,and I'm sure it needed a tune-up. It was also about to overheat, thanks to a hot day and slow staging.

That was back in 2000, I really miss that car, I ought to pick up another one.

FormulaL98

The second day i had my car i went to dragway 42! Best STOCK run was 14.74@93.97 with a 2.19 60ft. Added a SLP cold air and march 2-pc. underdrives, 4 monthes later ran a quickest of 14.37@95.10 with a 2.04 06ft.

Hope when i put my cat-back on i run as quick as 83Crossfire lol

83 Crossfire TA

iTrader: (2)

Good luck! FWIW, it’s not as simple as just slapping some parts together and running the number. counting thorugh my run log, looks like I took 39 passes figuring out exactly how and where everything was the happiest, and this is someone that has literally made hundreds of passes before that.

91-RS-B4C-fake?

13.525
I'm real long winded.

short line of BS & Mods are at DragTimes

http://www.dragtimes.com/Chevrolet-C...slip-5874.html

Keep getting close to being car of the month,
but need more voters.
Feel free to vote daily.

Longer line of BS @ cardomain page
each mod & performance gain(or lack of) since 2000
http://www.cardomain.com/ride/2175519

carguy502

iTrader: (2)

13.706 @ 102.059 MPH. Medicore traction on worn Dunlop fm901 tires at 2.084 60ft. 1990 Corvette L98, all stock internals, CAI, 1 5/8 blockhuggers, 2.5" duals, a tune by TraviZ, and nice shifts so I can drive my WC T5 backed Nova home. I am hoping to hit 12s with a Gforce T5, 1.6 RR, and ported intake with AS&M runners to come by the end of summer.

VincentZ28

iTrader: (2)

Check out my sig!

z28freak84

B4c fake? sweet ride... Doin a lot with a little. good work
Guy with the NOVA, you too.
Vincez28, 11 sec potential and LEGAL, SWEET ride.

BigBoi4Lyph

first time to the track yesterday best out of 3 runs was 14.5802.144 - 60 MPH 94.18l89 700r4, 2.77, catback flowmaster system stock mani's and 21.5lb ford racing injectors and no air filters. 23psi in rear tires. what rpm are you guys with automatics launching at with street tires? I was 2000 with no tire sqeel at all i think i could have went higher.

1989GTATransAm

iTrader: (3)

Got my combo down to 12.55 @ 107.87. My best mph has been a 110.96. Still playing with the burnout and tirepressure.

roachjuice

ok its real hard to believe this when this guy below ran a slower time with more mods. the guy i quoted on the bottom has an *** load of mods. so i guess you have some leprechaun motor. like you rub it and it gains power. in my personal experience with the tpi motor they just don't gain power from the mods you listed. sorry. your gonna need more than that.
i believe this
and i believe this.

my old 305 tpi mods
LT headers
Full magnaflow 3 inch exhaust
comp cams tpi cam lift was like 502/510 lift with a 114 lsa and duration was like 224/224
1.6 roller rockers
built trans stock stall
modded air box
no air pump
bbk afpr set at 45 psi
air foil
3:42 gears
mass air sensor gutted
k&n filters
relocated IAT sensor to air box
the list goes on

best time with flowmaster muffler only stock everything was a 15.3@88 mph w/2.0 60ft
best time with all those ****ing mods 15.4@90mph w/2.1 60ft
all that **** did NOTHING to the car. i did everything right. stock tune. someone told me that a tune would make the car come alive. i didn't believe it.
so i got tired of dumping money into a car that wasn't getting faster so i sold the ****er and got into turbo dodges. hell my shadow with stock head,cam,bottom end,block,fuel pump,computer and turbo ran a 13.9@99 through an auto and on a hot *** day.
mods are (i bought it from a friend modded already)
2.2 SOHC
AFPR
little bigger injectors
rising rate regulator
big front mount intercooler (2 stock intercoolers welded together with custom end tanks)
3inch turbo back exhaust
built tranny with stock 3000 stall
modded dsm gen 1 bov
home depot intake
map clamp (tricking the computer to think i'm only running 14.7psi lol)
and 20psi of boost

camz286

Well i dont have a 350, my car has the stock lb9 with a couple of extras, and it ran 14.016 @ 97.39 mph on stock rims and tires. Should have a new 355 crate motor in a bit, so will see how that does soon.

kowboy59

iTrader: (8)

lol 12.9 on the juice. aagagagagag read my sig for more. ima get better. first time at the strip

rik89gta

14.10 at almost 99 with my 89 L98 car. It had flowmaster cat back, cat delete, air delete, air foil, tbc bypass, cai, riken raptor rear tires, and some other petty enhancements.... With a set of headers, stall converter, and slicks..... I don't think mid 13's would be out of the question.

GTA Jim

My '90 GTA L98 is 100 percent stock.

I've only done 5 runs with it.. Our local track had a Test 'n Tune one day so I went out just to see what she'd do.

My best that day was 14.84 @ 92.677

I was having some serious trouble hooking up.. The time I posted above had the least wheel spin.. I think with better tires (Or better driving ) I could have been running around 14.5 seconds.

jack harrison

my new pb is 11.7 @ 118 mph, with 150 shot! stroll on!!!

JulieGTA

In 2004, my completely stock, fully loaded 1991 L98 went 14.56 at 94 mph, street tires with a 2.1 60'. The only thing it had was a flowmaster muffler, and a k&n filter (but I had practiced racing it all that summer.)

Early 2005, I added a TPIs intake manifold, edelbrock runners, all ported, and a better flowing but not larger exhaust. Got a 14.23 at 96 mph another 2.1 60'. Street tires.

In late 05 I went to the dyno and it got 255 rwhp and 319 tq.

in early 2006 I added 52 mm TB, headers, full exhaust (2 3/4,) and a 2400 stall tq converter. Got a 13.97 at 97 mph, with a 1.9 60' (had to give up street tires)

Hadn't raced since last July, in December the old motor gave up (220 k miles).

Latest mods are same as above, rebuilt trans, rebuilt 350, Corvette heads, zz9 cam and had everything ported to match and extrude honed. Still running original rear end 3.23s, same ol' flowmaster. Last week, ran 13.39 at 100 mph, 1.9 60'.

Still needs a lot of tuning, maybe with a new rear end, hoping for 12's by the end of the year.

camz286

One, thing along with the stall converter to et me out of the hole quicker was putting lakewood trailing arms and spohn panhard rod on, plus i put the tires at 22psi, with out that stuff i had a 2.332 60' with the mods, i had a 1.861 60' considerably better the before. This is for anyone having trouble out of the gate.

chevy boi

14.1 with free mods and 3 inch cat back and ported and simised intake, accel 26 lb injectors, fuel pressure set at 49 on 100 octane ,on drag radials

freah mods

port matched intake with slp runners
cut out
100 shot fogger
alstons sub frame connectors
headmen headers

im hopeing for hi to mid 12s

kairles

iTrader: (2)

86 Iroc 14.9 @ 90mph
mods:
rebuilt 350, built trans, vette tc, catback, k&n, gutted airbox, stage 2 hypertech, spun balancer, floating rotor.

90 hardtop formula 135,000 mile LB9/700r4
14.7 @ 90mph letting off. also ran a 14.8 @ 93mph
mods
edelbrock headers, magnaflow cat, 3" exhuast w/ spintech, k&n filter

Jay

iTrader: (2)

14.21 @ 95 mph. 1.98 60ft. 87 L98, 3.27 gears, 200k+ miles on it. Only additions were - Older Flowmaster with 2 on the left, descreened MAF, SLP converter, B&M shift kit, TB by pass, gutted airbox, No AC. Stock suspension, goodyear Eagle GSCs.

The next summer I put the same engine into an 86 Firebird with a T5 and 3.23 gears and ran 14.3 @ 95 on a 1.99 60ft.. stock V6 suspension and goodyear eagle GSCs.

Of course the current car has never been faster than 14.7@ 93mph. did that with the 2.77s and 3.27s. Hopefully it'll be at the track next month after finally getting the T56 rebuilt and the Dana installed.

shocker89bird

Best I recall was a 14.2 at 103.9mph. Stock heads, stock throttle body, holley stealth ram with pos fuel pressure regulator(always rich)(actually this might have been with the tpi intake i don't recall), gmpp cam 480 lift 235 dur. at .500,1 3/4 in headers, 3in flowmaster force II, stock air intake with cone filter at the end.

blackz281le

iTrader: (-1)

My buddy just ran a 14.1 @ 98mph in his completely stock 1991 b4c With over 200,000 miles on the car. I was pretty impressed.

1991CamaroRslow

iTrader: (3)

I really thought more people would be hitting mid 13's with these cars.