AJ89Irocz

I have an 89' Irocz with an original 350 TPI.
Im doing an LT1 intake swap, 28lb injectors, AFPR, 52 or 58mm TB, Long tube headers, MSD 8.5 wires, MSD blaster coil, custom burnt Chip.
Current mods are 3" cat-back, 3" Cold Air intake w/K&N, Rebuild and shift kitted tranny. Any ideas on about what HP or 1/4 mile times i could be running with that kinda set-up on street tires. Thanks guys

roughskinjrz

low 17's

five7kid

iTrader: (14)

I would suggest running one that's 1320 feet long. . .

Anyway. . .

Why the mongo injectors? They aren't going to help anything, and will probably reduce fuel misting (liquid doesn't burn - dumping unvaporized fuel into the engine doesn't add power).

You'll probably run mid-high 14's.

AJ89Irocz

14s? Stock the car will run 14s, and the intake im getting comes with 28lb injectors, stock lt1s are 24lbs.

rik89gta

Id say mid to low 16's

AJ89Irocz

a stock l98 will run 14.8 or 14.9, so with headers, a better intake manifold, tuned computer, better ignition, im going to add a second or two? yeah that sounds about right...

brutalform

You mean to say that you will run a second or two better than 14.9s? Or are you being sarcastic to rik89s reply?

mw66nova

iTrader: (13)

that's WAY too much injector for the cam/heads your running. go to the stock lt1 24lb.ers and then learn how to tune it!

AJ89Irocz

So should i just run my 19lb injectors from my TPI? And i really dont have much time to tune im a full time student and work full time, only get to enjoy the camaro on the weekends.

mw66nova

iTrader: (13)

if you can't tune a fuel injected car, it will never run to it's fullest potential.

with the stock cam and heads with the new air flow from the lt1 cam, the stock injectors and bumped fuel pressure might be enough...

CamaroCrazy23

well since no one will give you an HONEST answer i will give you low 14s with the 2.77s really holding you back. The LT1 intake has more power in the upper rpms then the stock tpis stuff so the faster you get to the upper rpms the longer you stay in the power band the fast you could be. I'd say run the 28's and adjust the fuel pressure on a dyno at leat to get your WOT down.

Orr89RocZ

iTrader: (20)

assuming your custom burnt chip is well done, then you have good potential for low 14's to high 13's.

the chip will take care of the injectors. 28's are overkill for that motor but can work if the chip is corrected for them and the fuel pressure is good. however, you might not be running good injector cycle duty or w/e that is.

the gears are hurting you abit with the stock converter. get a 2600-2800 stall and cut low 1.9 to high 1.8 60 foots on street tires, then you will be well into the 13's. probly around 13.7-13.8's. i hit 13.88 with a 1.93 60 with 3.27 gears and 13.89 with a 1.88 60 with 2.77's. most of my runs were around 13.96-13.99 with both gears with a few 14.1's if i didnt launch right with the 2.77s

if you get gears and stall, you'lll really open up

rik89gta

If U just sell your car and buy an Ls1, U will run low 13's stock. And U wont even have to touch a damn thing!

mw66nova

iTrader: (13)

now what does that prove? that your not smart enough to figure out how to make a combo work?

AJ89Irocz

Trust me, if i could i would lol
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Yeah i know my gears are deffinatly hurting me, what gears should I go for? I heard 3:73's are bad for TPI but since ill be running LT1 intake will that make it ok for those gears? thanks for all the imput guys

Kevin Vandevenne

iTrader: (3)

3.73 would work fine with the LT1 intake. Not sure if a cam swap is in the cards, but i'd consider one as well if you are going to be pulling the intake. The amount of extra work is minimal at that point, may as well just do the extra and put a cam in there that will work better than the stocker.

brutalform

Now there is some great advice. Tell a TGO member to sell his third gen, and go buy a fourth gen, on a third gen board. If you can not contribute anything worthwhile, then dont reply.

kylez28

I ran a 14.4 bone stock, I don't see any reason you can't be in the 13's. Well I guess it wasn't factory boen stock but all I had was Kumho tires. Not sure why a lot of L98's are hitting high 14's low 15's stock. Must be run-down.

rik89gta

Now there is some great advice. Tell a TGO member to sell his third gen, and go buy a fourth gen, on a third gen board. If you can not contribute anything worthwhile, then dont reply.


Well I havent heard You reply with anything usefull,,, Mr. Moderator. Dont U get sick of reading posts that say, "what am I gonna run"? Just assemble Your parts, run it, and quit bein such a jag off!

yallwatchthis

injector pulse width or "open time" is controlled by ecm, coupled with MAF sensor and O2 sensor, bigger injectors are no performance andvantage.....with right program, they can yeild very healthy numbers.....concentrate on your local computer geek....3.73 gears/26 in rubber.......prolly 13.5 or so...good luck

five7kid

iTrader: (14)

I WAS giving an honest answer. Mis-matched combos make for slow runs. It's quite easy to "upgrade" some components, make it so they're mis-matched with others, and slow down the car.

But, the real answer is, "Go run it and find out." About the only purpose these kind of posts can possible serve is to predict whether or not you need to take a helmet with you to the track. It's a smart thing to do, regardless, but I'm guessing this combo won't need it to be in compliance with NHRA rules.

urbanhunter44

iTrader: (3)

You're an idiot.

And THAT'S coming from a fouth gen owner!

As for the original poster, get some stock LT1 24 lbsers, some better gears (3.73s at least) and some good DRs and watch some easy mid 13s with good driving.

mw66nova

iTrader: (13)

the WHOLE purpose of these boards is to help folks out. if your tired of reading "what am i gonna run?" posts, then don't read them anymore and let the people who do want to help say something constructive.

AJ89Irocz

For everyone that gave me some good advice and for the Moderators thanks. I cant wait to finish up the lt1 swap and find out what it will really do.
And for the record, im not putting the 28lb injectors on thinking its going to get me more power, i know thats not the cast, i hope i didnt sound that stupid, that just what the intake i bougt came with and id rather overshoot with those then starve me engine with 19lbs. And im Definatly getting a chip burnt by a profesional to compensate for the injectors, egr, vats, difference in runner length from the TPI to LT1 and so on. My self, and i know my gears are killing me and a better converter would help i think i can easily run a 13.6 or so, obviously depending on skill of me at the strip and quality of my burnt chip and so on. When i first got my car i had a Venom 400 chip and cat-back and ran a 9.4 1/8 mile ( with a person in the car ). My 60' were pretty bad i had a best of 2.15. So im sure the converter and suspension mods would really help me out there. But with LT1, MSD ignition, Headers, and a custom tune i think mid-high 13's on in reach but, ill just have to find out, and ill definatly let you guys know. thanks again and anymore advice would be awsome

kylez28

You should not expect anything less than mid 13's.

rik89gta

Hey Ive owned a fourth gen too! And U damnright know an Ls1 will whoop just about any stock block, streetable, naturally aspirated,, TPI combo out there! Hail to the king of small blocks!!!

350tpi5speed

i agree. or you can just buy an ls1 and drop it in your turd gen. with a little cam youll be in the 12s and then you can quit bitchin