Slp Intake Runners. Ram Air, Air Foil, Hooker Exhaust System, MSD Ignition, March Pulleys, Mickey Thompson Drag Radials and T-5 Tranny, Strong 305 TPI... what could I run
14.9 is Stock on this engine so Im guessing Low 14's with a possiblity of High 13's with a good launch and nice cool weather. Feedback.

 

Oh forgot about the Aftermarket Chip - Hypertech

What do u say for Horses and Torque... Cant find a Dyno in PA
Gotta go all the way to NJ for one

 

So basically you've got a catback, some tires and a cai..

Umm mid 14s.

definetly not 275 hp..

 

i have a camaro and i done 62.89 in the 8th 169k on engine slite mod and needed a tune up bad lol

 

Quite a few dyno's in the Cleveland area if want to come this direction.

 

hey he has odviously said, he has more than a cat back, tires, and CAI... i'd say your correct with the no 275, but give the guy some more credit, why do you have to bring people down?
i say 225-245hp sounds right to me, what do you think urban?
but the best way to find a closer dyno to you guy is to do this
in iowa, i got one right about 10 miles away, which really isnt bad, but call machine shops, they sometimes have dyno's...

 

I think he was just being honest, because ram air is essentially useless, an air foil is a marketing gimmick, and ignition components usually only regain lost power at best (the stock ignition is really not that bad, contrary to what people like to think). The pulleys are a waste of money in my opinion.

The Hooker catback will probably help a little but the main restriction--crappy exhaust manifolds--is still there. Drag radials and a T5 give him a good advantage for ETs but overall power is still the same.

I don't really know about SLP runners since I don't have a TPI engine, but without other supporting mods, I doubt it's doing all that much.

Honestly, if kelham is thinking 13s with those mods, I'd say he's setting himself up for disappointment. I'd say a 14.4-14.6 would be a good guess, maybe even a 14.3 if he can really nail the 60'.

 

Dude, shut up...you're a f*cking tool

I trust Urbans judgement just cause I can tell right off he knows what he's talking about. 84Transam305 doesn't. Never go by what he says. Never. And why do I always got to bring you down you ask? Well it's simple, I hate on the weak and stupid and you are both

But to get back to the thread. Yeah, don't look for any high HP/TQ gains. The seat of you're pants feel may go up but in actual numbers, nothing huge. Don't get me wrong adding all that does and will give you a nice boost but nothing over the top. Keep it up!

 

He doesn't have a snowballs chance in hell of breaking into the 13's. He barely did anything to really increase the power. 14.3's at best(which is still respectable for a 305 that's pretty much stock.

 

Hooker catback flows pretty well from what i've heard(unless it's aerochamber), the mickey thompson's will definately help a lot. If you can launch that **** I'm sure you can grab some 14.4's out of a pretty much stock 305, which I must say is impressive.

 

Read my sig, with the exception of the n2o,
my car runs about 14.2-14.3 n/a.

Hate to burst you bubble, dude, but you won't make the 13's, sorry!

 

I say he'll be lucky to hit a mid 14 sec. pass in the 1/4. As for horse power no more then 200 RWHP at best

 

Actually, I have a question...what clutch are you running? Is the stock clutch going to be able to handle the abuse of launching hard on slicks?

 

So, did you go to the track yet?
I went to the track to see how slow my car is and it ran a 15.2@91.5mph with a 2.0 60' on my street tires and stock minifolds/y-pipe (I really should install my headers. )
I think I am putting down about 160hp to the wheels.

 

Those mods might break 13's in an L98 with headers, as for the 305....they don't respond to mods that well like their big brother counterpart as far as exhaust and intake go.

Slp runners are ment for the l98, not the lb9 (tpi was designed for 305)
Exhaust gives it a throaty tone, but only a few horses with the stock manifolds y/pipe in place
Tpi's don't rev high enough to really encounter ingniton probelms

I would suggest a stonger clutch so you can safely get some killer 60' foot times and some headers for a higher trap speed and some e.t.

Then I would work on the heads a wee bit, they just flat out suck much like alot of other head castings from the 80's. ALong with that you could get some 1.6 rr's to bump that cam up a little and make it streetable or you could opt for something mild like a hotcam.

Or you could so S/C and the long tube runner setup doesn't kill itself anymore.

 

I wouldent launch to hard with that T5 if i was you. They are known not to be a strong trany.

 

Did I miss something? What year 305 are we talking here? Big difference between the 85-92 305 tpi cars beacause of the different cams.

 

Eh...if he's got a factory T-5/TPI car, they're all within about 10 horses (they all 87-92 had the L98 cam). It's just the autos that are widely varied.

 

As long as its not an 86 peanut camed car then i agree with TPIFormula350.
190-200 at the wheels and a mid-high 14 at the track would be my guess. Only way to tell is dyno and run it.

 

He has done alot to that car, but nothing 100% useful on the 305 application. If he has an 88-89 305 stick the exhaust will put him right into the mid 14's.. The Air Foil will add a whole 1/2hp but will help a little on torque.

It would have been better to put on long tubes rather than the Ram Air since the stock Iroc intake is pretty damn well perfect for the 305. I dont understand the 3.73's but I am ***uming that he had a 2.73 setup.

Give it some ignition timing, a full tune, change the oil to a lightweight synthetic and launch it. The stock clutch can survive it, how long I am not sure, but It will make a enough passes not to worry about it. I have launched from 6k and lite them up through 3rd gear,, (call bull**** all you want), and it only melted the street tires, no noticeable damage to anything else.

he probably worse off with the hypertech and I hope he has a Maf car.

 

Mid to low 14's, but is ram air good for MPH? I heard ram air makes more power the faster you go.

 

ram-air is only accomplished with forced induction

 

There is no way you could go fast enough to make a difference in your intake. Even if you could, you're car wouldn't be tuned for it.

 

Ram air works off the principal of ramming air down the intake, supposedly creating an increase in pressure similar to a forced induction setup. While it does increase dynamic pressure, it doesn't increase static pressure - which is what a turbo or supercharger does.

At speeds past 150 mph it will increase static pressure somewhat, you'll gain maybe 2% hp.

 

I never seen a stock 305 TPI T5 run in the 14's. I say w/ your mods, your in the high 14's if you can drive.

Zach

 

Thats beacuse most third gens these days are way out of tune.

 

 

There's more than a few of them running around on this board. Shoot, even the old magazine articles on this site have freaking Motor Trend drivers testing a Formula 5 speed/TPI car at a 14.6!

 

i have 2.29 gears in a old cutlass its a cow off the line need recommandations for a gear decent off line as well as top end speed and decent on gas anyone care to help keep in mind i drive to work no racing envolved

 

What he said.

 

WINDOW WARRIOR!!

 

yeah yeah, its established im dumb with in cars expected gains and such your correct... the only claim i can say is thank god i know how to pull a motor, and tear the most of it apart... except OHV engines.. i havent done one yet... only taken the head off of a OHV motor.. my truck.. steve... one day i will find you and kick your 383's *** and laugh as you look at a rusty trans am flyin past you.. we all know a 335 is a very good motor that puts maybe only 20 hp differance between its bigger brother 383.. and if i have to build a 335, 383 one of them to kill your car i will... one day but untill then i bow to your supurier car.. is that what you like to hear..

 

lol @ surpurier

I don't have a 383, made the name when I had my old '86 T/A which had the 383. But dude, as I may have come off pretty harsh before, forget what I said. Just don't post about stupidness and you won't get a stupid answer. Build you're car the way you want and if you have to ask other ppl's opinions on an idea, than you're gonna get flak for it. It's up to you to ignore it or take it. We all have different tastes so if you post something up again and I post saying I don't like it or using other words to describe the way I'm feeling...lol...ignore me.

Back on topic. I have an LB9 in my 87 GTA. It's getting ported 081 heads, matched/ported TPI base, stock runners (might swap out for SLP), ported plenum, 22lbs injectors, AFPR, CAI w/air foil, MSD blaster coil and Module, Full exhaust w/Bullet muffler, advanced timing, 700R4 built for power, 2500stall (any thoughts?), custom tune (dyno) and 3.23 posi out back. The gears kill me I know but it's what I have to work with this summer. Any ideas on power here? The car has no A/C or smog pump and will have full suspension mods minus the TQ arm, A-Arms and K-frame. It has LCA's, LCA brackets, Adj Panhard bar, Wonderbar, SFC's, Eibach Sportlines, KYB GR-2 shocks and struts, Cross drilled and slotted front rotors, some Hi-Perf rear drum brake kit and BFG KDW TT rubber on stock GTA rims.

 

It's very much easier said than done, but I say a cam and headers with a good computer tune (the hard part). The stock L98 cam, even in a 305, is so tame. I think mw66nova has proven you can go pretty far on mildly modded 305 heads (and your 081s are better than his 416s in terms of flow), so I think your cam and manifolds are your biggest restriction at this point.

I'd try a www.tpichips.com chip to start with for a cheap gain. I've used that guy's TBI chips before and they were excellent. And he learned programming working on his brother's L98 Vette, so I'm sure he knows his way around the TPI ECM. They'll be better than an over the counter chip for sure (Jet, Hypertech, etc.). I think they're like $100.

 

Sorry forgot to mention I'm running an LT1 cam with 1.6 pro magnum rockers. Which manifolds the intake or exhaust? I'll have full exhaust with headers, 3" magnaflow cat, inter.pipe than bullet muffler with single exit. Should sound nice

 

EDIT: Never mind, just saw you have headers. Forget the manifolds comment.

I'd search for Tim Burgess on these boards (I think that's even his username). His 305 TPI was pretty quick, well into the 13s with an auto, if I remember correctly.

And if you haven't already, I'd definitely get a dyno tune if you've got a cam in there. Even though an LT1 is not too radical compared to your stocker, you'll see gains.

 

LT1 is good for the 305, I didn't want to buy a cam for this motor only to have to buy another one for the 383 I'm building. So this is a budget build that will be a decent runner and hopefully hit 13's. With the 1.6 rockers the cam comes out to like .477/.489 or something so thats decent with the TPI and ported stuff. it will be getting a Dyno tune. Thanks for the heads up with Tim.