mines an 86 and I am having it rebuilt soon and my goal is 275hp+ to the rear wheels I wanna use the factory 86 block though what are some good combos/parts I should look into??anyone???

 

headers, good cam, good flowing exhaust, new intake of heavy mods, better heads, a lot of free mods, ignition mods maybe and pulleys...basically if ud have to put a lot into it but it wont be too hard...or toss a supercharger on it

 

The biggest jump in HP per $$$ for a 305 block is to throw in a stroker crank. Makes it a 335 and adds over 100 HP in fuel injected applications according to http://www.enginekits.com.

 

everyone knows that heads, cam, headers, etc are key, i think he is lookn for parts that work well together

what i plan on going with are some brand on 1 5/8" headers(shorties), port the stock heads, port the crap out of the intake and a zz4 cam with mathcing springs and roller rockers....should give me a decent jump in power.....and all for the price of.......................headers, cam, screw in rocker studs, springs......so i dunno, around $500. sounds good to me.

 

this is what im doin to get 300 hp...at least 275 rearwheelhp
edelbrock tes headers
flowmaster exhaust
lt4 cam
edelbrock baseplate and runners
ported plenum
airfoil
AFPR
world 305 torquer heads
maybe if i feel like it ill go further with the 335 stroker kit...

 

what really kills a 305 is the automatic, id swap over to 5spd or even a t56 is u want.

id do world product torquer heads, ZZ3 cam, SLP runners, 50mm throttle body, MAP conversion, SLP headers, MAC cat delete pipe, 3.45 nine bolt rear, T5 swap, ported plenum, CAI, injectors, ignition etc etc

 

how does the automatic kill the 305?
the slp runners are nothing without a ported base at least, a bigger throttle body is a waste of money and MAF will respond better to ur mods and u wont need prom work, in my opinion

 

u ever notice how much slower the automatic versions of 305s are then the standard ones? and in order to acheive 275rwhp with a 305 he is going to need prom work cause the cam hes gonna have to run is gonna be big, a ZZ3 with 1.6rrs even with MAF isnt going to run that great at all and definitly not be at its optimal power output.

 

Got a real dyno sheet of 275rwhp, irocz88x?

 

275rwhp from a 305 TPI is hard. You'll need ALOT of intake/heads/cam to get that high.

Easiest route would be a decent build up with Hyper pistons, decent cam, some good heads, and some Nitrous. That would be the cheapest way to go.

And yes a Automatic does soak up more HP than a stick car. SLP is right..

 

Hey 335, when are we gonna see some dyno #s or track times?

 

well its obvious that the stick will have more hp but that doesnt stand out to me as the killer of the car, thats why i asked, i wasnt saying it wasnt true, i wanted someone to explain further, i dont have any of these mods in my car, i have no money like most people...my list was some of the things i am planning in the next couple years, if u have advice, id be glad to hear it, ive just done a lot of reasearch and talked to a lot of people. as for my pro maf coment, i know speed density is better for performance but again, u dont see a lot of people changing over, or do u?

 

Springtime after the motor is broken in

 

here's about 275 horse Z28

All I did was free mods and SLp headers and ram air

228RWHP about 270 crank horse

 

the whole point with standard or automatic trannys is the cam that came in these motors.standards got the 350 cam and the automatics got the peanut except i think in 85 and also all tpi after 90 .i think they need to put the peanut cam story on frequently asked questions.for us automatic cars there is a huge gain to be found if we just change cams.everyone told me to change the cam when i put heads intake and runners on .now i wish i would have listened .the peunut cam just holds you back no matter what you do.good luck in your engine build.i would use the accell 74211 cam if i was you.that is what i will put in soon hopefully

 

i actually like mass air flow better, its more accurate, but since he will need to tune his computer the speed density design is hella easier to work with, and MAF has its flow limit set in the computer at 255 ga/sec. my car is MAF and will most likely stay that way.

as for the cam debate, many people on here said that all the TPI engines use the same cam, i am a firm believer that they are different for engine type and transmission type like u stated. but the automatic tranny does soak up a bit more hp then the stick, and when were lookin at a 305, they arent puttin out a hell of a lot to start so it kinda puts a big dent in its power. just like a automatic 5L mustang vs a stick 5L mustang, same cam etc, but the autos are known to be a bit slower, like low 15s instead of 14s like the stick version, thats more then 10whp difference

 

yeah man, ive got a 305 auto with the sht cam and i just bought a lt4 cam...i dont remember what the specs were on the stock lb9 auto cam but when i saw the lift i literally laughed out loud, i dunno what they were thinkin...

 

a 175 Shot.

 

I had about 275hp in my little 86 305.
All I had was headers, cam, 52mm TB, dual Cold air, MSD 6A, MSD Blaster 3 Coil, full 3" Exhaust.
Ran a 14.1 @ 99mph with a crappy 2.3 60' time.
Motor had 143K miles on it and used to be a carbed.

 

"What would it take to build 275 hp 305 tpi??"


couple of blowers...

 

what engine do you have.

 

a while ago superchevy came close with a 305TBI camaro i think it was. They used the e-tech 170 heads, a matching cam and did some work to the intake. If memory serves me correctly the car also had 1 5/8s header was still equiped with a cat and a good quality catback. I think there was some prom tunning and a hot ignition system involved too. They wound up with a dyno numbers in the low 200s when the 700 crapped out and then put a T56 in the car and i think got around 250 at the wheels I'll have to dig around to find the old mag

 

A 200 shot of nitrous. j/k, I have a 305 also so I can kid.
Damn, I just read the other responses, apparently Im not the only smart ***.
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Zepher, where'd you get that dual intake for your car? Im in the process(a very long hard process) of adding a Z28 dual snorkel onto my T/A, if Id have known about that I would've just bought one of those.