calgutie

iTrader: (3)

So I have my 84 z28 LG4 with 5 speed, my close friend on the other hand has pretty much much a stock turbocharged 2004 Subaru WRX. We have raced and hes just killed me..

On my car the only real mod I have is my hooker headers 3" straight pipes and a flowmaster for sound. What would be additional mods to make to my car to finally beat his little 4 banger.....thanks!

88 5.7 Iroc-Z

bigger engine with decent heads and a cam

calgutie

iTrader: (3)

well yeah dropping a 350 solves everything...but what im trying to get it is in reality what can I do to my 305 to actually have a chance with his car.

midias

Heads Cam tune you need to pick up about 75 HP

cuisinartvette

Poss a converter and a good tire too.

Those WRX if they are the awd can leave about any car sitting at a light they launch real well!

midias

What rear end came with your 5 speed?

calgutie

iTrader: (3)

Yde i know AWD is awsome...which our cars came with that LOL...and NON posi for my rear end I want to install a 3.42 POSI onto it though..

calgutie

iTrader: (3)

*wish

Savage388

The only way youll run with him is if you ditch the 305. You need to get at least 75-100 hp to run with a stock one and that requires some serious work on a 305. get yourself vortec 350 for much less than 305 mods will cost and then you will pull on him all day.

budfreak1

iTrader: (7)

Yep, your wasting your time with the 305. A WRX can run high 13's out of the box, so your gonna need to drop at least 2 seconds to beat him, and IMO it isn't worth doing to an old 305.

88FormulaF_Bomb

iTrader: (1)

1. 2800 stall
2. 4.10 gears
3. drag radials
4. baby bolt ons
5. race!!


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88FormulaF_Bomb

iTrader: (1)

didnt notice u had a 5spd, just some sticky tires and 4.10s should make it a drivers race


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budfreak1

iTrader: (7)

I think your underestimating the Subaru, or overestimating the carbed 305 a little.

88FormulaF_Bomb

iTrader: (1)

maybe, but my friend has a bone stock 2011 wrx that runs 13.80s w/ good driving. and there is a kid on this forum with an 84z28 auto with those exact mods running high 13s


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88FormulaF_Bomb

iTrader: (1)

his name is FJA1791


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budfreak1

iTrader: (7)

Yeah, one of my buddies had an 07 WRX TR that ran 13.7, and all it takes is a tune from cobb to put it into high 12's - low 13's. Legacy GT turbos also run 13.8. I'd rather have power and decent gearing, over a low powered, high revver with poor MPG, especially since I like long road trips. I run 13.5 and get 20+ mpg, I doubt a carbed 305 could match that combo of numbers. And at the price of gas, who wants to give up MPG right now?
I guess the real question is: Does the OP use his car daily? If so, I wouldn't go to 4.10's, unless you have a gas station cashier you like seeing and plenty of money to hand her lol. If not, then go for it.

88FormulaF_Bomb

iTrader: (1)

4.10 w a 5spd on the street is doable and the mpg loss is a sacrifice id be happy to make if itd make my stock 305 beat my brothers c4


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budfreak1

iTrader: (7)

Oh I know it is doable, and it is all down to what you want out of your car and can deal with. The thing will be running high as hell at 75-80 highway speeds, which will be annoying (to me at least), and then there is the MPG loss. If your willing to deal with that though, more power to you.

88FormulaF_Bomb

iTrader: (1)

an auto w 4.10s and 2800 stall would be unstreetable but the 5spd and 4.10s would be ok and really fun to drive. and would upset many fools on the street.


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88 5.7 Iroc-Z

I had a 1985 T/A with a HO 305, hooker headers, 600cfm 4 barrel, 5 spd with 4.11's out back and I'll say this: it was a very fun car to drive and the throttle response was ridiculous, but if at any point you went wot in 1st it would be spinning. I even had time slips from the previous owner, and he couldn't get it out of 18 second 1/4 mile times. Maybe if it had slicks it would have been faster, but to give you an idea his 60' times were something like in the 3sec range, now obviously with a better driver it could have been quicker but I don't see it even coming close to an STI

88FormulaF_Bomb

iTrader: (1)

18s!? my stock 86 t/a 305 auto ran a 16.70


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86Z

iTrader: (4)

you missed the point, the gears resulted in no traction which gave shitty 1/4 times...

i'll race the subbie with my 305...

88FormulaF_Bomb

iTrader: (1)

i understand now but when i first answered the OPs question the second thing i said was about needing drag radials


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88FormulaF_Bomb

iTrader: (1)

the op is a student wants his 305 camaro to beat an 13sec car. a gear and new rims and tires is gonna cost a lot less then building a 355/383 and swapping it. then snapping your t5 like a twig.


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Savage388

Who needs to build a engine to run 13's. a bolt on vortec 5.7 should have no problem running high 13's and unless hes an idiot the t5 will be ok. mine doesnt have a problem. Im also a student so i know how tight money is but its more expensive to get another daily because your little 305 isnt streetable anymore with 4.11's and slicks.

budfreak1

iTrader: (7)

What is cheaper in the long run, especially considering he lives in Cali., where gas is outrageous? Do you want a 350 you can just cruise in and run 13's, or a 305 you can't afford to keep gas in?

ninetyone

iTrader: (2)

an 84 z28 should already have 373's

ninetyone

iTrader: (2)

LT1 with bolt-ons might do it

budfreak1

iTrader: (7)

Depends on tranny and engine and options. He might only have 3.23. Plus he only has 150 HP, so not sure if it would happen without major mods, or making it damn near unstreetable.
https://www.thirdgen.org/1984-chevy-camaro

budfreak1

iTrader: (7)

A stock LT1 would probably do it, mods would just assure it.

calgutie

iTrader: (3)

jaja also ill just borrow my buddys corvette then lol....and i wish my 84 had posi but it doesnt. ,.

ninetyone

iTrader: (2)

those wrx's are quick

Thirdgen89GTA

iTrader: (5)

An LT1 with mods, aka bolt-ons would destroy a WRX. Especially if the WRX owner wasn't willing to rape the transmission at launch. The extra drag of the AWD system limits most stock WRX's to the 94-98mph range. Just about every stock LT1 I've seen traps 100+, there are very few that won't.

Most LT1's with bolt-ons on street tires trap in the 103-106mph range and run bottom 13's assuming an idiot isn't behind the wheel. 12's once you get into stall/tires with the bolt-ons.

Now, if you start talking about upping the Boost on the WRX which is very easy to do, then the LT1 with bolt-ons may not be enough.

This post is a good example, he's not hiding anything and no-one on NASIOC is calling him out. And they'd do that if he posted some BS fast times.

http://forums.nasioc.com/forums/show....php?t=1461141

But the WRX by itself can go very far on a stock turbo.

Turbo guys talk about bigger turbos. LT1/LS1 guys talk about bigger cams because the heads/intake can take it and love it.

Stock LT1 vs Stock WRX is a drivers race, though the LT1 will likely trap faster, and the WRX will have a better 8th mile time. The LT1 will need to run down the WRX.

rx7speed

come on that is hardly unstreetable. at least you guys have overdrive. imagin 4.10's on a TH350. Gas was measured by the gallon but rather by the second.

Makeemmad

Best Bang for dollar..... 125 shot and some tires, he is over with!!! No need too spend a million dollars too beat some subaru!

ninetyone

iTrader: (2)

Hey that 84' already comes with 373's.

Thirdgen89GTA

iTrader: (5)

Hardly, 3.73's is plenty fine for a street/strip oriented thirdgen. Especially if you start using a taller tire.

TPI won't sing to 6500 like an LT/LS will, but can easily make power in the 5500rpm range with aftermarket stuff, and the 3.73's will put him in the powerband passing through the 1/4 mile traps.

As far as highway goes, the T5 and the 700r4 have fairly close OD ratios. T5 is .62:1, and 700r4 is .69:1.

ninetyone

iTrader: (2)

I just realized after that first post that he had a non-tpi (older thirdgen). I was referring to the first gear of a 700r4 . It has a 3.06 ratio!! much different than a T5's.

ninetyone

iTrader: (2)

Put it this way ,when i put 342's in my car, 1st gear was almost unusable,but that is true for a tpi car.

Redchevy808

Just get a turbo kit too lol

calgutie

iTrader: (3)

jajaj turbo!!Well IDK if you guys hard of the SocalS

calgutie

iTrader: (3)

IDK if youve guys have heard about the socalsubies website but anyways they always have meetings in camarillo, CA and I always go with my friend which has a subaru dam..they got some crazy sh*t dropped into those little engines its insane...from launch control, all the way to the headers they got....I still love my camaro but I dont stand a chance =(

bluers91

350 is the answer. 305 will take lots of mods to only keep up. Think Headers, Heads, Cam, Intake, Posi. $

1MeanZ

iTrader: (9)

When I had aluminum 113 casting vette heads, 214/224 cam, shorty headers, 5spd and 3.23 gears my IROC went 13.70 at 101mph with a dumpy 2.2 60ft. Heads and cam on the 305 and you'll have him covered if you already have the exhaust done. That was done with stock TPI and the stock chip and I got 25mpg consistently. With a Q-jet in good health you'll be better off than I was with my TPI given my cam choice.

lot of ignorance about 305s in here. It's a small block chevy just like a 350 and they respond to the right mods. It cost me a LOT less to do heads and cam on my 305 than it would have to build a 350. In the real world a mid/high 13 sec car will stomp damn near anything but a brand new vette, camaro or mustang. I beat every TPI 350 car I raced modded or not. I was toe to toe with good drivers in LS1 6spd cars, beat mild bolt on LT1 cars, destroyed 4.6 mustangs and wasted lots of old muscle cars unless they really had good engines built. Shoulda seen the guys face when I pounded his 396 Chevelle....

plum92_camaro

Back in the day my friend bought an 04WRX new and it ran 14.1 stock and the transaxle or whatever was rebuilt under warranty due to the hard launches. You could just keep racing til he breaks!

I see this thread is getting a lil old but these guys are all correct, it's gonna take a lot of work /$ to get any 305 to 14.0. If you want to stick with the 305 that's up to you but a 350 build would yield better results.

There are 3 ways to do any job. Good fast and cheap. Unfortunately you can only choose 2.
Good and fast is never cheap
Cheap and fast is never good
Good and cheap is never fast

cuisinartvette

Gears and slicks are a waste he will still outpower you everywhere.

Save your money and build a beast.

jordanandrewkay

Idk my buddy had an 08 wrx and we took it out just making people look retarded. the only vehicle that honestly can say they had us was a lightning on the bottle. by 3rd gear at around 65 he'd start pulling hard. we made a 300zx look like he wasn't racing at all and gave a 06 turbo mustang 4.6 a few really close runs......point being.....his was stock and weighs more than an 04. it may take a lot more work than ya think to keep up with AWD. love my GTA. but those wrx's and sti's are some pretty quick machines.


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88FormulaF_Bomb

iTrader: (1)

I based my answer of gears n slicks off of another member that ran a 13.8 with a stock motor 84 z28 w/ 4.10 gears and a 2800 stall and radials


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calgutie

iTrader: (3)

Just FYI Me and my friend raced again flat out drag....and he just murdered me completely...... sad day for me =(

SiCkRs

iTrader: (6)

let me race him with my 4.8