304 VS SS Twin Turbo

[Watejs06]

Hi All , i think this may belong in this part of the forum

i have a Manual VS SS that has done around 180,000kms .
current mods are
. twin 2 1/2 exhaust
. Alan Gibbs kalmaker computer chip
. 3.9 diff gears

i was just wondering how it would cope with a twin turbo kit running around 6 -7 psi ?


any input would be great


cheers

Jay.

[Sgt Santa Cruz]

PRETTY FRICKEN SWEEETTT lol
but are you planning on just slapping turbos on??

if so i probs wouldnt alot of things do need to be considered i dont want to kill your idea i just dont want you to kill your motor
basic rundown if you need more detail ask away im happy to have an input

things like:
bigger injectors
cam choice (not always the biggest)
head stud kit as i do believe they dont like staying down under a bit of pressure (not sure just heard alot)
what compression ratio will acheive the best results if more boost will come in later
retune
etc etc etc.....

[Watejs06]

the main reason i want to do this is that the SS is just to slow , ive just down graded from a BA GT - P that made 310rwkw.(long story )

i did assume that bigger injectors would be a must , do you what size the stock ones are ?

i didnt realize that i had to upgrade the cam.

head stud kit sounds like a safe move

standard compression ratio should be ok i think , maybe not ?? ( your thoughts )

and yes a retune for sure

[tt460]

You dont need to upgrade the cam, thou it would be better if you did

Standard compression would be fine for a low boost install. if you want to run much more than 7-10psi you will need to lower to compression.

[Sgt Santa Cruz]

depends on how far he wants to take it im fairly interested if you go through with this??
have you thought about turbo size??? whos making the manifolds???

[AirStrike]

You dont need to upgrade the cam, thou it would be better if you did

Standard compression would be fine for a low boost install. if you want to run much more than 7-10psi you will need to lower to compression.

The 304 already has a low compression ratio sunshine. What are you suggesting? 6.0:1?

[Sgt Santa Cruz]

thats interesting what compression does it have standard???

[padrickz88]

Pretty sure it has 8.4:1?

[AirStrike]

Pretty sure it has 8.4:1?

Sure does, any lower and it would be a mega off boost slug.

[Watejs06]

There is a bloke selling a VN SS for 13,000 and it comes with a twin turbo kit so i was going to offer him 2K for the kit , comes with 2 turbos (T04 I think - not real big) 2 manifolds.

i don't want to make huge power or anything , just a bit more get up and go.. it will still be a daily driver so it also has to be reliable.

so if the motor can handle 7-10psi than i might call the guy and see what he says .

or the other option is to though a cam in and change the intake manifold.

[tt460]

The 304 already has a low compression ratio sunshine. What are you suggesting? 6.0:1?

didnt know how low it was, i am surprised how low it is, the CR isnt all thats required for a boosted motor, I dont see any change out of 10k to get a motor built to take good boost. whilst this price might seem dear its still cheap and will take it all day long every day.

Add another $Xk for your turbos mainfolds exhuast cooler, tune, box to handle it, diff axles the list never ends.

[Sgt Santa Cruz]

yeah sounds awsome dude definatly give it a go if its only low boost im just really interested in something for the street not full blown off it head fully mad cost more than a house deal

[HoZy]

Cometec headgaskets + the right tune, on a 2bolt main 304, can take 14psi day in day out on the right setup.

[AirStrike]

didnt know how low it was, i am surprised how low it is, the CR isnt all thats required for a boosted motor, I dont see any change out of 10k to get a motor built to take good boost. whilst this price might seem dear its still cheap and will take it all day long every day.

Add another $Xk for your turbos mainfolds exhuast cooler, tune, box to handle it, diff axles the list never ends.

What else is required?

[Watejs06]

i called the bloke , he doesn't want to sell the kit without the car , so ill have to do some Research and track a kit down.

im sure ill be able to fine one, im sure im not the first person that wants to strap on 2 turbos on the side of his 5L. hahaha

[Sgt Santa Cruz]

dude if you find a kit please let me know id be very interested in doing this to my stato!