turbo or not????

[gavb90]

hi all im only new to this site and i have a vr commodore with a nice body kit now it just need some balls so i got another v6 engine that im going to work on. but im tossing up betwene 3 options so if you guys can tell me which option out of the 3 you like and where i have gone wrong and a estimate of kw that wood be fantastic

option 1. forged flat top pistons 40 thow over, forged valves, strong valve springs, a bit of head porting, a stage 2 cam, forged conrods, custom twin throtal body intake menifold, bigger injectors, possibly yello terra rockers and last of all exractors

option 2, i have a small garrett bb turbo and a evo 6 turbo so basicly the same mods as in option 1 but with low compresion pistons. i was going to use the 2 difrant size turbo's so that the samll will spool up quick for lower rpm and the evo turbo for higher rpm.

option 3. exacly the same as option 2 but with the singe evo turbo only.

what are your thorts on power and which do you think i should go for?

[westbad]

dont waste your time and money on the V6... convert it to V8 then bolt the turbos on

[gavb90]

dont waste your time and money on the V6... convert it to V8 then bolt the turbos on

i dont no why but i love the idar of building a v6 plus i already have the v6

[calais24/7]

Supercharge it mate

[gavb90]

Supercharge it mate

haha how did i no somebody was going to say that but i already have the turbo's so im either using the turbo's or rebuilding it N/A

[westbad]

dump the 6 in the bin build a wild twit turbo 8!!

[VRStato64]

well depends if money is an issue. try and get a estimated cost for each of ur setups and go from there. i would go single turbo, 2 would be alot of stuffing around

[kane88]

You've obviously already made up your mind.
Start simple - single turbo setup, low boost - and build from there.

[Cheddle]

what exactly is the garret turbo?

The evo 6 turbo would be good for small boost and would be cheaper to use than a twin setup... however if u decided to go to twins you would need to replace most of the intial set up...

IMHO. use the evo turbo! get some supercharged injectors, supercharged ECU and an intercooler, just watch the boost on the evo turbo im not sure what they are gated to stock... around 2-5 psi would be all your could run but this would be quite a punch and would spool very very quickly (insta-boost)

a friend of mine turboed a VS auto with a KKR-560 (large turbo designed for 300 rwkw) and that was on boost at 2,000 rpm and destroyed a 350z several sets of lights in a row :-)

[VN_Luke]

I agree with kane88

don't bother building your motor for starters - it's just lots of money spent for very little reward.

best thing (in my opinion) to do, would be to start with a cheap and simple turbo setup..

- xr6 turbo turbo, internal gate
- front mount 'cooler
- home made piping etc
- 3" exhaust
- big injectors (36lb MINIMUM)
- 2 bar MAP sensor
- professional tune
- bigger fuel pump (if you're aiming for over 250rwkw)

Could probably realistically get most of that done for under 5k if you can do all the work yourself.

A mate of mine is running a very similar setup to this, and is making 250rwkw @ ~15psi. With 4.11's and a t5, it's more than happy to do 4th gear skids everywhere.

The only issue he's had is a blown headgasket, presumably due to the car running a bit lean with the starndard fuel pump (@250rwkw the pump just couldn't keep up with the fuel requirements in the top end)

Anyway, since then he's fixed up his fuel system with a bosch 044, and has had no issues.

Then after you've played with the turbo setup, worked out what you like/dislike about it, etc, you can go and build a motor with that in mind ...

(that's if you even end up bothering building a motor!)


p.s.
don't forget to budget for a built auto, or a good clutch ... and diff!

[W84N01]

My own preference is to stay N/A............i don't like the turbos or the superchargers.

I'm in the burnout scene and i have seen that many burnouts from cars with turbos, superchargers and N/As............and honestly? More cars that are N/A win the comps than the ones that have that extra help. Sure they do a superquick burnout, but they are just not as good as the naturally aspirated ones.

You need to do what you think is best for what you would like to build it for. Plenty of N/A cars pull real quick times down the quarter aswell.......maybe do some research and have a hunt around and read about other peoples cars both aspirated and N/A.

[gavb90]

exalant thanks for your help guys and i think im going to stay n/a not as much stuffing around any tips on building a n/a engine?

[Weapon]

i would say that there would be more stuffing around building up an n/a engine compared to that of a single turbo.
personally i dont think its worth building up a buick to run boost as the buicks are cheap as chips so if you do blow 1 its no big deal, just tweak with the psi (9psi with an intercooler would be nice imo)