Turboin` a V6 Questions

[1_johnboy]

I have for some time planned on converting my VG ute or VS sedan to a LS1...but as of the other day went for a drive in a "cough" FG XR6 Turbo "cough" was somewhat impressed with it. So its thrown a spanner into my plans.

So my questions are as follows:

Would turboing the v6 be a better option power/cost wise than LS1in.

My plan to tackel this would be to force my currant 6 untill it dies, then build a motor to suit.

To build a donk capable of been a tame and smooth around town as a cruiser and have xr6 turbo or better performance be buildable with the buick/ecotec.

Another question I have and am sure you guys that have done it before is, turboing a Vee engine -I have seen single turbos running off one bank of cylinders...wouldnt this cause to get more back pressure once bank than the other and cause and uneveness in general running.

[drift-it]

the FG xrt is impressive. i should no im a "cough" ford tech "cough" lol. the difference between the ba/f to the fg is quite noticeable! spool up time in the fg is so fast! even better in the F6.

to original question, you'll get mixed reviews from everyone on V6t vs. V8 however you would probably spend the same amount turboing your 6 to swapping for v8. then theres moding the 8 further. the win win would swap for v8 and turbo that!

[db_notso]

cough? different exhaust housing and better headwork doesnt change what it is~!!~!~!~!~!~! cough......an opinion only
yeah running on one bank will cause an imbalance in exhaust pressure and uneven balance and wear and tear blah blah
rebuilt motor and turbo and fuel and ecu and patience,,,,,

or 1/2 price of v8 (look around) swap to supercharged....... just a thought....

[neet_wagon]

It'll cost you a bit of coin to get a V6 to run as quick as a stock FG XR6T (some of which have run 12 second passes standard).

If you do go down this road then turbo the VS (as the ecotec is a slightly better platform).
For a turbo, youre best bet would be to grab a second-hand XR6T turbo (GT35/40) as this is near on the perfect size for the 3800 V6.

I am currently building a V6 turbo dragcar, and in doing so have found that you can get out of this pretty cheap - however, do it once, do it right.

If you can, then build the motor now to suit the turbo.
Throw some SPOOL rods in it, and a heap of ARP studs.

[drift-it]

cough? different exhaust housing and better headwork doesnt change what it is~!!~!~!~!~!~! cough......an opinion only

i still think its impressive for a 1700-1800kg land yacht! lol

[neet_wagon]

I was shocked at how heavy the damn things are!
Me and a mate couldn't even push mine when it died out at Heathcote raceway - heavy bugger of a thing.

[drift-it]

yeah not the lightest of sports cars thats for sure.

to op: in relation to uneven exhauast pressure, would there be enough room for a twin turbo??? 2x smaller turbos? would give it better throttle response?

[neet_wagon]

yeah not the lightest of sports cars thats for sure.

to op: in relation to uneven exhauast pressure, would there be enough room for a twin turbo??? 2x smaller turbos? would give it better throttle response?

Would the power steering res not overheat?

[drift-it]

hmmm yes it probably would...unless he swapped to ecotec then turbo'd that which has the remote resevoir!?

[neet_wagon]

Shows how much I know about ecotec accessories! I thought it ran the same pwr steer as the Buick.
Learn something new everyday

[hi_ryder]

ive always been a fan of the grand national, that 3.8 turbo'd dosent have the sound of an ls1 but it was the first car to attack the notion of no replacement for displacement. ive got a soft spot for turbo'd 3.8's, but having said that i think your still better off messing with an ls1. youll get a better bang for your buck plus that hellish sound while your doin epic skidz bro fully sick lol. have you seen the ls1 in the vn thread? hit the project section... oh and have a spare 12 grand handy too...

[328FTW]

If you are gunna do it right it'll cost and you will have to delve into the world of standalone ecus to do it right right. Megasquirt is prolly cheapest ifyou know what you are doing and cost goes up from there till you are running a full link, motec etc etc. Turbo size needs to match the motor and be a good turbo(s) that won't blow up like the chinese shit that comes through, manifolds to match, injectors then a good tune on a step colder plugs gapped right.

I have heaps of turbo'd out cars around and they also have this tendency to explode when you push it but I guess when you start pushing past 300hp in a 2 litre with stock internals and high compression something has gotta give.