Back to shop ↗
THE HOLDEN COMMODORE FORUM

HOLDCOM Community

Built around the cars. Kept alive by the people.

+ Start a discussion
Holden Commodores gathered at Holdcom
Forum Home›Technical help
Technical help

G'day every one, engine question!!!!!

Started by GRaNT · 2 Oct 2002 · 16 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts.

GRaNTArchived member
G'day all! just wanting to get your suggestions on modding an 86' VL executive i have about $6000, and am open to all suggestions! i'd say an engine conversion will be on the plate, which engine would you guys suggest for this price(including labour)???? do you think the RB30ET, or is there another engine/hybrid that you would reccomend?eg keep the engine, replace it with a different model head? CHEERS GRANT
0 likes
XSPSIArchived member
go over to the for sale section as someone is selling a complete motor and computer(still in car)
0 likes
GRaNTArchived member
yeah, i realise it would probably be a better idea, except, that this car is looking really good at the moment!
0 likes
njprawArchived member
ABOUT ENGINE SWAPS IF U WANNA SPEND 6 GRAND LOOK AT A JAP IMPORT ENGINE RB25 DET OR RB20DET BOTH MAKE **** LOADS MORE POWER THAN A WORKED 3LT AND IF YOUR A HANDY MAN U CAN DO MOST OF IT YOURSELF THE HARDEST PART IS THE WIRING GET A GOOD AUTO ELEC DO IT ALLMOST EVERYTHING ELES JUST BOLTS UP AND U CAN PICK UP A MOTOR FOR ABOUT $3.000, OR KEEP AN EYE OUT IN THE TRADER I JUST SOLD A RB30 DET OUT OF MY CALAIS MOTOR BOX AND LOOM COMPUTERS AND ALL $1500.
0 likes
twinvlArchived member
Yeah petros is right! But with $6 up your sleve u can't go past a RB25DET front cut, bout $4k with manual trans, look around might find 1 cheaper or with a few mods already. Fairly easy, D.I.Y. The rest will go on diff, brake and suspention u/g's but then u will have a pritty sweet ride Some original photos have not been recovered yet.
0 likes
HOLD64Archived member
Quote: Originally Posted by njpraw ABOUT ENGINE SWAPS IF U WANNA SPEND 6 GRAND LOOK AT A JAP IMPORT ENGINE RB25 DET OR RB20DET BOTH MAKE **** LOADS MORE POWER THAN A WORKED 3LT WTF!? ..do you know what your talking about? A worked RB30 will crap all over a stock RB25DET! Some original photos have not been recovered yet.
0 likes
PSI-03lArchived member
Yeah i agree with you HOLD64, a stock RB25 still only puts out about 190 flywheel kW and a stock RB30ET makes 150kW and you dont have to do anything but turn the boost up a bit to make the same power as an RB25. njpraw you said you sold an RB30DET for $1500 are you sure it was a double over head cam RB30???? I would love to line up against a stock RB25 to see if the worked RB30 could win Some original photos have not been recovered yet.
0 likes
cmeflyArchived member
hey I getting a RB25det with five speed, this week to go into the vl calais. The whole front cuts cost me $4200 with a tail shaft to go with it. Thats the cheaps price I could find.
0 likes
vl666Archived member
I do not run a turbo but I have the RB25 head on the 3lt block. Output is 110kw @ the wheels with 370Nm tourqe. "Everyone forgets about tourqe". The RB30ET I think has about 200Nm. Thanks for coming. They say that 150kw @ the flywheel is 100kw at the wheels. Take away 1/3 basically. I have had the chance to go up against a VL turbo, I have no idea if he was stock or modified. But in comparison I have one comment - "Go twincam all the way". twisted
0 likes
SLIPPERY VLArchived member
RB30ET has 295 NM
0 likes
vl666Archived member
Is that @ the wheels or flywheel. What about kw ??? Do you know what it is ?? Just for the record I ain't knock'in turbo's. I would like to forc feed my engine one day. But many things to be considered at this point in time. 8)
0 likes
SLIPPERY VLArchived member
295Nm at the flywheel and youve already answered your question in kW by saying 150 @ the flywheel and approx 100 @ the wheels (every car is different) Some original photos have not been recovered yet.
0 likes
vl666Archived member
[and youve already answered your question in kW by saying 150 @ the flywheel and approx 100 @ the wheels (every car is different) Every car is different meaning ? Would not be more than 5kw surely. Do you know what your car puts out ???
0 likes
SLIPPERY VLArchived member
well, what i mean by every car being different is that, sure, they came with 150kW @ the flywheel, but, the manual would say have 100kW @ the wheels and the auto 95 kW@ the wheels. what im trying to say is that the drivetrain loss between each car isnt going to be the same due to many factors with one being transmission selection, another one being age, compression etc. thats why when people ask "oh, whats blah blah kW @ the flywheel worth at the treads", you cant give a definite answer due to the factors and such a statement is only an estimation thats what i meant.....im sure you knew that already dude but just wanted to clear it up hehe Some original photos have not been recovered yet.
0 likes
vl666Archived member
thats what i meant.....im sure you knew that already dude but just wanted to clear it up hehe[/color][/quote] yup I know what you mean. Some original photos have not been recovered yet.
0 likes
SIK VLArchived member
id look at it this way. u can pick up an sl turbo 4 about 5-6 grand. u could swap the bits over u really like to the turbo and sell the na. Considering u get about 4 grand 4 the na. U could do some serious mods the the new car. Or keep the 6 grand. Sell the na. Thats 10-11 thousand. There are plenty worked calais turbos going around with all the work already done 4 about that. i think it would be really hard to sell a vl 4 more that $11000 despite thousands in recipts. Most vls dont take much to look good anyway. I live in adelaide and ive come across 4-5 vl turbos auto and manual in good condition mechanicaly good 4 around the 5-6 mark. even one for 4800. and it was mechanically ok. Just had too many kms and was boosted and the guy hadnt even bothered to wash it.
0 likes
vl666Archived member
Well I suppose you could do it that way but some people ie. myself like to start from scratch and work up from there. As you could probably understand. The engine conversion on my VL was done in Adelaide. My sis also lives there so I know Adelaide a little bit. I am from Canberra.
0 likes
Sign in or create an account to reply. New members are welcome—no purchase or old CT account needed.

Who’s online

0 members and 0 guests active in the last 15 minutes

No signed-in members active right now. Guests are welcome to browse.

Visitors Today1

33,602 threads, 484,230 posts and 24,897 images saved from CalaisTurbo.
As at . Recovery is continuing.