Ecotec to VN/VP

[HoZy]

Conversion:

What You’ll need to fit to the ECOTEC Motor from a VN/VP Motor:

• VN/VP 5ltr Kick down Cable
• VN/VP MAT Sensor
• VN/VP Coolant Temp Sensor
• VN/VP IAC
• VN/VP TPS
• VN/VP Knock Sensors
• VN/VP Oil Pressure Sensor
• VN/VP Lower Radiator Hose

Other things needed:

• VS Brake Vacuum Hose
• VS Upper Radiator Hose
• VS P/Steering Reservoir
• VS Accelerator Cable
• VS Intake Pipe

• To fit the MAT sensor to the ECOTEC Plenum, You will need a `14x1.5 Tap` Acquirable from most metal work places. I used that and tapped it to the Driver side center of the intake manifold

• The coolant temp sensor on the ECOTEC is on the front of the engine just under the thermostat. The ECOTEC uses a 3/8 npt thread where the BUICK is an 8mm metric thread. To overcome this in my car I have drilled & tapped a 3/8 to 1/8 reducing bush & used as an adaptor.

• The fuel lines on the ECOTEC are designed to clip on the steel fuel lines, however the earlier model cars don’t have the right connections & there is a bit of messing around to get them fitted. While the main pressure line will take a 5/16 fuel line when it is disconnected from the rail end, the return line is smaller. You will need to leave the nylon inner on the barb on this one & push the 5/16 return line over it.

Aswell you may need to get a tune, It runs quite well on the VN's memcal ATFY but on the VP memcal, Don't remember the letters it should run better because it does not have as advanced timing because the ECOTEC runs more timing anyway.



From those few steps, Everything apart from that is pretty straight forward.

You can get a Custom Y-Piece made up to go from the Manifolds/Extractors to Your Cat back exhaust for $100-$150.

If I have forgotten anything that anyone need's to know, Please let me know...

EDIT: WIll be Including any pictures I took while doing the conversion ASAP

Cheers
MaT


P.S- Now if anyone comments that mine does not run right I'd like you to prove it. People have asked how to run it like this, I'm just stating it.

Pic 1 = Tapping of the Inlet Manifold

Pic 2 = Before with VN V6

Pic 3 = After Finished Conversion

[JD]

how about that gas incident you posted up under general? ( jks )

but on a serious note this should be a sticky!

[1vngal]

Or in the how to section

[HoZy]

I'd suggest leave it here for a few days so the people needing can view it, then it be moved and/or stickied. That way I can keep adding to it.

Cheers
MaT

[Matt_vp]

good write up mate, thanks i've been thinking about doing this conversion for a while.
Matt

[Emackulation]

VN motor looks so much better then ECOTEC. Haha. Good post Hozy, about damn time aswell.

[Shortstuff]

You used all the original sensors off the Buick V6, so does that mean there was very little mucking about with the wiring? Just extending of some parts of the original loom?

Also have you got any pics of the fuel lines where the VN stuff meets the Ecotec stuff?

[HoZy]

You used all the original sensors off the Buick V6, so does that mean there was very little mucking about with the wiring? Just extending of some parts of the original loom?

Correct, All the original sensors must be used because all the VS-VY ECOTEC sensors output different voltages/signals meaning the VN/VP's DELCO 808 ECU will not log it, Causing it to run incorrectly.

Cheers
MaT

[Shortstuff]

Ok. Thanks! Looks like the engine in mine has had it so I might have a look at doing this.

[fitzy2005]

did you have to change your exhauts manifolds to suit the ecotec?

[savage1987]

What did your ecotec come from?? i.e. earlier or later? Cogez is looking into doing this conversion on his VP Calais, will the fact that it's a Calais pose any problems for him? I'm just full of questions today... oh and how much harder would it be to fit an L67 to that Calais?

Cheers
Sam

[Shifty1]

ecotec was VS-VY.. so any of these models it would've come from

[savage1987]

any info on the L67 into VP Calais?

[jet_pilot]

love the look of the ecotec manifold nice and flat

[savage1987]

can the Ecotec be hooked up to a level 3 dash cluster and still have the fuel readouts etc. correct??

Any info appreciated
Sam

[sackvp]

what is the point of puttin a newer v6 into a car. why i dont reli c the point

[needwork2-4fillhabbit]

Would this type of conversion work for a V6? Example 93 VP, donour car is VS V6? And im curious as to whether the LVL3 dash mod will still work also.

[greenfoam]

can the Ecotec be hooked up to a level 3 dash cluster and still have the fuel readouts etc. correct??

Any info appreciated
Sam

Yes if you run the VN ecu as Hozy did

[greenfoam]

Would this type of conversion work for a V6? Example 93 VP, donour car is VS V6? And im curious as to whether the LVL3 dash mod will still work also.

Yes and see above

[jet_pilot]

^ yep the ecotec is the v6 from vs to vy
good one foamy ya beat me to it lol

[greenfoam]

what is the point of puttin a newer v6 into a car. why i dont reli c the point

Because the early V6 makes 105rwkw with a good tune and the ectoec makes 120 with a good tune plus gains more with other mods. You need to spend alot of money to make 120 rwkw from the early V6, enough to buy several ecotecs

[greenfoam]

^ yep the ecotec is the v6 from vs to vy
good one foamy ya beat me to it lol

What are you doing here at the same time man, I'm going to bed: P, Pacemaker installage tomorrow :S fun times I expect, grrrrrrr

[jet_pilot]

nightfill night off body clock wraped around a power pole.....

[needwork2-4fillhabbit]

Im praying my motor isnt shagged, took it in yesty to get a new auto installed, and also to have a rattle checked... rattle as if a con rod was slapping the barrel...rattle ehehe. I got a V6 eco 130ks i can buy for 500 bucks though if its shagged. Rattle ended up being a mixture of 2 problems harmonic balancer and cam tensioner or something similar.

[VPCalais38]

I recently scored a VS Executive for $800 complete.

Car has done 130,000 K's and owned from brand new by a friends parents.
The car has been in a front end accident and wasnt insured so his olds just want a bit of cash out of it. Motor etc is fine (no accident damage).

My VP SII engine is shagged. It broke a pushrod over a year ago and now when I get her warm (over half) the engine misses like a b*st*rd due to a dodgy valve/guide.

I was going to fit the Ecotec, computer and box into my VP, but after some reading I dont know wether its worth it now.

I am guessing that ideally I would need to fit the VS dash and cluster into my VP to get everything working correctly?

I read somewhere that the ecotec's had a lean cruise mode in the computer which is partly why they get better fuel economy. I would like to have this feature if I do the conversion.

Any ideas on how to get it all going properly ?

Maybe get an Eeprom flasher and flash my standard VP Calais memcal with a VS one ?

Sorry I have probably missed something in previous posts/threads. Its late and I pick up the VS tomorrow so want to be armed with the necessary info before I waste my time.