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 Supercharging Ecotec Engine? - supercharging holden vy ecotec engine?  

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st3v3o
  • st3v3o
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  • Joined: 2-June 07
  • Posts: 155
Post #1 post 28th February 2008 - 06:14 PM
hey guys i brought a stock top mount ecotec supercharger off a mate of mine and woundering what work will need to be done to fit this , or a mechanic around the brisbane area that could fit it ? any advise
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pipster11
Post #2

u just need all teh extra stuff that the stock supercharged motors run

and possibly a supercharged ecu?

cobber
Post #3

theres a fair bit of work to be done as the factory supercharged engines had different internals as far as i know (stronger and what not) i have no idea if there would have to be oil lines run etc. my brother had one of these engines in his vt, they beat 5 litres with little mod

headsense
Post #4

I've not done this engine myself , i personally think its a waste of time but would suggest .

Have you got all the components ie supercharger , manifold , inlet tract , idler pulley , memcal , BOV etc to go with it ? If no best shot you dig up the rest of the parts .

Fitting to a N/A engine will require a proper tune to ensure fuel and ignition curves are spot on .

My recollection was the factory engine has a different piston pin height and ulitmately lower compression ratio so fuel quality and tune will have to be spot on and boost controlled , i just cant remember but assume the injectors specified for the blown engine were also different .

Aside from components all the same principals apply as using an aftermarket kit like STA , Vortech , Powerdyne or Yella Terra

TwinCam16
Post #5

Bov? ummm dude, there is no intake pipes to put one on, its a manifold mounter blower.

No oil lines are required as these units are internaly lubed.

You need the inlet manifold, throttle body, belt tensioner, injectors, afm and computer.

Detonation will easily be controled by the ecu, if it pings, it will pull back the timing quick smart. Be sure to use 98 octane ONLY tho for safe measure.

That setup will have you dust a standard ecoleb 160kw motor.

VXP51
Post #6

you will barely manage 160 kw at the motor.

The ecotecs are a second rate motor compared to the L67, which is the standard buick supercharged v6.
The M90 generation blower that is used on commodores is a poor unit in comparsion to what is around nowdays, its thermal efficiency is terrible, hence the inlet temps at around 120-150c running at 10psi not cooled.

I would sell the M90 and use that money to either purchase a raptor charger kit, or a yella terra modified M90 setup.

wasfishing
Post #7

i dont actually know much about the motor but my mate has one auto and is slow as, it onli runs 5psi of boost so i cant see y they would come out standard with better internals than a n/a, bov pfff.... dont think they run abv, chargers boost is controled by the pulley so dont bother with a boost controller, mayeb get the manifolds and what not and by a better charger as i havnt heard much good about them. But i know of one standard supercharged auto for $14000.

headsense
Post #8

The engine i looked at which was one of the first in Qld way back when had a Bosch relief valve mounted on the inlet tract , how it was plumbed , i dont recall , prvision of pressure balancing across throttle body i suspect under open / closed transition

The ECU will retard the timing as long you have means to measure it knocking ie knock sensor , do you have one .

Seems like a waste of time to boost the engine and then have it retarding the timing due to pinging from high static compression ratio and high inlet tract temps half the time as well as no option but 98 ron fuel

Do the job properly , decompress the engine and tune it properly and have some fun

TwinCam16
Post #9

Decompresing the motor is such a thing of the past.

In this day and age of decent knock sensing and quality fuel, its compleatly a waste of time.
st3v3o
Post #10

cheers for the advise guys i think ill take the advise and sell it for the amount of fitting it and parts i could basically buy a new car

rathy1406
Post #11

The blown v6 engines L67 do have different internals than the standard buick engine, the pistons are different, the heads are different so my advice is track down the extra parts and do it properly. It has been done without these parts before but not very successfully.

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