C.O.M.E racing manifold plenum for ecotec

[djeyecon]

Has anyone else read up on these? I've been considering saving for one but before I spend nearly 2 grand I'd like to hear other peoples opinions.
Already restricted to V6 or lower and non-supercharged/turbocharged engines I wanna know if it's worth the upgrade as I can't do much else that will significantly increase the power of my car.

This is the article direct from the C.O.M.E website:

"This plenum is a direct replacement for the original top plenum incorporating provision for all factory sensors, throttle cable, fuel rails, intake piping. It is a very quick and easy bolt on to the original factory manifold base. Fitting time is less than one hour and the results are incredible even on stock or mildly modified 3.8 litre engines. Our intake plenum features a billet alloy dual 58mm throttle body, increased plenum volume with a beautifully designed zero restriction inlet flange mating precisely to the plenum housing itself. Also included is a very efficient intake snorkel which bolts directly to the billet throttle body and is designed for maximum air flow potential and to hook up to stock intake piping to the production or any aftermarket air box systems.

This complete plenum assembly with billet throttle body, intake snorkel, accelerator cable bracket is $1750.00 making it a fantastic value for money easy bolt on. The results even with stock engines is over 10% torque gains right through the rpm range with more significant gains on modified engines, strokers and boost applications. Unlimited possibilities abound and finally the Ecotec engine is allowed to make power to its full potential."

Cheers
KP

[VSSECO]

2 grand is a lot to spend on a 10% torque increase. A CAI will do that for a tenth of the price.

If your restricted to a n/a V6 (is this a P-plate law thing?????) then authorities will probably frown apon the aftermarket manifold anyway! You want stock-looking mods like trottlebody, exhaust, tune and the rest of it....

This manifold should be put on last after you already have a hot v6 and are desperately trying to squeeze every last kw from the engine with a limitless budget

[Raptorsc]

There is never much quoted in terms of power gains ...............

A set of rockers will do way better for HEAPS less money

[djeyecon]

The guy from MACE pm'd me and showed me his gear with much higher torque increases with the larger plenum and throttle body's. Still yeh, I would most likely get rockers first.

[feistl]

Id go cam and roller rockers, retune to premium and exhaust. that should give the car more power
You could always stroke it to 4.2L, cops wouldnt be able to see it, and should help with the power.
Then when you get off your Ps, supercharge/turbo it, and have a FI 4.2L

[johnvtls1]

yeh but stroking costs around the ten grand mark. not a lot of p platers have that lying around. probably start with somthing simpler. and plan wat you want from your car. if u want cheaps go exhaust, rockers, diff and tune. will cost maybe 4-5 grand. car wont be a rocket but if will be a decent 6. you could aslo go the cam route but that will cost u a fair bit more

[shwarno]

i'd go and grab a die grinder and grind the F*** out of ur maf sensor and if its a vs get a VT air box.. much bigger.. with cold air intake.. grind that out too!! make that heaps bigger.. then throttle body grind him out bigger to. polish ur plenum right up. then go 1.98 roller rockers and then grab a 2.25 twin into single 3 inch hi flow exhuast and finaly a power chip.. i spent near 5 grand on rebuilding/modifieing my v6 ecotec.. i got cam and roller rockers and ported POLISHED everythin!! and the power is'nt that impressive i'll struggle and spend a bit more to maybe hit 200rwkw n/a.. grab SPLIT FIRE plugs.. dyno proven that split fire plugs and leads and a half ported maf give 14rwkw on the bottom and top end with smoother power delivery just make it BREATHE... got any questions i'll start a page and u can ask some questions there.. cheers! hope u found somthing interesting

[immortality]

i think COME have over stated things alittle. get the Street Machine issue from aobut 2 months ago, it had a article in there about the ecotec twin TB manifolds. it actually produced less torque then a ported standard manifold in the middle of the RPM band. not worth the money unless it's going on a BIG $$$ engine. certainly not worth it standard one. i'd go with the MACE product (oh i am) see Ecotec development

[Raptorsc]

As immortality said ^^^^^ go with the product that is showing the gains otherwise keep $$ in pocket. Steve at MACE is making an effort to get back to back dyno results on his products and that is commendable.


And for Shwarno

i'd go and grab a die grinder and grind the F*** out of ur maf sensor and if its a vs get a VT air box.. much bigger.. with cold air intake.. grind that out too!! make that heaps bigger.. then throttle body grind him out bigger to. polish ur plenum right up. then go 1.98 roller rockers and then grab a 2.25 twin into single 3 inch hi flow exhuast and finaly a power chip.. i spent near 5 grand on rebuilding/modifieing my v6 ecotec.. i got cam and roller rockers and ported POLISHED everythin!! and the power is'nt that impressive i'll struggle and spend a bit more to maybe hit 200rwkw n/a.. grab SPLIT FIRE plugs.. dyno proven that split fire plugs and leads and a half ported maf give 14rwkw on the bottom and top end with smoother power delivery just make it BREATHE... got any questions i'll start a page and u can ask some questions there.. cheers! hope u found somthing interesting

To all out there, don't do the things listed in the first lines of bold unless you are prepared for drama's lol.

On the second line of bold .......... that's only possible for people with LOTS of money, just forget 200rwkw NA, think about 145rwkw as a target and see how you go with that

[MACE]

Bang for buck I would go rockers as others have pointed out. Then a cat back exhaust system. Going a twin throttle manifold is definitely not one of the first mods to go for as it can be an expensive exercise to do properly (which very few people do I might ad, that is fit them properly with the supporting infrastructure). From there on end other intake mods that can be undertaken is a cold air intake, manifold insulator, plenum spacer, larger throttle body etc. At the end of the day it's depends on what your requirements and budget are

[Raptorsc]

Is this the REAL MACE posting above ^^ ........... hope so

[MACE]

Maybe

Well someone has to be I guess

Cheers
Steve

[johnvtls1]

haha yeh 200 rwkws. i was talking to an engine builder today. and he got 180rwkws on his v6. but that was a $15000 engine lol

[sircruisealotVS]

i'd go and grab a die grinder and grind the F*** out of ur maf sensor and if its a vs get a VT air box.. much bigger.. with cold air intake.. grind that out too!! make that heaps bigger.. then throttle body grind him out bigger to. polish ur plenum right up. then go 1.98 roller rockers and then grab a 2.25 twin into single 3 inch hi flow exhuast and finaly a power chip.. i spent near 5 grand on rebuilding/modifieing my v6 ecotec.. i got cam and roller rockers and ported POLISHED everythin!! and the power is'nt that impressive i'll struggle and spend a bit more to maybe hit 200rwkw n/a.. grab SPLIT FIRE plugs.. dyno proven that split fire plugs and leads and a half ported maf give 14rwkw on the bottom and top end with smoother power delivery just make it BREATHE... got any questions i'll start a page and u can ask some questions there.. cheers! hope u found somthing interesting

thats some funny **** man!
porting the maf = a lean running engine = bang!!!
VT airbox cant fit in a VS so its a waste of time.
hitting 200rwkw with a n/a ecotec = impossible.
14rwkw gain from new plugs, leads and a half ported (what does that even mean..) maf is just rediculous...do you even realise how stupid that sounds.

[MaN|aC]

lol 200rwkw from a n/a ecotec

I cant even make that from a stroked and blown ecotec, maybe tomorrow from my mafless tune i'll be over the 200 mark

[johnvtls1]

lol 200rwkw from a n/a ecotec

I cant even make that from a stroked and blown ecotec, maybe tomorrow from my mafless tune i'll be over the 200 mark

oh man hearing that is so disheartening. ****ing **** ecotecs lol lets all just buy ls1/ls2s haha

[sircruisealotVS]

lol 200rwkw from a n/a ecotec

I cant even make that from a stroked and blown ecotec, maybe tomorrow from my mafless tune i'll be over the 200 mark

im positive you will Al, you should smash my figure out of the water running the boost you are with a mafless tune on a pretty similar engine.

[MaN|aC]

Im 3.7rwkw from making the 200 mark atm, ive still got bigger plans for it yet like intercooled with water/meth injection

After that I'll be lost because ive done everything to it possible

[johnvtls1]

i reckon thats a pretty awesome figure man. especially for a 6. have u run the ting down the strip yet? wats sort of times would u be expecting? low to mid 13's?

[MaN|aC]

I have rarely driven it yet, its spends more time with my mechanic/tuners as it does in my garage
Just wait till the QC drag day for some results from sircruisealot and myself

[johnvtls1]

haha that kinda sucks man.
when is that happening? i cant wait for some results from u two blokes.

[sircruisealotVS]

haha that kinda sucks man.
when is that happening? i cant wait for some results from u two blokes.

12th of July its on - im hoping to get out to willowbank before then though, as soon as those temps drop as winter sets in it'll be awesome for times

[djeyecon]

I already have a 2.5" exhaust system and this weekend (if my mate is finally free) i will be getting advance headers fitted, that's about it.
Steve from MACE has already showed me his gear which boast very high results.
I am very interested in what MACE has to offer and so far have been looking at getting a set of 1:98:1 rockers, manifold insulator, plenum spacer and larger throttle body from them.

[johnvtls1]

yeh i talked to steve today about some rockers. gave me like 15 minutes of his time and didnt mind all my stupid questions. verry good guy. highly recomended

[shwarno]

a vt air box will fit if ur not a sheep... CUSTOMISE!.. and the maf sensor does make a big difference.. i have dyno results to prove it and so do 4 other people in mildura.. (north west victoria) i do have a chip tho.. the chip does not include the porting of the maf and it was running a bit lean.. registering 14 on the afr's before i replaced the fuel pump that was shagged.. i'm currently running 147rwkw.. thats with injectors that have never been cleaned... and that was with the old fuel pump that WAS cutting out.. mace engeneering sell a FULLY ported maf sensor so why BE SO CRITICLE OF PEOPLE. 200rwkw might be steep but u have to aim high to acheive anythin.. split fire plugs and leads made a different bigger then night and day.. dont beleive me.. DONT TRY THEM.. wont make a difference to ur basic commodore.. but for ur high compression motors it does.. cheers.. and yeah.. step up with ur n/a v6's and show me one pulling more.. hey? if u dont have one.. then maybe ur doin somthing wrong cheeers bye