twin tb economy

[JEZIMP]

hey guys
does any one know wat heppens or wat would happen to the economy if you put twin tb's with a manifold insulator to an ecotec with 2.2:1 rockers????

[nick3110]

put it simply, it'll be shit lol

[JEZIMP]

lol really!, ok thanks

[azkwazere]

put it simply, it'll be shit lol

care to provide some reasoning behind that?

aZk.

[Not_An_Abba_Fan]

It's not like a carby where the more air you throw in the more fuel it sucks in.

As long as you drive sensibly then it won't be much worse than you have now. But as with all cars, the harder you drive it, the more fuel it will use.

[nick3110]

As long as you drive sensibly then it won't be much worse than you have now. But as with all cars, the harder you drive it, the more fuel it will use.

lol.. if your gonna drive the car sensibly, why get twin tbs haha..

[Not_An_Abba_Fan]

If you're not going to drive a car sensibly why bother getting a license?

Nothing wrong with spirited driving, but it's not something that needs to be done 100% of the time.

[nick3110]

very true.. i wasn't meaning going round every corner sideways.. but he has 2:2:1, so obviously he's gonna floor it at the lights sometimes.. instead of driving like an old lady..

but yeh on that note how much would it cost to get twin tb installed anyway?

[Not_An_Abba_Fan]

I didn't think anybody made 2.2:1 rockers.....

[nick3110]

yeh it didn't sound right to me lol.. wasn't sure though :S

[acarmody]

MACE are making some really high ratio rockers now. Probably them.

[don0xer]

i see alot of v6's all wanting twin TB setups, did i miss something or does it give 100hp?

[Not_An_Abba_Fan]

Wank factor I think.....

[JEZIMP]

MACE are making some really high ratio rockers now. Probably them.

yeh mace makes them
there going into a manual so the ecomomy should b ok with a tune
im on the red p's so i cant get a v8 "legally" or turbo or anything, so im jsut stuffing around with an ecotec for some fun, wats wrong with that and putting twin tb's in, y not i recon

"but yeh on that note how much would it cost to get twin tb installed anyway?"

for the unit its 1300 off mace but they dont make them anymore, i got the last one i think, then ya gotta get custom piping to fit, then just install it your self

[Jesterarts]

2.2:1 Rockers! HOLLY CRAP! Where did you find those? And how do they work?

From what I understood, they were already pushing the envelope with 1.98:1.

2.2:1 is HUGE! The biggest MACE do is 1.98:1.

But yeah, twin TB on a ecotec, non-stroker or FI, waste of space and money.

[JEZIMP]

yeh 2.2:1, aparrently they do, i was talking to steve about the best way to go with my VT, and he suggested a package with shaved heads, new push rods, resistors and valve springs, along with 2.2:1 rockers, theres what steve from mace said and suggested :S
im gonna have this car for a few years hopefully, and coz being on red p's i can hardly do crap no v8, no FI nohting, so im gonna do wat i can to have fun in this vt while i have it, money isnt really an issue for me atm so im gonna give it a go anything for power is wat i say live life and have fun while ya can, for me and im guessing most ppl on JC thats behind a steering wheel (besides in the bedroom )

[MACE]

Yes the rockers are true, however they will only be supplied with our cylinder heads (with new springs porting etc) as they require cylinder head mods for them to work.

Hopefully we'll have some dyno results over the next few weeks

Cheers
Steve

[S.O.S]

Yes the rockers are true, however they will only be supplied with our cylinder heads (with new springs porting etc) as they require cylinder head mods for them to work.

Hopefully we'll have some dyno results over the next few weeks

Cheers
Steve

What's that package worth steve ?.


Also guys a twin t/b and rockers set-up on a stock ecotec would give it a plus 25% rwkw increase. What's not to like ?. Anyway around town from the lights nothing, even a v8, would struggle to come close to it off the lights, 'within legal limits of course'. And still maintain the V6 economy.

[JEZIMP]

What's that package worth steve ?.


Also guys a twin t/b and rockers set-up on a stock ecotec would give it a plus 25% rwkw increase. What's not to like ?. Anyway around town from the lights nothing, even a v8, would struggle to come close to it off the lights, 'within legal limits of course'. And still maintain the V6 economy.

thanks s.o.s, thats the sort of feed back i was after
from memory when i last called steve the package with the 2.2:1 rockers was also with the shaved heads, new push rods, resistors, valve springs ect, all up was $1850 or so.
all up for my ecotec i will be hooking up that package, with the twin throttle bodies, manifold spacer and cai..any other suggestions??, hopefully i should b pulling a "fair" () bit more torque and power at the wheels lol i agree...wats not to like!!!.....

[acarmody]

What's that package worth steve ?.


Also guys a twin t/b and rockers set-up on a stock ecotec would give it a plus 25% rwkw increase. What's not to like ?. Anyway around town from the lights nothing, even a v8, would struggle to come close to it off the lights, 'within legal limits of course'. And still maintain the V6 economy.

Don't think that 25% more power will beat a V8. The stock Ecotec has around 110rwkw with a bit of margin because every engine is different. So 25% extra is 137rwkw. A LS1 or LS2 has around 200rwkw with more torque, if all other factors (eg, tyres, driver, diff ratio, transmission, etc) were the same then the V8 will still cane you.

Don't get me wrong though. It will still be a lot more fun.

[S.O.S]

thanks s.o.s, thats the sort of feed back i was after
from memory when i last called steve the package with the 2.2:1 rockers was also with the shaved heads, new push rods, resistors, valve springs ect, all up was $1850 or so.
all up for my ecotec i will be hooking up that package, with the twin throttle bodies, manifold spacer and cai..any other suggestions??, hopefully i should b pulling a "fair" () bit more torque and power at the wheels lol i agree...wats not to like!!!.....

Your welcome. Maybe a nice exhaust headers system to complete it, speed up the shifts maybe with a shift kit. You could lower the diff ratio, however if your looking for some speed but trying to keep about average fuel maybe it's not the way to go ?.

$1800 or so isn't to bad. I was going to pay $1400 for ported heads, i'd much rather pay for what you have done.

Don't think that 25% more power will beat a V8. The stock Ecotec has around 110rwkw with a bit of margin because every engine is different. So 25% extra is 137rwkw. A LS1 or LS2 has around 200rwkw with more torque, if all other factors (eg, tyres, driver, diff ratio, transmission, etc) were the same then the V8 will still cane you.

Don't get me wrong though. It will still be a lot more fun.

On a drag strip yes it will cane it. But in legal limits of everyday speeds nope. Go on what we know from past, the v6's boot it off the line as fast as anything going around. Then they start to hit the wall of limitations, but for that first 3-4 seconds they are right on the money. I have timed a buick v6 stock run to 60 and stopped the time @ 4.2 seconds. Then a LS1 stock 60 @ 4.5. Now change that to a rolling 20-30 and no contest. But with jezimps work his car will be some awesome fun around town for him, and most likely will cane anything at the lights around legal speeds, and he will give it to them I6's. It wont beat a v8 on rolling speed freeway overtaking or drag strips, but it will take them off the mark pretty good and give them one hell of a fright, and not have traction issues as they might.
He will have some fun, and if he had a 5 speed even more.

[MACE]

What's that package worth steve ?.


Also guys a twin t/b and rockers set-up on a stock ecotec would give it a plus 25% rwkw increase. What's not to like ?. Anyway around town from the lights nothing, even a v8, would struggle to come close to it off the lights, 'within legal limits of course'. And still maintain the V6 economy.

Price will be around the $1850 mark when on the market, as JEZIMP has mentioned. The good thing about this mod is that it won't require the memcal to be modified, unless the compression has been raised, from preliminary testing

thanks s.o.s, thats the sort of feed back i was after
from memory when i last called steve the package with the 2.2:1 rockers was also with the shaved heads, new push rods, resistors, valve springs ect, all up was $1850 or so.
all up for my ecotec i will be hooking up that package, with the twin throttle bodies, manifold spacer and cai..any other suggestions??, hopefully i should b pulling a "fair" () bit more torque and power at the wheels lol i agree...wats not to like!!!.....

Ported inlet manifold runners perhaps

Your welcome. Maybe a nice exhaust headers system to complete it, speed up the shifts maybe with a shift kit. You could lower the diff ratio, however if your looking for some speed but trying to keep about average fuel maybe it's not the way to go ?.

$1800 or so isn't to bad. I was going to pay $1400 for ported heads, i'd much rather pay for what you have done.

On a drag strip yes it will cane it. But in legal limits of everyday speeds nope. Go on what we know from past, the v6's boot it off the line as fast as anything going around. Then they start to hit the wall of limitations, but for that first 3-4 seconds they are right on the money. I have timed a buick v6 stock run to 60 and stopped the time @ 4.2 seconds. Then a LS1 stock 60 @ 4.5. Now change that to a rolling 20-30 and no contest. But with jezimps work his car will be some awesome fun around town for him, and most likely will cane anything at the lights around legal speeds, and he will give it to them I6's. It wont beat a v8 on rolling speed freeway overtaking or drag strips, but it will take them off the mark pretty good and give them one hell of a fright, and not have traction issues as they might.
He will have some fun, and if he had a 5 speed even more.

The setup will definately be a nice streeter as these mods focus on overall engine efficiency, as opposed to just a narrow power band from installing just a large cam which would be slower under real work conditions then this setup

[acarmody]

On a drag strip yes it will cane it. But in legal limits of everyday speeds nope. Go on what we know from past, the v6's boot it off the line as fast as anything going around. Then they start to hit the wall of limitations, but for that first 3-4 seconds they are right on the money. I have timed a buick v6 stock run to 60 and stopped the time @ 4.2 seconds. Then a LS1 stock 60 @ 4.5. Now change that to a rolling 20-30 and no contest. But with jezimps work his car will be some awesome fun around town for him, and most likely will cane anything at the lights around legal speeds, and he will give it to them I6's. It wont beat a v8 on rolling speed freeway overtaking or drag strips, but it will take them off the mark pretty good and give them one hell of a fright, and not have traction issues as they might.
He will have some fun, and if he had a 5 speed even more.

Like I said it really depends on outside factors. 99% of the time it usually comes down to the tyres. Both the V6 and the V8 have enough power to easily spin the tyres, so in reality whichever driver has the most power laid down without lighting up the rear should win, up to roughly 60km/h.

[S.O.S]

Price will be around the $1850 mark when on the market, as JEZIMP has mentioned. The good thing about this mod is that it won't require the memcal to be modified, unless the compression has been raised, from preliminary testing

I don't want to sound stupid, but i will. What is involved with shaved heads ?, i have heard of this term before but never understood it fully.

Also will you be doing some information on this package when ready in your thread section ?.

The setup will definately be a nice streeter as these mods focus on overall engine efficiency, as opposed to just a narrow power band from installing just a large cam which would be slower under real work conditions then this setup

That is what i like about this over the cam option. Real driving is the day to day stuff, and if you want a cam you will get best use out of it flooring it through the gears, like a drag strip. But normal day 2 day is different, and many hate the day drive of cam cars, especially V6's.

Like I said it really depends on outside factors. 99% of the time it usually comes down to the tyres. Both the V6 and the V8 have enough power to easily spin the tyres, so in reality whichever driver has the most power laid down without lighting up the rear should win, up to roughly 60km/h.

Admittingly i have a V6, and have had some axle tramp from it fully stock. So hard take off's are about 4/5 good. Look i wouldn't race a V8 to 100 unless it have me 30 meters head start.

[greenfoam]

I have timed a buick v6 stock run to 60 and stopped the time @ 4.2 seconds. Then a LS1 stock 60 @ 4.5. Now change that to a rolling 20-30 and no contest. But with jezimps work his car will be some awesome fun around town for him, and most likely will cane anything at the lights around legal speeds, and he will give it to them I6's. It wont beat a v8 on rolling speed freeway overtaking or drag strips, but it will take them off the mark pretty good and give them one hell of a fright, and not have traction issues as they might.
He will have some fun, and if he had a 5 speed even more.

My stock 5 litre goes 0-60 kmh in 3.0 seconds all day everyday, I don' t think many stock LS1s would be as slow as 4.5, maybe 3.5-3.7 ish seems more like the truth to me. VN V6's can make it in 4 flat ish