Has anyone bought this combo kit,or is it a waste of money.I was reading over the information they give about it and they said that the opening at the throttle body starts at 69mm,tapers to 60mm butterfly then go's to 62mm to meet the manifold opening.They also say that this improves low -mid rpm power.Now to me i don't think you would be gaining anything.I'm not going to spend $400 for something that's not going to improve performance.So please let me know what you people think.
it depends on what your ultimate plans are for your car and what mods you have already done. unless you are planning to super/turbocharge your car, i wouldn't put anything bigger than say...56mm. you will just lose your low end and become a gutless wonder. with the right size TB paired with an intake and some exhaust mods, there is some decent power to be had (if you're staying n/a)
the factory ecotec TB is 56mm.
I am running a 68 (i believe)-62-62 TB right now made for me by a JBO member. I noticed an immediate increase in power....of course I am boosted.
Basically my point of posting was to tell you both the factory TB is a 56mm TB
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
some did a dyno test a while back.... 62 MM TB with an intake gained like 10-11 whp
and I believe everything else was stock or near stock
Stay factory...unless you're boosted or highly modified, you don't need a 62 MM throttle body. You'll lose low end power because of lack of velocity.
www.kronosperformance.com / 732-742-8837
i might just get this for those gains its worth the price
I have a ported throttle body, stock butterfly and I honestly have to say I have noticed more difference since i put it back in my car last month than I noticed from the intake and catback together. Granted when I put it in I had full exhaust and intake, but for the first time since putting in the TB I actually feel a little bit of pull back into the seat. Once it warms up a little I will head to the dyno and find some results as I have a baseline already w/ just intake and full exhaust. No clue what the gains could be, but I doubt its just me as the difference was quite noticeable, seemed to be more so than any of my other mods.
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15.71 @ 87.9mph 9-17-05
Darkstars, I'd love to find out where you got that info because it would silence a lot of people who say that there's no reason to go with a bigger throttle body... I've always heard that the 62mm TB's give gains too... not losses. Now when you say, "you don't need a 62mm throttle body... you'll lose low end power", NJHK, are you saying that you'll lose some low end grunt but gain top end HP? If so, the Ecotec can afford to lose some of it's 155 lb. ft. if it gains up to 10 whp on the top end... I wouldn't mind swapping 10-15 lb. ft. of low end for 10-15 hp of top end.
All I know is untell there is proof, for or against the TB then I am going to wait.......I have beat cars like the Celica GTS and Corolla xrs (same engine) although they start with an extra 20hp and higher rpm........now with my mods I am lucky if i have 160hp but my stock 150ft lb. is what allows to beat the weak 127ft lb of the toyota........I dont know about the rest of you but I would rather save up and get some top end power other ways and not sacrifice my torque.......
Remember the old saying, "horse power is for show, Torque wins races"
I have one true love in my life...And my girlfriend sits next to me in it
Tim wrote:NJHK, are you saying that you'll lose some low end grunt but gain top end HP?
Yes but that also depends on your other modifications but more than likely if you're in the "bolt ons" arena and minor motor modifications stage (like myself), you'll probably gain in higher RPMs and lose lower end power. I've experienced this myself. Granted...feels good on the highway, a nice pull but it'll hurt probably if you're more of a track person or a dead stop and accelerate kind of person.
www.kronosperformance.com / 732-742-8837
NJHK (The JBO Negro) wrote:Granted...feels good on the highway, a nice pull but it'll hurt probably if you're more of a track person or a dead stop and accelerate kind of person.
Here's something I've never understood... why is it when people speak of "top end power", they always refer to it as feeling it on the highway? If I accelerate balls-to-the-wall to 70 mph, I'm going to redline 1st, 2nd and go well into 3rd gear. Wouldn't I gain top end on those gears as well as 4th and 5th gear? For instance, people are telling me to go with the 4-1 header if I like top speed and highway passing power, but to go with 4-2-1 header if I'm a stoplight accelerator... I consider myself a mix, but why wouldn't I benefit from the top end gains on the low gears as well as the high gears...
I've just always seen it that when you're going balls-out, you're staying above 5000-ish most of the time anyway, so why wouldn't someone want their powerband shifted to the top end? I dont' race my car in the mid-range, I race it in the top end...
Can anyone explain this? Thanx.
Tim wrote:NJHK (The JBO Negro) wrote:Granted...feels good on the highway, a nice pull but it'll hurt probably if you're more of a track person or a dead stop and accelerate kind of person.
Here's something I've never understood... why is it when people speak of "top end power", they always refer to it as feeling it on the highway? If I accelerate balls-to-the-wall to 70 mph, I'm going to redline 1st, 2nd and go well into 3rd gear. Wouldn't I gain top end on those gears as well as 4th and 5th gear? For instance, people are telling me to go with the 4-1 header if I like top speed and highway passing power, but to go with 4-2-1 header if I'm a stoplight accelerator... I consider myself a mix, but why wouldn't I benefit from the top end gains on the low gears as well as the high gears...
I've just always seen it that when you're going balls-out, you're staying above 5000-ish most of the time anyway, so why wouldn't someone want their powerband shifted to the top end? I dont' race my car in the mid-range, I race it in the top end...
Can anyone explain this? Thanx.
When we refer to top end power, we are usually talking about higher RPMs. When I said stuff about the highway, like you said, you're in lower RPMs but gearing is also different in higher gears. If you're cruising and decide to stay in 4th gear in lower RPMs and you don't downshift cause you want to gradually climb your RPMs, you'll see the difference in the pull.
The reason you would lose power though from the throttle body is because of the lack of velocity in lower RPMs.
The whole point of things is try not to have such a one point geared powerband (example: lousy low end, great top end or vice versa), you want to have a nice strong powerband all the way through to about 6000 RPMs or so. Our cars tend to stop making power around 5800-6200 RPMs depending on modifications so you want to take advantage of the narrow RPM band you have.
www.kronosperformance.com / 732-742-8837
so would this be worth the price for u
I know the post Darkstars refers to. It is from just about a year ago. Something like a 11HP gain with 5+ throughout. Did show a drop in the lower RPM Tq though. Definately worth getting IMO
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Team Vision Racing (aka hypsy) wrote:I know the post Darkstars refers to. It is from just about a year ago. Something like a 11HP gain with 5+ throughout. Did show a drop in the lower RPM Tq though. Definately worth getting IMO
I remember the post and know that it did improve by about 10whp with a TB. The guy already had a intake and after adding the TB to it, he got 10 more hp. I have that TB but not that intake. I think It helped me and it makes a little whistle noise. For the price, I think its a great improvement and more so if you plan on bigger things down the road.
2012 HD VRSCF
2010 Ford Explorer
2006 Ford Ranger
2004 Chevy Cavalier
well i think ill probably get this were can i get this and should i expect the same gains from and automatic
I dynoed my car last november an 05 spd with a rksport intake and muffler and RSM 62mm t/b and i pulled 137hp and 143 ft lbs. another member on here said that a stock eco 5spd pulled 121 and 126 thats about a hike of 16 on both read outs. The loss might be a little more since its an auto but still WELL WORTH it.
Dave
A new breed of J will be unleashed in 06
Creating the E-RACER one mod at a time
Member of J-Factor
Member of Wisc's J's
1/4 mile 16.084 @ 84.90 (Stock Z) 01 SPDY Z24
DAVE!!! the radio man posts!
hey FYI buddy...the pulley you gave me should be on shortly. thanks again.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
ptv177 wrote:well i think ill probably get this were can i get this and should i expect the same gains from and automatic
You can get the TB we are talking about on ebay from Riva22 aka ruben, Just type in ecotec throttle body and it should come up. Better yet, here it is
Ecotec tb
2012 HD VRSCF
2010 Ford Explorer
2006 Ford Ranger
2004 Chevy Cavalier
great ill be getting this vey soon
