Throttle Body Spacer Review
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
Originally Posted by meaj82
Anyone on here w/ the mrev2 and spacer going to try this out? I want to but am wondering if it will have a negative effect? Op do you have any info on this?
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
Originally Posted by meaj82
Thanks for your response. I might just pick this up.
Forgot to mention I have the rev-up model
Forgot to mention I have the rev-up model
My quick review is as follows:
Install is easy, if you can turn a wrench (or in this case, a hex key) However, one thing to keep in mind is that the bolts are NOT long enough to accomadate both this, and the AAM TB spacer (which is not designed to increase performance, but rather provides three vacuum ports for things like boost gauges, boost controllers, ECU's, etc...) So, I had to relocate some vacuum lines. This would not be an issue on a stock VQ, however.
Performance wise, I have not driven enough to notice a difference yet. There certainly is not a performance loss, and it does not give off any OBD codes (nor should it), but I haven't noticed a gain at this time. Butt dynos are certainly not very well calibrated, and if there was a 4-5 HP gain, I would be a liar if I said I noticed it, given 363 total rwhp. Additonally, anyone who can claim to notice a difference of less than 5% or so (which, on a 300 hp car like a G and/or Z is 15 hp) is pretty much a liar.
So, the gist of it is that I did not notice a difference, but I didn't really expect to be able to notice the 5-10 rwhp difference this spacer claims to make, and for the <$100 that this costs, I don't feel I went wrong by purchasing it.
Dave
Install is easy, if you can turn a wrench (or in this case, a hex key) However, one thing to keep in mind is that the bolts are NOT long enough to accomadate both this, and the AAM TB spacer (which is not designed to increase performance, but rather provides three vacuum ports for things like boost gauges, boost controllers, ECU's, etc...) So, I had to relocate some vacuum lines. This would not be an issue on a stock VQ, however.
Performance wise, I have not driven enough to notice a difference yet. There certainly is not a performance loss, and it does not give off any OBD codes (nor should it), but I haven't noticed a gain at this time. Butt dynos are certainly not very well calibrated, and if there was a 4-5 HP gain, I would be a liar if I said I noticed it, given 363 total rwhp. Additonally, anyone who can claim to notice a difference of less than 5% or so (which, on a 300 hp car like a G and/or Z is 15 hp) is pretty much a liar.
So, the gist of it is that I did not notice a difference, but I didn't really expect to be able to notice the 5-10 rwhp difference this spacer claims to make, and for the <$100 that this costs, I don't feel I went wrong by purchasing it.
Dave
Registered User
Joined: Oct 2006
Posts: 187
Likes: 0
From: Miami, FL
Ok well last night i put in my TB spacer not expecting much and i really can say that there was a difference my rpms jump a lot faster and i have a lot more low end i do recomend that ppl buy this for the price and the difference in power it is a very good bag for your buck.
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
Originally Posted by caelric
My quick review is as follows:
Install is easy, if you can turn a wrench (or in this case, a hex key) However, one thing to keep in mind is that the bolts are NOT long enough to accomadate both this, and the AAM TB spacer (which is not designed to increase performance, but rather provides three vacuum ports for things like boost gauges, boost controllers, ECU's, etc...) So, I had to relocate some vacuum lines. This would not be an issue on a stock VQ, however.
Performance wise, I have not driven enough to notice a difference yet. There certainly is not a performance loss, and it does not give off any OBD codes (nor should it), but I haven't noticed a gain at this time. Butt dynos are certainly not very well calibrated, and if there was a 4-5 HP gain, I would be a liar if I said I noticed it, given 363 total rwhp. Additonally, anyone who can claim to notice a difference of less than 5% or so (which, on a 300 hp car like a G and/or Z is 15 hp) is pretty much a liar.
So, the gist of it is that I did not notice a difference, but I didn't really expect to be able to notice the 5-10 rwhp difference this spacer claims to make, and for the <$100 that this costs, I don't feel I went wrong by purchasing it.
Dave
Install is easy, if you can turn a wrench (or in this case, a hex key) However, one thing to keep in mind is that the bolts are NOT long enough to accomadate both this, and the AAM TB spacer (which is not designed to increase performance, but rather provides three vacuum ports for things like boost gauges, boost controllers, ECU's, etc...) So, I had to relocate some vacuum lines. This would not be an issue on a stock VQ, however.
Performance wise, I have not driven enough to notice a difference yet. There certainly is not a performance loss, and it does not give off any OBD codes (nor should it), but I haven't noticed a gain at this time. Butt dynos are certainly not very well calibrated, and if there was a 4-5 HP gain, I would be a liar if I said I noticed it, given 363 total rwhp. Additonally, anyone who can claim to notice a difference of less than 5% or so (which, on a 300 hp car like a G and/or Z is 15 hp) is pretty much a liar.
So, the gist of it is that I did not notice a difference, but I didn't really expect to be able to notice the 5-10 rwhp difference this spacer claims to make, and for the <$100 that this costs, I don't feel I went wrong by purchasing it.
Dave
Also, there have been several dynos that show gains - so it's not all butt dyno reports. Sorry it didn't do for your Twin Turbo'd car what is has for the N/A Gs and Zs... but I do appreciate your review.
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
Originally Posted by D's06G
Ok well last night i put in my TB spacer not expecting much and i really can say that there was a difference my rpms jump a lot faster and i have a lot more low end i do recomend that ppl buy this for the price and the difference in power it is a very good bag for your buck.
Okay, so i've had a little driving time with this mod and I'm pleased with the outcome. To be honest, I wasn't expecting much at all. Seeing as even if I did gain (just throwing random numbers out) 5whp and 5tq, I don't see how my butt dyno would pick that up. haha However, the G is my daily driver, so I do tend to notice things when she's driving a bit different.
First off, I'm not desperately hoping to feel any gains, so I doubt the placebo thing is the case here. I'll be the first person to tell you that my G is PIG slow! I have an 04 6MT with your basic mods.... 5/16 MD spacer, K&N panel filter, z-tube, HKS hi-power exhaust, the usual. Sorry, but to me, unless you have forced induction, the G is just slow...but for some reason I still feel the urge to mod, haha...
but anyways, i installed the throttle body spacer, and I did notice that the rpm's climb faster. Especially in 2nd gear. Whether that translates into more hp/tq whatever, i'm not sure? Also, the intake note (induction noise) has definitely changed. It has a little more snarl too it. My boss has a G coupe as well, and he was driving next to me on our lunch break, and he commented on how my car sounds different and asked me if I did something different to my exhaust? That's when I told him about the tb spacer.
So in conclusion, a tiny bit more torque/throttle repsonse (nothing neck snapping), and a louder intake note. Not bad for the price of admission. Didn't hurt the car, so i'll leave it in.
First off, I'm not desperately hoping to feel any gains, so I doubt the placebo thing is the case here. I'll be the first person to tell you that my G is PIG slow! I have an 04 6MT with your basic mods.... 5/16 MD spacer, K&N panel filter, z-tube, HKS hi-power exhaust, the usual. Sorry, but to me, unless you have forced induction, the G is just slow...but for some reason I still feel the urge to mod, haha...
but anyways, i installed the throttle body spacer, and I did notice that the rpm's climb faster. Especially in 2nd gear. Whether that translates into more hp/tq whatever, i'm not sure? Also, the intake note (induction noise) has definitely changed. It has a little more snarl too it. My boss has a G coupe as well, and he was driving next to me on our lunch break, and he commented on how my car sounds different and asked me if I did something different to my exhaust? That's when I told him about the tb spacer.
So in conclusion, a tiny bit more torque/throttle repsonse (nothing neck snapping), and a louder intake note. Not bad for the price of admission. Didn't hurt the car, so i'll leave it in.
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
For those that have purchased this TBS (or intend to)… You might want to consider an ECU reset after install… Whether or not it is needed is not clear, some people had gains without resetting ECU (actual dyno and butt dyno) – others have seen better results after ECU reset.
If you followed the thread that started this whole thing, you know that my series of dynos were perplexing because there was as much as 10hp gain with an ECU reset, however it was not clear if it was the ECU playing tricks or this TBS giving gains (after driving with it on I concluded the TBS did in fact give the gains). Shawn Church (a very reputable tuner) was the first to dyno this mod – he gained 8-10 without resetting the ECU. Recently a few Zs and Gs installed at a dyno day and based on what is reported on the Z threads , resetting the ECU helped. Read reviews beginning on page 2 post #24:
http://www.my350z.com/forum/showthre...light=dyno+day
During our beta-testing 2 Zs dyno’s without resetting ECU, one saw decent gains, the other did not (A/F ratio was outa whack).
Whether it is required or not, it definitely isn’t going to hurt – so I suggest you do reset.
Here is another interesting thread with review of this TBS:
http://www.my350z.com/forum/showthre...259479&page=11 pg 11 post #217
If you followed the thread that started this whole thing, you know that my series of dynos were perplexing because there was as much as 10hp gain with an ECU reset, however it was not clear if it was the ECU playing tricks or this TBS giving gains (after driving with it on I concluded the TBS did in fact give the gains). Shawn Church (a very reputable tuner) was the first to dyno this mod – he gained 8-10 without resetting the ECU. Recently a few Zs and Gs installed at a dyno day and based on what is reported on the Z threads , resetting the ECU helped. Read reviews beginning on page 2 post #24:
http://www.my350z.com/forum/showthre...light=dyno+day
During our beta-testing 2 Zs dyno’s without resetting ECU, one saw decent gains, the other did not (A/F ratio was outa whack).
Whether it is required or not, it definitely isn’t going to hurt – so I suggest you do reset.
Here is another interesting thread with review of this TBS:
http://www.my350z.com/forum/showthre...259479&page=11 pg 11 post #217
Joined: Nov 2004
Posts: 17,181
Likes: 154
From: OC - So Cal
Originally Posted by D's06G
Can someone send me a link to see how to reset my ECU???
1) disconnect the negative battery cable
2) turn the ign key to the "ON" position
3) turn the headlight switch on
4) pump the brake pedal 6-10 times
5) turn the headlights off and remove the ign key
6) reconnect the negative battery cable
Last edited by OCG35; Oct 2, 2007 at 06:14 PM.
AGain no disrespect but I've read where an ecu reset has been said to provide only temp gains. ie.. reset ecu, dyno even with little or no mods will net 10 hp sometimes. I think Hydrazine mentioned it in one of this spacer discussions.
It's probably how Fujita can claim 10hp on it's intakes.
It's probably how Fujita can claim 10hp on it's intakes.
