Go Back > Technical Forums > Tech Garage > All Motor

All Motor Discuss all motor (NA) performance

Thread Tools Display Modes
Old 11-03-2012, 12:17 AM   #1
randizle's Avatar
Join Date: Jul 2007
Location: in my car
Posts: 1,864
iTrader: (4)
throttle body upgrade for d15b7 ....would b16 tb work?

I have searched and can only find skunk2 and blox, but i was wondering what oem tb will work?
wont i because.....enemies my on mercy have god may.
randizle is offline   Reply With Quote
Old 01-27-2013, 10:55 PM   #2
Join Date: Mar 2011
Location: glendale
Posts: 106
iTrader: (1)
you wont really gain much unless youre boosted. maybe better throttle response but not much of a power increase
took your ac out i feel bad for you son. ive got 99 problems swamp ass aint one.
mudhoney is offline   Reply With Quote
Old 01-28-2013, 08:00 AM   #3
Join Date: Mar 2007
Location: Lehigh Acres, FL
Posts: 183
iTrader: (0)
I agree^
J240sx is offline   Reply With Quote
Old 01-29-2013, 10:53 PM   #4
Ricer84's Avatar
Join Date: May 2011
Location: east valley
Posts: 223
iTrader: (1)
I have a B18 TB on a d16y8 motor now and I like very much. I've had 3 different aftermarket TB's and they all sucked., for a few different reasons. I think its a 64mm. witch is bigger than that motor wants at lower rpm's.
Ricer84 is offline   Reply With Quote
Old 02-24-2013, 06:26 AM   #5
Join Date: Feb 2012
Location: phoenix az
Posts: 896
iTrader: (2)
bigger throttle bodies don't actually increase response. It's a trick. See, say the stock is 50mm, and you slap on a 70mm throttle body. What happens, is for the same amount of throttle input, the bigger throttle body opens larger than the same at 50mm. HOWEVER, if the car makes Xhp at WOT on a 50mm throttle body, it may actually make the same hp at say, 75%throttle with the 70mm throttle body, and NO more power than that, at 100%.

What is perceived as engine response is a trick. Honestly, on a stock engine, the stock TB is big enough.

in fact, big throttle bodies when not needed hurt your ability to modulate the throttle.

There's been lots of discussion on this on hybridz (old z car forums, they swap in everything from s2000 engines, to viper v10's, and everything in between into the old S30z chassis)
that's the thread if anyone cares to look.

One member mentioned that a 60mm throttle body on his Z, his datalogs were reading atmospheric pressure (zero vacuum) at 60% throttle. That means the last 40% was doing NOTHING. that's on a 2.8l straight 6.

I'll bet on my car, an upgraded throttle body will give me zero hp when I boost it.
1990db1 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Š 2004-2013
Design by HTWoRKS