A1 throttle body upgrade? - D-series.org

cahitapower · 12-03-2008, 11:52 PM

hey...i got a D16A1 and i cant seem to find any bigger throttle body..any help?

remoer · 12-04-2008, 02:28 AM

throttle response.

the B18a is the best to get for the reason is it's ODB0 and its 58mm while the ZC is 55mm. but make sure you post match you intake manni to the tb.

jlicrx · 12-04-2008, 05:56 AM

B-series and later D-series throttle bodies have a different bolt pattern than the D16A1, D16A6 and ZC throttle bodies and don't bolt onto the manifold - the best bet is to have Maxbore bore out the throttle body

http://www.maxbore.com/

ddd4114 · 12-04-2008, 12:28 PM

Why do you want a larger throttle body?

remoer · 12-04-2008, 12:29 PM

a zc tb is 55mm but the B18a is 58mm and ODB0.

cahitapower · 12-04-2008, 10:01 PM

b18 have a different bolt pattern...

cahitapower · 12-08-2008, 11:53 PM

i real dont even know how much MM is my stock 89' d16a1 throttle body..any one?..

p.s the maxbore.com looks realy good 80% chance im going that way..thanks jlicrx

Aquafina · 12-09-2008, 08:43 PM

Go maxbore if using A6 IM.

I'm using a GSR TB on a customers A6 using jli's manifold adaptor an Performer-X IM.

cahitapower · 12-12-2008, 11:35 PM

ok now heres a question..what would do better..buy the ZCspeed plate and use a Skunk2 mani with a b-series T-b or bore out my A6 mani and go with maxbore and bore my t.b aswell...which would be better?

jlicrx · 12-13-2008, 09:01 AM

if you have a stock engine, the Skunk2 manifold is going to slow it down - your best bet is to either: find an OBD0 DOHC ZC intake manifold, have Maxbore bore out the throttle body and port match the intake to the throttle body or find an OBD1 DOHC ZC intake manifold which will accept the larger B-series throttle bodies - without any internal mods, like camshafts, higher compression, etc., the larger throttle body will give you a little more power at high rpm but at lower rpm it will tend to bog and stutter - the larger the throttle body, the more bogging and stuttering - the Skunk2 manifold has too large of plenum and runners for the NA, basically stock, engine

esdafoo · 12-13-2008, 09:06 AM

You can solder an aluminium plate on your current manifold, port it to Xmm to match the TB you want to use.

I got an H22 62mm TB on my A6 modified manifold : esdafoo's ED Y7-T project

cahitapower · 12-14-2008, 11:25 AM

wanna sell it?...

esdafoo · 12-16-2008, 07:28 AM

Absolutely not! :P

asianflava · 12-17-2008, 08:27 AM

I had the throttle body on my ZC bored out. I don't remember the name of the place, but I had to send it to GA to get the work done. Did a great job, made a new throttle plate, they shaved the shaft and screws too. Don't remember how much it cost, but I don't think it was too much (or I wouldn't have had it done).

cahitapower · 12-19-2008, 10:03 PM

aww mann....would had love to use it on my build..

p.s i emailed maxbore a few times and no answer..

...

12-03-2008, 11:52 PM	#1 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	A1 throttle body upgrade? hey...i got a D16A1 and i cant seem to find any bigger throttle body..any help?

12-04-2008, 02:28 AM	#2 (permalink)
remoer The Great Weldini iTrader: (53) Join Date: Jun 2005 Location: fountain inn, sc. Posts: 8,785 Rep Power: 20 View My Photo Gallery	throttle response. the B18a is the best to get for the reason is it's ODB0 and its 58mm while the ZC is 55mm. but make sure you post match you intake manni to the tb. __________________ 1 monkey power = 0.332 hp. The suspension should always be faster than the engine - BMW The term stage was created to make mentally slow ppl feel physically fast. my DOHC ZC - 133.73whp and 108.48wtq (tuned on a Dynojet)

12-04-2008, 05:56 AM	#3 (permalink)
jlicrx D-series soldier iTrader: (0) Join Date: Jan 2007 Location: Colorado Springs, CO Posts: 923 Rep Power: 7	B-series and later D-series throttle bodies have a different bolt pattern than the D16A1, D16A6 and ZC throttle bodies and don't bolt onto the manifold - the best bet is to have Maxbore bore out the throttle body http://www.maxbore.com/ __________________ ZCspeed Racing

12-04-2008, 12:28 PM	#4 (permalink)
ddd4114 All powerful D-series member iTrader: (6) Join Date: Mar 2006 Location: Columbus, OH Posts: 3,423 Rep Power: 14	Why do you want a larger throttle body? __________________ Dan Read My Stuff: Beating a Dead Horse: The Great Torque vs. Horsepower Debate Advanced Tech: What Makes Torque, and Why Do I Care?

12-04-2008, 12:29 PM	#5 (permalink)
remoer The Great Weldini iTrader: (53) Join Date: Jun 2005 Location: fountain inn, sc. Posts: 8,785 Rep Power: 20 View My Photo Gallery	a zc tb is 55mm but the B18a is 58mm and ODB0. __________________ 1 monkey power = 0.332 hp. The suspension should always be faster than the engine - BMW The term stage was created to make mentally slow ppl feel physically fast. my DOHC ZC - 133.73whp and 108.48wtq (tuned on a Dynojet)

12-04-2008, 10:01 PM	#6 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	b18 have a different bolt pattern...

12-08-2008, 11:53 PM	#7 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	i real dont even know how much MM is my stock 89' d16a1 throttle body..any one?.. p.s the maxbore.com looks realy good 80% chance im going that way..thanks jlicrx

12-09-2008, 08:43 PM	#8 (permalink)
Aquafina D-series.org Sponsor iTrader: (24) Join Date: Feb 2005 Location: Johnson City, TN Posts: 3,275 Rep Power: 13	Go maxbore if using A6 IM. I'm using a GSR TB on a customers A6 using jli's manifold adaptor an Performer-X IM. __________________ Whoopee Doo Racing Sponsor of ITR Expo 6-9, Rocket Motorsports, MFactory, CP Pistons, Action Clutch, Supertech Official MFactory North American Installer MFactory D Series LSD $684.95 shipped!

12-12-2008, 11:35 PM	#9 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	ok now heres a question..what would do better..buy the ZCspeed plate and use a Skunk2 mani with a b-series T-b or bore out my A6 mani and go with maxbore and bore my t.b aswell...which would be better?

12-13-2008, 09:01 AM	#10 (permalink)
jlicrx D-series soldier iTrader: (0) Join Date: Jan 2007 Location: Colorado Springs, CO Posts: 923 Rep Power: 7	if you have a stock engine, the Skunk2 manifold is going to slow it down - your best bet is to either: find an OBD0 DOHC ZC intake manifold, have Maxbore bore out the throttle body and port match the intake to the throttle body or find an OBD1 DOHC ZC intake manifold which will accept the larger B-series throttle bodies - without any internal mods, like camshafts, higher compression, etc., the larger throttle body will give you a little more power at high rpm but at lower rpm it will tend to bog and stutter - the larger the throttle body, the more bogging and stuttering - the Skunk2 manifold has too large of plenum and runners for the NA, basically stock, engine __________________ ZCspeed Racing

12-13-2008, 09:06 AM	#11 (permalink)
esdafoo D-series lover iTrader: (0) Join Date: Jan 2006 Location: Quebec, Canada Posts: 118 Rep Power: 8	You can solder an aluminium plate on your current manifold, port it to Xmm to match the TB you want to use. I got an H22 62mm TB on my A6 modified manifold : esdafoo's ED Y7-T project __________________ Making power is all about the package. Sorry for my bad english, I'm french.

12-14-2008, 11:25 AM	#12 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	wanna sell it?...

12-16-2008, 07:28 AM	#13 (permalink)
esdafoo D-series lover iTrader: (0) Join Date: Jan 2006 Location: Quebec, Canada Posts: 118 Rep Power: 8	Absolutely not! :P __________________ Making power is all about the package. Sorry for my bad english, I'm french.

12-17-2008, 08:27 AM	#14 (permalink)
asianflava n00b iTrader: (0) Join Date: Oct 2007 Location: Austin, TX Posts: 6 Rep Power: 0	I had the throttle body on my ZC bored out. I don't remember the name of the place, but I had to send it to GA to get the work done. Did a great job, made a new throttle plate, they shaved the shaft and screws too. Don't remember how much it cost, but I don't think it was too much (or I wouldn't have had it done).

12-19-2008, 10:03 PM	#15 (permalink)
cahitapower Member iTrader: (0) Join Date: Jul 2006 Posts: 98 Rep Power: 7	aww mann....would had love to use it on my build.. p.s i emailed maxbore a few times and no answer.. ...

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