Which throttle Body - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 08-01-2009, 04:31 PM   #1
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,923
Total Cats: 0
Default Which throttle Body

I'm looking to have an intake manifold built and I need to decide this weekend as to which throttle body to use. The requirements are as follows: it needs to be able to flow enough for 500 rwhp without being a restriction and also be able to work with the factory ecu if possible.

It seems that everyone likes to use the mustang throttle body, but I can't help but think that there would be other viable options to use. I've always like to try and use other oem parts if possible because they are cheap but reliable. There's one from an Infinity Q45 that I think might work, but I thought I would post up to see if there are any other ideas are out there.
JayL is offline   Reply With Quote
Old 08-01-2009, 05:13 PM   #2
Senior Member
iTrader: (12)
 
Join Date: May 2008
Location: Roselle, Illinois
Posts: 846
Total Cats: -35
Default

5.0 TB for the win! the reason for the mustang tb is there cheap a dime a dozen, they range in size from 60mm to 105mm so plenty of choices. they have a simple 3 wire tps for standalones and a idle adjsuting screw. you could look at honda crap but there alot more $$ theres nothing wrong with the 5.0 tb, there are plenty 1000hp mustangs running these tb, more 5.0 then you will find q45's
Hot_Wheels is offline   Reply With Quote
Old 08-01-2009, 05:24 PM   #3
Senior Member
 
Join Date: Apr 2008
Location: NHR, TX
Posts: 536
Total Cats: -2
Default

I didn't think anything on the Q45 was cheap.

When it comes to aftermarket, I think most import guys think of honda, but the ford guys with the 5.0 offer more cheap/quality parts than you can shake a vtec solenoid at.

Why reinvent the wheel?

Quote:
Originally Posted by Hot_Wheels View Post
5.0 TB for the win! the reason for the mustang tb is there cheap a dime a dozen, they range in size from 60mm to 105mm so plenty of choices. they have a simple 3 wire tps for standalones and a idle adjsuting screw. you could look at honda crap but there alot more $$ theres nothing wrong with the 5.0 tb, there are plenty 1000hp mustangs running these tb, more 5.0 then you will find q45's
apariah is offline   Reply With Quote
Old 08-01-2009, 09:37 PM   #4
Elite Member
iTrader: (10)
 
Join Date: Oct 2008
Location: Seattle, Wa
Posts: 1,780
Total Cats: 30
Default

My vote goes towards either the q45 Tb or one from a DSM. The non turbo throttle bodies are big enough to support 500hp. The turbo throttle bodies are just a smidge smaller and probably harder to find in good condition, although I bet Andre has some laying around or could find one.
Jeff_Ciesielski is offline   Reply With Quote
Old 08-02-2009, 11:10 AM   #5
Junior Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Murphy, Tx
Posts: 182
Total Cats: 6
Default

If you want to use the stock TPS use the universal 96-03 mustang throttle body from Edelbrock they came in both 70mm and 75mm. BRP/Stage One Tuning makes an adapter kit to use the stock TPS. In fact I've got a spare TPS adapter kit just lying around.
Fidgitk is offline   Reply With Quote
Old 08-02-2009, 11:54 AM   #6
Elite Member
 
Join Date: Feb 2008
Location: Victoria, BC
Posts: 2,322
Total Cats: 12
Default

I don't want to hijack this thread, but how easy does the 5.0TB mount to a stock 1.8 manifold?
dustinb is offline   Reply With Quote
Old 08-02-2009, 12:23 PM   #7
Newb
 
Join Date: Dec 2008
Location: Roswell, GA
Posts: 30
Total Cats: 0
Default

It doesn't, he's making a custom manifold
SeePlusPlus is offline   Reply With Quote
Old 08-02-2009, 12:47 PM   #8
Elite Member
 
Join Date: Feb 2008
Location: Victoria, BC
Posts: 2,322
Total Cats: 12
Default

Quote:
Originally Posted by SeePlusPlus View Post
It doesn't, he's making a custom manifold
I know he's making a custom manifold, but I was under the impression others had used it with a stock manifold. Guess not.
dustinb is offline   Reply With Quote
Old 08-02-2009, 12:51 PM   #9
Elite Member
iTrader: (15)
 
Join Date: Dec 2007
Location: San Antonio, Texas
Posts: 4,889
Total Cats: 28
Default

Even if it did fit it would probably be pointless. As I remember, the inside diameter of the intake manifold is no larger than the stock TB.
ZX-Tex is offline   Reply With Quote
Old 08-02-2009, 12:58 PM   #10
Newb
 
Join Date: Dec 2008
Location: Roswell, GA
Posts: 30
Total Cats: 0
Default

The only time I've heard of people using a Mustang throttle body with the stock IM is when doing the dual throttle body mod for superchargers. I can't recall if it hooks right up though, I highly doubt it.
SeePlusPlus is offline   Reply With Quote
Old 08-02-2009, 01:10 PM   #11
Elite Member
 
Join Date: Feb 2008
Location: Victoria, BC
Posts: 2,322
Total Cats: 12
Default

Quote:
Originally Posted by ZX-Tex View Post
Even if it did fit it would probably be pointless. As I remember, the inside diameter of the intake manifold is no larger than the stock TB.
I wouldn't be doing it for performance gains at all, but to utilize different sensors. I currently have a flyin miata adapter plate mounted on my 1.8 manifold and a 1.6 TB. The adapter plate pushes the throttle body out too far, and my upper radiator hose rests on my tight radius 90 elbow. Now that i'm running standalone, I have been keeping my eye open for a 1.8 TB, but I would rather get something more generic like a 5.0TB that can be found near anywhere, and I could get rid of the stock idle system as well.
dustinb is offline   Reply With Quote
Old 08-02-2009, 01:27 PM   #12
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,923
Total Cats: 0
Default

Quote:
Originally Posted by Fidgitk View Post
If you want to use the stock TPS use the universal 96-03 mustang throttle body from Edelbrock they came in both 70mm and 75mm. BRP/Stage One Tuning makes an adapter kit to use the stock TPS. In fact I've got a spare TPS adapter kit just lying around.
Now we're talking. Is their kit a complete solution or does it still require an aftermarket ecu to function correctly. Ideally I would like this to be one thing that I'd like to be able to use with the stock ecu. The less I have to change out at emissions time the better. I couldn't find this on their website, anyone have a link? If not I'll just give them a call on Monday.
JayL is offline   Reply With Quote
Old 08-02-2009, 11:00 PM   #13
Junior Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Murphy, Tx
Posts: 182
Total Cats: 6
Default

I've got a TPS adapter kit in hand I can sell you for $30 shipped.
Here is the kit they sell.
TPS Hardware Bag, '94-'97
Fidgitk is offline   Reply With Quote
Old 08-04-2009, 04:46 AM   #14
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,923
Total Cats: 0
Default

After doing a bit more research I'm going to give the Q45 tb a try.
JayL is offline   Reply With Quote
Old 08-04-2009, 11:01 AM   #15
Senior Member
 
Join Date: Apr 2008
Location: NHR, TX
Posts: 536
Total Cats: -2
Default

Quote:
Originally Posted by JayL View Post
After doing a bit more research I'm going to give the Q45 tb a try.
Just wondering Why?
apariah is offline   Reply With Quote
Old 08-04-2009, 10:13 PM   #16
Elite Member
Thread Starter
iTrader: (12)
 
Join Date: May 2007
Location: Austin, TX
Posts: 1,923
Total Cats: 0
Default

Well, back to the drawing board. It won't work with the manifold I was looking at, so I guess it's either the Mustang junk or find a different manifold.
JayL is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:08 PM.