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Aftermarket throttle body's which one should I use?


onesickcrx
Brother of the Year
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Galant VR-4 org Post #: 739847 posted 12/29/08 10:49 PM     Remind Me!  Send Private Message   Edit Post      
So I am about to order a new JMF intake manifold and I am looking at all these different throttle body's that fit. Such as BBK, Power plus, Q45, Accufab, Stock bored to 63mm and 65mm. I have also heard the newer evo's throttle body's fit is that true? For starters I would like to get a 2 1/2" or bigger throttle body. Not to sound like a ricer but the stock one is ugly, and I don't see a point in paying too bore a stock one that I only use the tps sensor on. Why not buy a better one with the money I am putting towards boreing my stock one. So here is the question which one... Any feed back on any of these aftermarket ones or any other ones?

Thanks



Lack of boost

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EMX5636
Carbon Fiber Cage
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Galant VR-4 org Post #: 739894 posted 12/30/08 07:48 AM     Remind Me!  Send Private Message   Edit Post      
If you want reliability, stay with the stock one... IF you have to go bigger, then I would get the Q45. Most of the aftermarket "Ford Mustang" ones have been known to break the throttle shaft. I'm currently running an LS1 tb on my Galant, and will be selling the manifold/TB together pretty soon. I will be going back to a stock setup. GL.



91 #108/2000- link
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324vr4
manly-loud yet refined
324/1000


Galant VR-4 org Post #: 739896 posted 12/30/08 08:03 AM     Remind Me!  Send Private Message   Edit Post      
Do you have pictures EMX5636 of your IM and TB setup?! You just sparked my interest

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ktmrider
Cool Guy Crowd


Galant VR-4 org Post #: 739901 posted 12/30/08 08:34 AM     Remind Me!  Send Private Message   Edit Post      
Quoting onesickcrx:

So I am about to order a new JMF intake manifold and I am looking at all these different throttle body's that fit. Such as BBK, Power plus, Q45, Accufab, Stock bored to 63mm and 65mm. I have also heard the newer evo's throttle body's fit is that true? For starters I would like to get a 2 1/2" or bigger throttle body. Not to sound like a ricer but the stock one is ugly, and I don't see a point in paying too bore a stock one that I only use the tps sensor on. Why not buy a better one with the money I am putting towards boreing my stock one. So here is the question which one... Any feed back on any of these aftermarket ones or any other ones?

Thanks


Is it just looks you are concerned with or do you have big power goals?
For one, there is more than just a TPS on the stock TB. The ISC, closed throttle switch, and FIAV are also "attached". If you DD the car in NY ( colder than most areas of the country ) you will regret deleting the ISC, CTW, and ( maybe ) FIAV. You would also need some type of ECU management to overcome the loss of the ISC else live with some idle surge.
Stock 1g intake system is proven fine to 400+ hp. Throw on a 2g elbow, clean up the stocker, and enjoy a much less tempramental whip....



Mike O.
#464/1000 - Sold
05 Legacy GT - slush box
#86/2000 - Sold ( again )


Edited by ktmrider (12/30/08 08:36 AM)

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onesickcrx
Brother of the Year
449/2000



Galant VR-4 org Post #: 739910 posted 12/30/08 09:26 AM     Remind Me!  Send Private Message   Edit Post      
I am and have only been running the tps sensor using dsmlink. No problems so far? I would like a throttle body setup that is capable of well more then 400hp for the years to come hehe. I have heard that the BBK had problems as well. Is Accufab the same thing?



Lack of boost

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ktmrider
Cool Guy Crowd


Galant VR-4 org Post #: 739921 posted 12/30/08 10:16 AM     Remind Me!  Send Private Message   Edit Post      
Ok, no info on your sig makes for lots of speculation.
There are quite a few posts regarding the aftermarket TB's both here and on the TEL sites. Yes, the BBK has a habit of "losing" butterfly bolts and sketchy quality.
Look for a recent thread here about a custom built TB. Not sure if it ever got thru the beta stage but could be just what you are looking for....



Mike O.
#464/1000 - Sold
05 Legacy GT - slush box
#86/2000 - Sold ( again )

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Hksvr4
The New Vettel


Galant VR-4 org Post #: 739928 posted 12/30/08 10:40 AM     Remind Me!  Send Private Message   Edit Post      
I made 415whp with a Magnus intake, 1g throttle body and hks elbow. All I did was changed the seals and cleaned it out. That's it. Aftermarket ones are not meant for DD and making it work with a stock ecu is a bitch.

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Dialcaliper
Flagration Member
1269/2000


Galant VR-4 org Post #: 739958 posted 12/30/08 11:41 AM     Remind Me!  Send Private Message   Edit Post      
A stock throttle body bored to 63mm (2.5") or a non-turbo TB will produce pretty good results (the 63mm is a 10% increase in area). Trying to get any more responsiveness than that will be drowned out by the turbo lag on a big turbo, or flow restriction on a smaller one, and simply leave you with less fine throttle control (which should not be confused with "responsiveness".) Going with a larger throttle body than that will really only improve all-out flow on something like a drag car, or response on a N/A engine with a short intake path.

Basically, having a throttle body larger than the other components in your intake tract won't really provide much benefit when you consider the other things in the way (even a GT35 or GT40 compressor has only a 2.5" outlet, and there's an intercooler in the way too) If you start playing with GT42's or similarly sized snails, with appropriately sized piping and intercooler, you'll actually stand to gain something.

Evo 8-9 throttle bodies are only 60mm - not really much different from the stock one.



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Edited by Dialcaliper (12/30/08 11:42 AM)

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gixxer
Unregistered


Galant VR-4 org Post #: 740071 posted 12/30/08 06:07 PM     Remind Me!  Send Private Message   Edit Post      
Theres a car on the dsmlink forums that made 850awhp on a stock 2g TB last year. It was the TPG 2G with a 42R.

Big throttle bodies on street cars is a bad idea, all they do is hurt driveability for a TINY gain in flow.

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89coltgt
Hand Model


Galant VR-4 org Post #: 740097 posted 12/30/08 07:30 PM     Remind Me!  Send Private Message   Edit Post      
I have been looking into this myself for the d50(not a daily driver). It seems that most of the "stock" 75mm t-bodies tend to breat shafts, I myself was thinking of either an fftec 75mm or the q45. If I go with the q45, I would like to remove all of the unnecessary fittings and nipples.

Anybody running a q45?



89 Colt GT-14b, 650's, dsmlink, 2600
89 Colt GT-Stock
88 d50 4g63t, southbend dxd clutch, crower 272's, dsmlink




Edited by 89coltgt (12/30/08 07:31 PM)

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keydiver
Unregistered


Galant VR-4 org Post #: 740105 posted 12/30/08 07:46 PM     Remind Me!  Send Private Message   Edit Post      
I too recommend simply getting your stock TB bored out by someone like throttlebodys.com:
Throttlebodys.com
You won't have any driveability issues, and the TPS and ISC will be 100% functional, which you can't say for most of the options you listed.

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Brianawd
Higher Launch RPM
439/1000


Galant VR-4 org Post #: 740164 posted 12/30/08 10:25 PM     Remind Me!  Send Private Message   Edit Post      
Stick with a stock TB. I am still on a stock TB and was all last year. If you have never driven a dsm with a intake manifold and big TB you should because it sucks. It will make you love the stock dsm TB. The only thing I am going to do later down the road is have one of my spare TB rebuilt and bored out.



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EMX5636
Carbon Fiber Cage
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Galant VR-4 org Post #: 740182 posted 12/30/08 11:04 PM     Remind Me!  Send Private Message   Edit Post      
I'll grab a couple pics for you tomorrow.



91 #108/2000- link
97 Kawi ZX7R Street / 03 ZX6R Track
03 Kawi KLX400R Supermoto
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Mark
Trying To Sell Out


Galant VR-4 org Post #: 740207 posted 12/31/08 01:47 AM     Remind Me!  Send Private Message   Edit Post      
Gow much power are you making? To be honest I still have a stock TB. I have been told switching to a new TB only gives a little more HP so why switch? It's really not worth the idle issues etc.. I made a tad over 600 awhp (with auto) (had other bottlenecks) on the stock TB. I don't see a reason to upgrade.


Edited by Mark (12/31/08 01:50 AM)

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mountaineerjeff
<3 NJ
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1844/2000
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Galant VR-4 org Post #: 740209 posted 12/31/08 01:59 AM     Remind Me!  Send Private Message   Edit Post      
Quoting gixxer:

Theres a car on the dsmlink forums that made 850awhp on a stock 2g TB last year. It was the TPG 2G with a 42R.




well i guess TPG gets around, lol. the 2g has actually broken 1000 just to give you and update. huge tb are definently not the answer to power



We didnt start the fire! Billy Joel:E39A expert
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2012 EVO, too bad its not a Mitsubishi


Edited by mountaineerjeff (12/31/08 02:01 AM)

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onesickcrx
Brother of the Year
449/2000



Galant VR-4 org Post #: 740233 posted 12/31/08 07:15 AM     Remind Me!  Send Private Message   Edit Post      
Ok I would have to say at this point that you've conviced me to stay stock. I will just bore out my stock throttle body. I was reading That Buschur's cars most of them run stock throttle bodies bored to 65mm. Do we know If anyone bores 65mm 1G throttle bodies?



Lack of boost

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Polish
Dr. Pilosh Haagenscodyberger


Galant VR-4 org Post #: 740235 posted 12/31/08 07:37 AM     Remind Me!  Send Private Message   Edit Post      
Stock is fine, just clean it and put new seals in it. You don't need to bore anything.



My car site
Old GVR4 #1186/2000

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BadVr4
wanted a different answer
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Galant VR-4 org Post #: 740337 posted 12/31/08 01:01 PM     Remind Me!  Send Private Message   Edit Post      
somebody did a comparison on throttle body's, not sure if it was buschur, ams or someone else, i believe they tested the stock throttle body to a mustang style much bigger throttle body with a t67 turbo and they only gained 1whp, but the driveability was much worse with the bigger tbody.

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Jostar
Dialing fail
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Galant VR-4 org Post #: 740363 posted 12/31/08 02:41 PM     Remind Me!  Send Private Message   Edit Post      
Stick to a overbored stock tb, My friend went thru 2 bbks in a week! Then he moved to a FordRacing TB for a rustang, I rather stick to a Stock TB unless it's a full drag car, then i would upgraded to Q45 tb.



welded center diffs SUX

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onesickcrx
Brother of the Year
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Galant VR-4 org Post #: 740739 posted 01/01/09 10:19 PM     Remind Me!  Send Private Message   Edit Post      
Where is the best place to find one of these N/T throttle bodies?



Lack of boost

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Andy_S
Overcomplicated


Galant VR-4 org Post #: 740740 posted 01/01/09 10:26 PM     Remind Me!  Send Private Message   Edit Post      
Off a N/T DSM. Has to be a 2.0 though.



I found v8's...

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onesickcrx
Brother of the Year
449/2000



Galant VR-4 org Post #: 740751 posted 01/01/09 10:56 PM     Remind Me!  Send Private Message   Edit Post      
So 2.0 91-94 N/T?



Lack of boost

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Andy_S
Overcomplicated


Galant VR-4 org Post #: 740756 posted 01/01/09 11:14 PM     Remind Me!  Send Private Message   Edit Post      
yes



I found v8's...

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bazeng
work in progress


Galant VR-4 org Post #: 740797 posted 01/02/09 05:56 AM     Remind Me!  Send Private Message   Edit Post      
I agree you do lose alot of drivability down low if you go too big of tb, but imo they are not the nicest in regards to idle control / fiav if in use with an aftermarket ECU.

The stock tb idle control requires the use of 4 outputs which many older aftermarket ECU's couldn't accomodate for. Anyway, over here in AUS a quick and simple upgrade is the FORD FALCON XF throttle body which can be purchased for about $40.00 AUD. As for IDLE control, it uses a single wire stepper motor.

As for install, it requires a slight port job to the inlet manifold (about 67mm), and the stock studs removed with the installation of a combination of shorter studs and bolts.

But the N/A tb's are a better choice too over stock IMO.



Australia's Slowest VR4

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Dialcaliper
Flagration Member
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Galant VR-4 org Post #: 741658 posted 01/04/09 10:52 PM     Remind Me!  Send Private Message   Edit Post   
Steve at Throttlebodys.com will do 65mm for you (or anything in between that he can make a throttle plate for), but only by special request. According to him, it's a bit of a crapshoot - you have to find a stock TB that came out with a slighly thicker casting than average - if its too thin, it will be too flimsy to torque down, and probably end up cracked. Be prepared to send him several TB's to find one good one though.

Quoting onesickcrx:

Ok I would have to say at this point that you've conviced me to stay stock. I will just bore out my stock throttle body. I was reading That Buschur's cars most of them run stock throttle bodies bored to 65mm. Do we know If anyone bores 65mm 1G throttle bodies?





1269/2000 Summit White

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