Throttle body help ?

Black Knight

I Glow Therefore I am
Re: Throttle body help ?

Are you thinking about upgrading the stock one from a 48mm to 52mm or purchasing an aftermarket one?
 

Flyin Ryan

hated cuz he drives fords
Re: Throttle body help ?

I would have to say worry about the biggest bottle kneck of the motor first.. which If I had to guess would be the 2 inch inlet of the stock upper intercooler :)
 

Black Knight

I Glow Therefore I am
Re: Throttle body help ?

vortecfiero said:
there are guys on the board running over 600 hp on the stocker.

True, but they leak, so I was trying to figure out what he's thinking. I would have Matt upgrade it simply to resolve the leak issue, but since he's in there you might as well have it ported. :2cents:
 

Flyin Ryan

hated cuz he drives fords
Re: Throttle body help ?

Black Knight said:
True, but they leak, so I was trying to figure out what he's thinking. I would have Matt upgrade it simply to resolve the leak issue, but since he's in there you might as well have it ported. :2cents:

I totally agree.. if your going to send it out to have it fixed then why not have it bored out to 52mm for a few dollars more
 

gjp

another post whore
Re: Throttle body help ?

shaft will leak because its metal to metal. The guy puts a bearing in there and opens it up to 52mm. I noticed a small increase in performance, Not worth it on a stock truck unless you have a vac problem like I had. Eventualy all stock TB will develope a leak.

the guys name Matt blum think this is his e-mail mjb_machine@yahoo.com
and his number 1-402-740-7663

Think Chris knows him well.
 

gjp

another post whore
Re: Throttle body help ?

Actualy the ecu is made to compensate for the small leak most have. Mine had a bad leak and my Sy would hunt for a idle. Tire tube test showed a larg leak. After the fix my idle calmed down.
 

alwayscode390

pppssssshhhhhtttttttttttt
Re: Throttle body help ?

So there are no aftermarket setups available? I run a 58mm one on my LT1 and the stocker is 48mm like ours. I would think the turbo setup would need as large or LARGER with all the air being forced through it?! ---
 

Black Knight

I Glow Therefore I am
Re: Throttle body help ?

alwayscode390 said:
So there are no aftermarket setups available? I run a 58mm one on my LT1 and the stocker is 48mm like ours. I would think the turbo setup would need as large or LARGER with all the air being forced through it?! ---

No, there isn't an aftermarket one that will work with our factory plenum since its opening is only 52mm. If there's one available you would have to machine the plenum openings larger. When upgrading my stocker I asked Matt about how big we could go and he said the largest you could machine the factory T/B would be 53.5mm, and that is pushing the edge of safe, even that size has a tendency to crack. That's why he stays safe with 52mm.

Another alternative is going with the a Edlebrock intake, a aftermarket 90* elbow, and whatever T/B that works with that setup.
 
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syclonekid43

New member
Re: Throttle body help ?

i searched on here and could not find how to do the test. im sure mine leaks alot. in gear idle is fine. when its in park. idle goes up and down all the time. i hate my truck. its always something.
 

Flyin Ryan

hated cuz he drives fords
Re: Throttle body help ?

syclonekid43 said:
i searched on here and could not find how to do the test. im sure mine leaks alot. in gear idle is fine. when its in park. idle goes up and down all the time. i hate my truck. its always something.

remember syty's have horrible idle from the factory.. the later revision to the ty chip helped alittle more though but still wouldn't be silky smoothe like some cars

Here's the bike tube test to see exactly how bad of a vacuum leak you have in the blades

http://www.sytyarchives.com/howto/viewarticle.php?article_name=find_vacuum_leak.php&dir=engine
 

Raist103

Engine Killer, iPhone Killer, Lawnmower Killer
Re: Throttle body help ?

my stock never touched 100k mile tb made 500 to the wheels. unless you go to a elbow intake there is no reason to swap tb's
 
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