Big Bad Bud

iTrader: (3)

Anyone Have a 52mm or 58mm TB from Summit Racing?

If so, Any good? Any issues?

http://www.summitracing.com/parts/SUM-227701/

93Z2871805

iTrader: (5)

I can stand behind the Professional Products 58mm TB. It's about the same price as the summit part without being on sale. I know the PP 52mm TB is $210 on summit. I bought my PP 58mm TB from CNCmotorsports about 2 years ago for around $165-$185 though.

DAVE00

iTrader: (10)

I've heard the PP model has had a ton of issues with the blades sticking open. Do a search and you'll find some threads about it.

dlk1950

I've had a summit 58mm on mine for a year now with no issues.

harvickgm

iTrader: (10)

Yea, i have had issues with Professional Products before as well.. they have horrible sealing issues. On their LS intakes, i have seen them no seal properly and have a hell of a time tuning them and have heard the same for the LT Throttle Bodies as well.. id stick with the Summit one before ever going with them

stevo9389

i have had mine for a little over 4 years now. i am 99% sure it is a professional products but it looks exactly like the one in your link. i have never had a problem with leaking or the throttle blades sticking open and this is actually the first thread i noticed that even mentioned it. i have had several people drive my car before and after the TB and the only thing noted was how much better the throttle response was.

93Z2871805

iTrader: (5)

My PP TB has worked just fine, no leaks etc. I drove it everyday for 2 years. I noticed better throttle response as well. I'm now moving up to a single plane with an LS style TB on an elbow with the EFI Connection 24x. The new manifold, TB, and elbow are all coming from PP. If the TB doesn't work out however, I'll be going to a Wilson elbow and a NW 96mm or 102mm.

ScreaminRedZ

iTrader: (3)

I'm also curious about people's experiences with the Summit TB. My brother will be at that point later this year, and it'd be nice if he could save some $$.

Btw OP, your car looks good with those wheels and that color combination

bigj2717

iTrader: (15)

I've had a Summit 58mm for about 2 years and I havent had one problem with it.

z28_theantirice

iTrader: (2)

I have the summit 58mm polished unit, has been flawless since day 1 and that was 3 years ago.

Badazz 97 TA

iTrader: (18)

i have the PP which is the same thing as the summit brand. The only problem i had was after driving for a while with the engine hot, then letting it sit, then starting it back up 20mins later or however long, the blades would stick closed and i would have to press the gas pedal a little harder to get it to open that first initial time. then it would work normal. After 1-2,000 miles it worked fine and didnt do it anymore.


it works good. nice crisper throttle response. no issues with the tuning part. that was all pretty easy for my tuner to do. if you have an auto you need to get the shift points changed since you will be using less throttle to move the car. i think all we did was shift the #'s down or up on the tables. so that it shifted like it did originally at 20% throttle but now its at 15%. understand? not those specific numbers but an example.

Big Bad Bud

iTrader: (3)

Thanks for the input! I think I'm going with the 52mm because of my limited mods. BTW, whats with the "24.2@70mph" in your sig?

gregrob

iTrader: (8)

The summit one is Trickflow. They work well.

I've seen no first hand issues w the pro products either

TravisMcGill2000

iTrader: (2)

Like gregrob siad trickflow makes the summit 1. Im running the trickflow 1 with out any problems

ScreaminRedZ

iTrader: (3)

Sounds like that might be the way to go, thanks!

illusions

iTrader: (3)

I had a 58 summit on mine with no issues. It's for sale too $175 + shipping

Going ls platform so have many good LT1 parts for sale.

Evren Erdogan

I just bought a tb from summit knowing that it has some stic sticking issues I called them and told them it sticks between 1000 to 2000 and the guy on the phone said he never got complaint about sticking issues .what are u gonna tell him now? is it possible that none of the guys here who have sticking problems have not called and let them know about it yet?

BALLSS

If going 52, I would and did, have my stock 48 bored to 52. None of the idle air passage issues most aftermarket TB's have.

you will need to get PCM re-tuned for the larger TB, especially on a A4 car

shbox

...this thread is 4 years old...

noer

I got the summit one and it works great for me