95mysticta

iTrader: (4)

Well ive been hearing alot of stories about 58mm tbs being very sensitive under low load where it makes the drivetrain load and unload itself causing it to jurk a bit. I have a Professional Products and i know a buddy that had a Lingenfelter tb with the same issues. Its VERY annoying and as much as i dont want to downsize to a 52mm Holley i bought to try out that has none of these issues and no loud whisting either i dont want to loose power as there was a huge big decrease in air volume when i stepped down.

RamAir95TA

iTrader: (2)

The general consensus is that just about all of them require some minor tweaking. I had no problems with my Holley 52mm other than having to slot the TPS, but my 58mm (also a Holley) needed the same and additionally some PCM work to keep the TPS from going too far past WOT.

S10Wildside

In my opinion, the quality does not get any better than a TPIS throttle body.

quik95lt1

iTrader: (7)

i ran the holley billet 58mm for years with no issues at all.....

SS RRR

iTrader: (2)

I have been running a LPE/Acell TB for 12 years. Only problem I ever had was it sticking WOT twice when it was new.

ElkySS

iTrader: (6)

im running a bbk 58mm, bought it with the motor. doesnt have a problem with the tps. it used to stick closed after a hard run but it hasnt done that in a long time. the linkage had some play in it. a quick spot weld fixed that. (play between the cam and the blades) other than that, drives great

BizZzatch350

iTrader: (33)

I have has a AS&M 54mm and now a TPIS 58mm, no issues with either.

Nostang

iTrader: (4)

Arizona Speed and marine was the best I have seen. I used a 58mm one on my last 355 build. Great quality and machine work on that piece.

z_speedfreak

iTrader: (3)

both those products are top notch, can't go wrong with either imo

95mysticta

iTrader: (4)

Yeh the 52mm holley i have had zero issues it was top notch and didnt drastically drop the rpms down to the 4-500rpm area and bounce back up 750ish when i popped it out of gear coming to a stop. I know the BBKs are noisy generally and have issues with idle sometimes. I think if anything id probubly grab another Holley as i hear nothing but great things and they look plain awesome. AS&M and TPIS are nice too but just alot of cash and dont find them up for sale used alot.

Thanks!

sweetbmxrider

iTrader: (13)

My bbk 58 was garbage.

TPIS 58 is worlds better. Hasn't given me a single hiccup.

irocurpony8489

iTrader: (2)

[QUOTE=BizZzatch350;15164769]I have has a AS&M 54mm and now a TPIS 58mm, no issues with either.[/QUOT

do you know where i can find a 54mm as&m?

C_Rules

iTrader: (7)

azspeed-marine dot com

madhatter

I have a Holley 52mm. I did slot the TPS to make sure it was spot on with the readings, although I am sure it would have been fine for 99% of the people out there. Other than that it has been a quality piece.

z28_theantirice

iTrader: (2)

polished 58mm Summit branded TB here, been on the car for 3 years with no issues.

BizZzatch350

iTrader: (33)

It was an odd ball sized TB, they sold a bunch of them for fairly cheap on their ebay store when I got mine. I think the gasket quality was nicer with the TPIS but both were over all really nice. MTI and a few other used to just port the stock LT1 unit for 52mm.

Jpack

iTrader: (12)

Arizona speed and marine here. They are a work of art and never once a problem. Pricey but well worth the wait and the $$$$$

Mystery Bird

iTrader: (7)

My Holley I had to make a throttle stop because the blades actually opened past WOT. Other than that quality is nice.

95mysticta

iTrader: (4)

I had to slot my tps to work the holley 52 no big deal. Ill likely grab a used Holley or AS&M if i find one decently priced! Thanks for the help!

irocurpony8489

iTrader: (2)

they only list a 58mm