redbird555

iTrader: (14)

Hey guys I'm getting ready to install my fast 102 and I need a tb. My thing is that I've heard the tuning nightmares with 102 cable tb's and how the response sucks and idle is finicky with the large blade and small IAC.

Ideally I really want to stay with a 92 tb but I cant find one other than the FAST that will fit. Fasts also have tiny iac holes and sometimes have issues. My original plan was NW or PTM but they dont seal at the bottom of the intake. I'm thinking about making a spacer/adapter if worse came to worse but wondering what you all think or have done.

Dan

BigBirdLS1

I've been told by my tuner that a LS2 TB will be what I need to solve my idle and driveability issues. I have a DBW TB though and yours is cable driven. Maybe the trucks that have 6.0 V8's in them have a 90 or 92 TB that you can use

redbird555

iTrader: (14)

What tb are you running? And yes my main concern is the iac issue on fast tb's then the loss of driveability with a 102. I've thought of making a small adapter plate and gasket to go between a NW and the 102. anyone else have solutions? I know a lot of people run a 92/102 combo

redbird555

iTrader: (14)

Well since no one has any answers on this. What does people with the fast 92 tb think any problems? Would I be better off with a nw 102?

Undertow74

iTrader: (45)

I run a fast 92 on mine no issues. I have a brand new NW 102 sitting in a box I never used lol

big hammer

I also run a fast 92 and it's been flawless. expensive, but a good piece. I did have a hanging idle issue off the start but the cable was just a tad too tight and needed to be adjusted.

cable travel is perfect from closed to WOT.

big hammer

the 102 can have idle issues of the gap between the throttle blade and housing is to big, allowing in to much unmetered air. the bigger the TB, the more prone it is to that.

the 102 get most of it's gains over the 92 with it's bigger plenum, IIRC.

ls1 1990 VN

I had no problems with a PTM 102 until just the other week a backfire blew the TB blade off,

Have a brand new NW 102 now that will be fitted shortly, it's a much nicer looking piece than the PTM.

It's amazing how those that have never used a 102TB seem to know the pitfalls of using one.

Don't believe a word of what they say, once it's fitted and tuned you won't look back.

redbird555

iTrader: (14)

Wanna sell it?? lol
Ya I've had both but this is my first 102. After seeing them next to eachother I would pick the 102 every day its def a more sturdy piece and the runners are miles better than the 90/92
Thats the thing I'm a cam only ls6 so I just worry about the loss in low end driveability with the 102. Did you lose anything down low?

ls1 1990 VN

I had no low end drivability loss, I was then running a 222/222 cam,
My ECU is after market which is not as tunable as the factory ECU down low

With my current Tick stg 3 cam I am having issues with my tune at present but that's the cam v my ecu not the TB

1994_383_Z28

iTrader: (1)

I have no experience running a 102mm throttle body, but I have heard they have worse driveability than the 92mm ones. I've also heard from sponsors (Tick Performance) that tuning the NW92 is easier than tuning with the FAST 92 due to the IAC..

I don't really understand what you're saying about the NW92 not sealing? Can you elaborate..

redbird555

iTrader: (14)

on a fast 102 the opening is obviously bigger than a 92mm tb would be... well the nw looks like this when mounted

the 92 fast has a larger flange that lets it seal. i was thinking about making a plate to go between an nw and the intake but idk if that will space the tb out too far and hit the water pump. I may end up having to go with the fast 92 although theyu have this option available now which i kind of like lol

http://www.ws6project.com/user_stor/...oducts_id=3411

ss4chad

iTrader: (26)

I have a ported FAST 90 and a Holley Billet 90 TB. I was thinking about upgrading to the 102 since I have a big cube motor (447) and 4.125 stroke crank but I think the 90 will do just fine, unless I get a great offer on a 102 and TB.

Chad

big hammer

i'm just running am internally stock ls1 so I didn't really need the 102 and possible idle issues that go with it.

redbird555

iTrader: (14)

exactly... I dont think the 102 tb will beneft me at all and just cause tuning issues. I'm probably going to do the fast 92 tb i posted up with a velocity ring in the opening. still get all the benefits of a 102 manifold and the ease of a 92tb tuning. After seeing the 2 next to each other I would never get a 92 especially since in the end the 102 isnt that much more. Its much more sturdy and the runner design is light years better