Hello,

I am having a custom intake manifold made up for my FE3. I will be running MS and it will be turbo'd. I am curious what people choose to run as a TB when going custom.

I have 4 diff TB's currently to choose from but looking for ideas.

Info:
Wanting to run 280+Whp
IC piping is 2.5"
Turbo is T3/4 50 Trim

Current TB's are:
90 1.6
05 MSM 1.8
90 MX6 2.2T (F2T) TB
95? Q45 90MM TB (3.5")

Thanks,

Brandon

 

Out of those, I guess the MSM.

The F2T has two butterflies and is annoying. Q45 is probably a bit big.

Why not a Mustang 70mm or something? Custom manifold means you can use a nice throttle body.

 

Yes that is what I am wondering, what are the "nice" TB's.

 

what about Mustang TB's ?

 

Maybe some throttle body in the 65mm range that doesnt have throttle shaft breakage issues.

 

because most aren't designed to be used with a throttle cable and there's no preload in the clockspring and you're left with an incredible sensesitve limp dick throttle that can stick open if you don't add addtional pre-load to it?

 

why not go with a honda style throttle body. They are relatively cheap can be had in sizes up to around 90mm and you can have a IAC on the bottom of the throttle body if you have a way to control it. I personally have an ebay 90mm I would not suggest using one of these. lol

 

Hrm i wasn't aware.... I know of at least one MX6 guy that used an aftermarket Trickflow Mustang TB without issues, but never really paid attention to the linkage.

Something i should research it seems... i was planning on using one on my 93.

 

what size is the MSM TB?

an ITR TB would be a good one.


You also need to factor in the ease of adding a TPS and Idle Valve to the mix.

 

If only there was a 2.5" TB which is PnP with miata idle valves and TPS

 

hey look at that.

I'd go for the 99+ verison so your idle valve doesn't need it's own air source off the charge pipes to make for easier installation.

 

Which TB are you referring to?

 

Are 99+ and an 05 msm TB the same?

 

My whole post was in fact a link to the exact TB I was referring to. That's why it was underlined and clickable and all

 

Do this @FE3tmx5

Cant wait to finish it so you can get it running again and bring it down for me to hear.

 

a picture comparing the two was posted recently:

 

Would any issues arrise if I didn't run coolant lines to the TB?

Thanks for the pic.

 

Your throttle body could freeze if you decide to drive in Northern Canada in -40* weather.