eniac

What would be the best/most affordable option? It needs to be able to withstand massive amounts of boost unlike the stock one and either have a compatible TPS or be able to fit the stock on it somehow. Mounting is not an issue since I plan to cut the intake and weld on a custom plate.

95ONE

1986 928.. same tps, 3" hole. need a new plate.

gt37vgt

heaps of BMW ones heaps of merc ones

eniac

Thanks, I was thinking something new/aftermarket but I'll see if I can dig up a 928 or BMW TB and pressure test them. I haven't found a 951 TB yet that doesn't start to leak around 22-25psi. Starts with a slow leak then gets worse over time.

DDP

Dave does an aftermarket throttle body.

http://customengineeredperformance.com/services.html

RolexNJ

Why don't you contact some of our approved Rennlist Sponsors and ask them? I know of 3 companies that make them and that are active on here. Maybe they will chime in.

spoolin51

CEP TB is a real nice piece

DDP

I thought CEP was the only company that actually made them from scratch. Aren't the rest just BMW or 928 throttle bodies modified to fit? Which three companies? I can only think of one, SFR....on one car (GeorgeD).

nick_968

I havent seen any that do not require a new or modified manifold.....

Chris White

From scratch - like from a billet of aluminum? I don't see the point of that, but I guess if people want to pay for it then it will be done!

I have made some larger throttle bodies by machining other ones to fit - but I don't see the point in having a throttle body any larger than the intercooler pipes. There are better places to spend money!

Now individual barrel valve throttles...that sounds more interesting...

95ONE

I was going to do individual Barrel.. But the size was pretty retarded. THe lack of a butterfly is nice, but. So I'm having individual ones made from my CNC guy.. He's pretty slow to respond lately.. He has the material.. But I don't think I'm going to see them until next year.

Tom M'Guinn

The 928 TB is also much larger than the opening in the stock intake manifold. I am using the 928 TB now, but have the SFR manifold and pipes to make it worthwhile.

There is also an Edelbrock sport compact TB that can be made to work. See Pete95zhn's old car (RIP) for example.

V2Rocket

whats the inner diameter of a 951 tb?

95ONE

Somewhere between small and very small... not really, its.. 2.185" per my dial caliper.

V2Rocket

sounds like the same size as an NA