Miata turbo in 7

[twnpipe]

Sharing some progress on changing out from a stock 1.6 Miata to a turbo 2002 1.8 Miata in my locost. The exhaust manifold to turbo I made in stainless, the turbo is a Garrett 2871, with an aftermarket Honda intake mated to to Miata intake. I decided to use a Subaru type intercooler setup for the short runs and keeping my radiator clear and I liked how it worked on my sons WRX. Also using LS2 coils for an individual spark controlled by an AEM EMS-4. The wires will be all tucked away once the car is running. Currently having some challenges with the computer reading my sensor inputs or more likely me following directions

[twnpipe]

one of the many challenges was mating sensors to metric threads, sometimes it was easier to weld on pipe thread bung.

[Hank]

A blow-off valve (BOV) is necessary to protect the throttle body blade from bending by keeping compressed air from hitting it when it closes between shifts. It doesn't work that well if you put the BOV right next to the compressor outlet. It is ideal to have the BOV the furthest away from the turbo to exhaust the built up pressure in the intake piping pre-throttle body. Although it looks difficult in your situation I would recommend moving the BOV a few inches from the throttle body.

[MHKflyer52]

Looks good Ingmar. It has come a long way.

 

Hank,

Looks like the throttle body is on the passenger side of the engine (1.8ltr Miata) (Miata owners know these things....LOL....) and the photo of the blow-off valve (BOV) is on the drivers side of the engine which give it lots of room between the TB and the BOV which shuold not be for the best operation.

 

Should have said Hank is correct as I do not know what I was thinking or typing just trying to give Hank greef about Miata's.

Edited September 7, 2011 by MHKflyer52
Corrected my GOOF

[Hank]

Martin,

 

Please read my post again. You want the BOV as close to the throttle body as possible.

 

Here are a few turbo Miata engine bay examples.

http://image.turbomagazine.com/f/30661155/turp_0109_02_z+1990_mazda_miata_turbo+engine_bay.jpg

 

http://image.modified.com/f/16538123+w750+st0/modp_0907_01+1991_mazda_miata_turbo+engine_bay.jpg

[MHKflyer52]

Hank,

 

Your correct. I miss read and miss understood what you were saying and I do agree.

I missread the part where you said it dosn't work that well if it is next to the compressor and in my hast to give you greef about Miata's I miss spoke.

Now the question comes to mind you must want a Miata as you have some good pictures of turbo setups.....Big Smile....

[twnpipe]

Thanks for the tip on the BOV. I will be starting out with low boost which will reduce the chance of damage. I have room on the 3" 90 just short of the intake, and can include that in my next order from Columbia River for mandrel bend alum.

A local shop Trackspeed Engineering has his Miata at 360 hp on E85 for the track, my ambitions are much less but looking forward to drive it on the street soon.

[Hank]

With the intercooler piping so short by the throttle body you could probably get away with putting the BOV on the passenger side of the intercooler (like a Subaru WRX). Just remove the intercooler, drill and tap the end tank, and mount the BOV.