Sammytom

Im gutting my 87 t2 tonight of all that vac crap! Ive read alot about it and have been shearching but a few questions remain. First in a diagram that one of you guys drew he had the presure regulator hooked up to fourth nipple on the back of the throttlebody. In this picture, this thing was hooked up there and i was wondering what it is? what does it do? and can I get gid of it. Secound the two hoses coming out of the oil pipe, I can just vent those into a can or somthing. Also the line that goes back to the intake can just be capped? and finaly the swin scroll thingy, can i just trace all the old lines down and re hook them. Im sorry if this is long. but i need some help. any sug. welcome

Scott 89t2

cap it off. and remove the bottle in the pass. firewall corner that is filled with coolant.

it's a cold start thing. mazda said it should be removed. doesn't work.

NZConvertible

The FPR gets manifold pressure from the angled nipple on the inside on the LIM. That's where you should connect it back to.
It's the sub-zero starting assist system. Ditch it like Scott said.
They are there to vent vapours from the sump. Just run two lines from them down under the car and zip-tie them to something. Leave them open-vented.
The twin-scroll system needs the solenoid valve and check valve as per the stock set-up. You can remove the solenoid from the rack and mount is somewhere else, then run the vac lines as per the schematic on page 4B-53 of the FSM (make sure the check valve points the right way) and extend the solenoid's wires to its new location.

jimmyv13

this may help:

https://www.rx7club.com/forum/showth...hreadid=102493

Sammytom

Alright I got it all together and it wont run. i can keep it running by pressing the gas, but it wont rev past 4 grand. I followed this guys diagram to the T. But there are two differences. in his diagram the top nipple on the back of the throttlebody goes to what? mine is conected onto something that is mounted on the throttlebody. and second i keeped my twinscroll solenoid. remember my car is an 87t2 Im dont know if this diagram is for my car. The diagram im refering to is here
https://www.rx7club.com/forum/showth...hreadid=216587