I brought an 87 rx7 gxl with a 88 t2 motor and 91ts trans and 91 ts rear end and turbo brakes and a bunch of work done to it
I love the car so far but it idles a little rough ( could that be because of the vacuum lines removed??)
and my boost is at 6psi i read some were it was 8psi stock?? is that true?
And how many of those vacuum lines do i need and does everything need pluging in?
Where can i get a temp sender unit that will fit my car everywere i go they get me one thats too small

 

here is some more pics
Is the blow off valve ment to be open like that?
and the hose with a bolt shoved in it i found and normaly it has 6psi of boost but when you remove the bolt it has 11psi..... is this a common upgrade/rig?? should the pipe go somewhere?
Thanks
Chris

 

the previous owner did it all wrong.

not totally wrong but, he probably doesn't want to deal with it anymore (to get it run right 100%) thats why he sold it to you.

 

Thanks man but i would like it to be 100% thats why im asking......Any info on how to fix would be great

 

Look up the FSM, in the FAQ and find the vac-line diagram...

And yes, the BOV is open when the car's not running. That's Y if you look at your boost gauge, it'll show between 0 and -5mmHg... Only because of the pressure difference between the outside (14.7psi) and the valve mechanism of the BOV (+/- 14.7-14.2).

Vac leak, in relevance to said BOV, is the easiest thing to identify... At idle the engine 'hunts' really awfully. What happens is the engine builds manifold vac pressure, which is released, via the partially open BOV, which DROPS the manifold pressure, which causes the tach to jump, closing the BOV, which....

You get the picture, right?

No stress.

 

Its not hunting it almost sounds like a misfire at idle but fine when you rev the engine

 

That's a good thing... That means the leak's not significant enough to cause a major loss of manifold vacuum at idle.

It is, however, enough to cause loss of pressure to the fuel system.

What's your fuel-pressure and manifold vac read, at idle?

Just outta curiosity, does it idle from (how can I describe this?): "brap-brap-brap-brap-brapbrapbrapbrapbrap-brap-brap-brap-brap (consistent to what sounds like double-time)?

 

i will have to start it up again and lissen more carefully its about to be painted in a few minets so i cant start it right now ( i will post pics of it painted soon) but i will have to get a fuel pressure gauge to check for you and same for the vac gauge... but there are a bunch of vacuum lines off.... but it idles fine just sounds like it missfires for a second. it also has a microteck lt10 and an ignition enhancer if that would change anything

 

.

 

I lissened to the engine it just sounds like it missfires for a second at idle and its a little hard to start..... Does anyone know of where i can buy a tubo rebuld kit? its the stock turbo

 

BNR does rebuilds. http://bnrsupercars.com/2ndGen.htm

If you want to do a thorough turbo rebuild yourself you'd need special balancing equipment, which I doubt is worth the cost for only ever doing a handful of rebuilds with it.

 

alright thanks man i didnt know that well in that case do you know what turbo it came out with stock is? and do you know of anywere that sells them cheep(well cheaper.....) i wouldnt mind going with a better turbo is there any you recommend? and what the bennifits of going with a better turbo besides less lag and more boost?