Stock 88T2 Fuel Pressure
05-16-06, 01:10 PM
#2
HAILERS
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Around 37-39psi with just the key to ON and approx 28-32 at idle. Yours seems normal.
Leave that gauge on the car and go for a drive. When you see those lean numbers you mentioned in your other post, take a quick look at the fuel pressure. In my opinion, if your not boosting and driving along, if you see anything b/t 35 and 40psi on the gauge, and your car is bucking.........it ain't the fuel pressure at all, but either some large air leak/too small injectors/something wrong with the apex seals.
A small vaccum hose leaking might well cause a ratty idle and take a 11:1afr to idle the engine, as you describe in your other post. But if it were a small hose off, then when you start driving in the higher rpms, it won't hardly be noticable and the afr won't be ANYTING like the 16:1 or 18:1 you described in your other post. Heck, I think you even said 20:1. That isn't some small vacuum hose off. It's a large air leak or the injector plugs on wrong, or too small of injectors. You didn't say anything about a ported engine which I know even less about.
Leave that gauge on the car and go for a drive. When you see those lean numbers you mentioned in your other post, take a quick look at the fuel pressure. In my opinion, if your not boosting and driving along, if you see anything b/t 35 and 40psi on the gauge, and your car is bucking.........it ain't the fuel pressure at all, but either some large air leak/too small injectors/something wrong with the apex seals.
A small vaccum hose leaking might well cause a ratty idle and take a 11:1afr to idle the engine, as you describe in your other post. But if it were a small hose off, then when you start driving in the higher rpms, it won't hardly be noticable and the afr won't be ANYTING like the 16:1 or 18:1 you described in your other post. Heck, I think you even said 20:1. That isn't some small vacuum hose off. It's a large air leak or the injector plugs on wrong, or too small of injectors. You didn't say anything about a ported engine which I know even less about.
05-16-06, 01:17 PM
#3
I was shooting numbers out. My idle is high, like 36-38psi. No load, 40psi. I will adjust my FPR.
The engine was just rebuilt by Kevin Landers, I am sure the seals are fine.
I tore the top end down and put it back together. No change.
I do have a ported engine, with a hybrid turbo, and stock injectors.
My injectors look ok, but will double check them.
The engine was just rebuilt by Kevin Landers, I am sure the seals are fine.
I tore the top end down and put it back together. No change.
I do have a ported engine, with a hybrid turbo, and stock injectors.
My injectors look ok, but will double check them.
05-16-06, 02:00 PM
#4
HAILERS
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It really does not look like a fuel pressure problem to me. Certainly not a low pressure problem .
Maybe take a look and make sure the injector plugs are going where they should and if that's good, swap the injectors from secondary to primary (if they are all 550's)
Maybe take a look and make sure the injector plugs are going where they should and if that's good, swap the injectors from secondary to primary (if they are all 550's)
Last edited by HAILERS; 05-16-06 at 02:03 PM.
05-16-06, 03:04 PM
#5
Originally Posted by HAILERS
It really does not look like a fuel pressure problem to me. Certainly not a low pressure problem .
Maybe take a look and make sure the injector plugs are going where they should and if that's good, swap the injectors from secondary to primary (if they are all 550's)
Maybe take a look and make sure the injector plugs are going where they should and if that's good, swap the injectors from secondary to primary (if they are all 550's)
I agree. I will check that tonight.
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