I just recently built and bridged my T2 with S4 n/a rotors. I have had **** for power and have looked for leaks and problems as to why. It has 600 miles on it right now and changed the oil at 500. I was spraying starter fluid down off under the TIM where the harness and injectors are with the car on and at one point it reved the engine hard when doing it. I also believe my intake gasket might be shot along with whatever it is making this car so damn slow. I mean my friends CRX beat my bridgeported, t2, n/a rotors, running 5 psi.... I when wtf, lol. The motor was showing compression and smokes a SMALL bit when starting up when it starts it stops. Someone said it might be my injectors rings and it sounds like not enough fuel might be the issue but the gas mileage still sucks right now. The bridge port I done was small with a big street port secondary so nothing wrong around in that area. Any help would be great....

 

If it were your o-rings gas would spill everywhere.

 

If it revved your engine hard, you have a large vacuum leak. I would definitely check the intake to determine where (gasket, etc). It would also be kinder to your motor and safer to use carb cleaner rather than starting fluid. If you use the plastic tube you can be pretty precise about where you are directing it.

 

are you running any type of engine management system??

please tell me you are...

 

I took off my upper intake and somehow the intake gasket was blown and they was a emissions hole not plugged up, and 2 o rings were very poor condition.

It's a half bridge so standalone isn't a must, but it helps.

I ordered the parts yesterday and will be going to get them in a few.

Hopefully this solves my porblems..... :/

 

good luck man

 

if you haven't replaced your injector seals I would highly recommend it while you are there. I was chasing a vacuum leak for a while that I finally traced to the injector seals. when I pulled them out they were hard as a rock. F.C.3s only if it is the o0ring in the fuel rail, the seals in the intake just leak vacuum.

 

Problem the 1st: You bridgeported the primary ports only. A half bridge gets applied to the secondary ports.

Problem the 2nd: A standalone EMS system is required for ANY kind of bridgeport.

Problem the 3rd: Because of problem the 2nd, the car is probably running crazy lean under any kind of load.

 

I have no idea what is going on. I might just take the whole motor apart again and use one of my extra street port housings.

You can bridge primary on 4port motors with no problem and keep alittle low end.

I'm starting to lean toward a harness issue, but no idea.

 

It's very frustrating when someone does not listen to advice given.

Have you verified A/F ratios at all? If you are on the stock ECU, the car is probably hitting 16:1 under light boost. Bridgeports take a LOT of fuel.

You can bridge the primary port for sure, but the runners are MUCH smaller then the secondary ports so it's hard to say if they are going to flow enough to make the bridge worthwhile. Again, to do a proper half bridge it is the secondary ports that receive the eyebrow.

 

is it very safe to be racing a untuned motor with only 600 miles on it?? i didnt even think u could put boost into one with that few of miles

 

Don't take what I said the wrong way Aaron, your advice is ALWAYS welcomed to me and I have wrote down in my mind what you have said about it running lean and the EMS, but since I am basically homeless right now it's hard to come up with cash to buy an EMS when I have to save up for a place to live, lol.

The thing is the motor was running with the same setup and same ports fine last year, but the stock turbo gave out after having something fly in the fins and a apex seal broke in the process. It has now been rebuilt and feels ALOT slower than it was. Before I could beat decent cars like modded turbo dsm's, wrx's, and such. Now with the same setup I can't even beat a stock geo... That's why I say it's not because i'm not running a stand alone, because I have used the same setup on the same engine with alot better results, that's all I am getting at.


And I have not "raced" in the car seeing has 4k-5k in a bridgeport is like 2k in a stock ported car. I have not boosted over 3psi in the car and currently run around 0 positive psi only. My friend in his crx I told him to just go to 4th on the highway and hit the gas and I did the same... I stopped at 5k.

The miles right now are at 823, no problems other than the fact that it's loud and slow.