TinyFC87

ok i have a 1990 TII with 3" exhasut and 3" downpipe and fluidyne radiator. aftermarket BOV. i thought these were supposed to run low 15 high 14 stock. well i had ten runs last night and the best i got was a 16.07@86.6. WTF i thought i should have got way faster then that. i had decent launches for the first time a the track and i shifted perfect everytime. had half a tank of gas and i weigh in about 280lbs any ideas whats wrong.

my car has about 45kms on mazda reman and i forgot to mention i have FCD.

Thanks
patrick

Whizbang

umm something isnt quite right...

TinyFC87

yah i know any ideas?

skb18215

I don't personally own a turbo, or know much about turbos but you might have your boost kicking in too high

Whizbang

well these are old cars. could be any number of sensors, bad fuel controlling, boost leak, combination of those.

TinyFC87

well i have installed an aftermarket boost gauge and it says i run 10psi. but i have no extra fuel going in do you think if i got a bigger pump then it would give it enough fuel to feel like 10psi?

TinyFC87

well i have installed an aftermarket boost gauge and it says i run 10psi. but i have no extra fuel going in do you think if i got a bigger pump then it would give it enough fuel to feel like 10psi?

TinyFC87

wow stupid double post.

Whizbang

you need a fuel controller like the APexi SAFCII. and some tuning. the pump would be good too but your going nowheres without any control of your fuel

TinyFC87

**** thats what i was trying to get. i know i need one of those and that is like my major problem right?

88t2romad

did you say a reman with 45 kilometers on it?????????

Because if you only have 45kms on it you should not be running it at the track. unless you mean 45000 kilometers

TinyFC87

yah my bad lol. 45,000

HHTurboVert

Dang, thats slow as hell. There is something seriously wrong with your car. You shouldn't need any type of fuel control to run 14's with your car. If I were you, I would create an ecu code reader as decribed on this site(search for it) to see what's up with your engine.

rrx777

the car will cut fuel to the rear rotor if boost is a couple psi over stock get a fuel cut defender that might help some

RETed

That traps are indication of the power potential.
It looks like you're not launching hard enough.

What RPM are you launching at?
Most FC turbos need to be launched at 4k to 5kRPM.

Do you have a 60-foot time for us?


-Ted

Impreza2RX7

No kidding, you should be running very low 14s. If you lose 100lbs, you'd crack a 15.97

TinyFC87

ok i got the walbro 255 installed and am now looking at some fuel upgrades. tell me if this is a good way to go here or what is the best way to get into the 14s.

get an adjustable fuel pressure regulator to increase my FP, then a boost controller to up my boost to fit the needs of the fuel. is that ok or how should i go about this?? would i need an Air/Fuel ratio gauge?? and a fuel pressure gauge??

here is my fastest time slip yet

R/T..........652
60'..........2.301
330........6.661
1/8........10.324
MPH.......67.02
1000.....13.456
1/4........16.079
MPH........86.06

i was launching between 4500-6000RPM with bald tires and getting decent launchs. that was the best out of 10 runs that night.

some advice from people would be really helpful. it kinda sucks having a turbo 7 and peopel think its fast when i got beat by a monte carlo LS, and a ******* CRX.

thanks alot guys
Patrick

therotaryrocket

check your timing? you should be way faster.

TinyFC87

how do i do that??

i was also reading that i should prolly check my injectors make sure they are running right and actually suppling the amount of fuel that they should be.

rx7legend

tinyfc87, there must be something wrong in your car, i have a 90 turboll and i ran a 14.9 and the only upgrades he has is 3'' downpipe, turbosmart bov and an intake. like you said check the injectors to see if theyre working properly.

TinyFC87

i am going to take alot of **** apart tomorow and find out whats going on.

tonight i was on my way to hooters and my car just suddenly started idling really rough, like so hard it shakes the car and the shifter was going crazy. my vac gauge was bouncing around between like 10-6 hwen at idle its normally at like 11. and it was hard to take off it kept wanting to die but imma check my injectors, plugs, vac lines, idle sensors and ****. i need to figure out whats wrong.

any ideas??

CoreyMH

I know you probaly dont want to do this but you should test the compression of the motor b/c 16 is pretty slow for a TII. Good luck.

TinyFC87

ok well i just checked the apex seals all are in great shape so i know its not blown. i checked the plugs they seem to be in great shape. next is to check the idle system shti and fuel injectors.

13bturbo2

bald tires? how do you expect to do decent times without good tires? your times seem really slow...try launching at 5500k and shift well, no power shifting you dont want to break your daily driver.

practice makes perfect.

TinyFC87

thats were i found the best spot to launch was 5500. as for the bald tires i know i need new ones but even from a roll im losing to like jettas and ****, like stock jettas.

well i just finished checking the BAC and its good, now going ot work on TPS and GOing to remove manifold nad check out the injectors.

any other suggestions?