a few issues after putting a 95' KA24DE in my 91 fastback...

[E Dogg]

I just finished putting a 95 KA34de into my 91 hatch. I have a hotshot header, test pipe, and stock exhaust after the test pipe and a CAI. Also all emmisions and unnesscary systems have been removed and blocked off where applicable(EGR, AIV, A/C. P/S, ABS, butterflies etc). A friend and i just set the timing and the car seems to be more sluggish with the newer/lower milage engine with mods than stock. Espically higher up in the power band, I realize the KA isnt really rev happy, but my 0-60 is like 15-16 sec so i know somthings not going right.

Any ideas guys??

[TrunkMonkey]

hot shot headertest pipestock exhaust

one of these things does not belong here.

-demetrius

[E Dogg]

i was thinking that or timing, my car has been a ****** to time since the 95 motor came. Do you know of a realitvely quiet exhaust setup, i dont want hassled b/c my loud exhaust. mostly b/c im not liscenced till feb and i have to drive sometimes

[Structure240sx]

seriously 15-16 sec 0-60? that should be ur quater mile time at like 85+mph, big difference. why has it been so hard to time? did u do anything to the timing chain? maybe its off a link

[E Dogg]

i dont know about the work done to this motor before i have owned it, i have checked the timing with a light and have tried settings from +5 to -15. in testing those settings i was timing my 0-60 . i drove it alot today and it seems a little better but i dont think im near single digit 0-60 times

[Structure240sx]

stock timing is 20 degrees BTDC. if ur retarded to 15 u are goin to hurt ur times very much. mine is at 16 but thats cuz im at 8psi right now. the fsm says timing should be +- 2 degrees from 20. so for beingnormally aspirated turn it up to 22 to get some extra power

[E Dogg]

loks lik we were overzealous in removine emissions devices by removing the iaa unit, i do the procedure of removing tps and then timing to 20-22 deg then i shut off and reconnect tps timing goes back to 5-10. looks like i need an iaa unit soon:(

[Structure240sx]

what about settin it with the tps connected will that do anything? i timed my car once beofre turbo and once after and forget which time i timed it with the tps still connected. its stayed the same turbo so far. and before turbo it must have too since it made my idle a lot better.

r u talkin about an idle air controller unit? i have a spare intake manifold with everything on it i believe. the IAC was capped but that can be removed

[E Dogg]

I set the timing to about 22 and my 0-60 is close 10 sec now(still slow right?), but im idling areound 1000 now and i need to get that fixed. I have a block off plate covering the area where that unit bolts to the intake. If you have an extra one I would be intrested in buying it. It's circled in this pic: http://www.geocities.com/MotorCity/Spee ... 67/iaa.jpg

[Structure240sx]

ill pull it off tomorrow for u jsut email me at [email protected] tomorrow morning so i remember to do it

[E Dogg]

ive since learned i may be able my idle by tuning my throttle body without that unit, but i think i may still get it from youthanks

on a side note- do i need to swap cams b/c my ecu is programed for the 91 cams also?

[nismofan14]

Well if your car is running an ecu for different cams that might be a problem. Why would you have the 95 ecu programmed for cams that you didnt install?

[E Dogg]

i used the ecu and harness from the 91 engine, which has slightly diffrent cams

i think alot of the problem lies in tweaking the timing and tuning it still.

[MikeMurphy]

Should be easy to source a 95 OBDI ecu and test it out.

[E Dogg]

but i have a 91 harness and ecu...

[Aries]

is the car an auto or a 5 speed?if it is a 5 speed, I have the ECU you need to correct your problems.if it is an auto, well you will need the ECU from an auto 95.The 91 ECU WILL NOT TIME CORRECTLY on a 95 motor.The sensors within the motor have a different resistance rating and use a slightly different voltage.

[E Dogg]

which sensors? i swapped the intake and most things form my 91 engine onto this block....

[nismofan14]

Did you change distributors? Crank position sensor if you swapped the transmission as well. I believe the coolant temp sensor is different but I may be wrong. The 95 cams are different than 91 so I would recommend swapping the cams out.

[E Dogg]

i got the 91 dist and crank position sensor, i dont know bout coolant sensor, i havent got my e-fan goin yet and it wont get hot....

[nismofan14]

Do you have a wideband o2 sensor? A/F gauge or something to tell if you are running rich?

[E Dogg]

negtive, i dont have dollars for wideband, how much is just a a/f gauge?

[nismofan14]

Around $50 if its autometer. They are not real accurate but enough to give you an idea whether it running rich or not. Since you have all the sensors changed I can only think that it would be the cams or a sensor not working properly. Sucks though sinc you will have to check them with a multimeter since your ecu will be spitting out all kinds of codes since you removed all the emissions crap.

[E Dogg]

i know, im not even getting a check engine light ether. Well i wish it was tuned better b/c i just lost a race to a crown vic and i cant drive for a while:(