GSR-C5

will a P72 be ok to running a 98' B18C5 with non-lsd GSR tranny or is there a different ECU i should be running?

compuvision02

It should run, but will not run great. I suggest finding a P73 ECU or just getting your P72 chipped.

GSR-C5

ok, thanks. what would i need to run a p73 ecu, would have to mod the wire harness at all. what is the real different between the p72 and the p73?

should i just sell the p72 and go with a hondata or aem?

builthatch

what year gsr is this, what obd are the ecu(s)?

you say b18c5 from 1998, so it's US market- we got that much...

without knowing more info about what you have, i can tell you the difference between the two ecu's is the p72 controls IAB's for that funky looking gsr manifold and the maps on the p73 are setup for an engine that is equipped with different cams, head, intake manifold, exhaust, compression blah blah blah...

GSR-C5

sorry about that.

about the car it a 95' GSR shell. the motor is a 98 B18C5 with OBD1 conversation, i'm running a GSR tranny, don't know what year. i bought the car with the swap. rebuilding the motor on it now, crack a conn rod bearing on #1 cylinder. do you think it was casue by running the P72 ECU?
is that enough info for you?

builthatch

hmm...you cracked one? was it worn/discolored or just broken? i'd imagine other things would happen before detonation could cause that much hammering that far down but whew, i dunno.

typically that stuff happens from dirty oil (broken parts contaminate oil) or oil starvation.

sauceja

How is that OBD1 Conversation going lol.

Get a chipped P28 or other similiar ecu to run an obd1 vehicle. Sell your P72 so someone can run IAB's on like an H22.

You could chip your P72 and disable IAB's on it as well.

builthatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sauceja &raquo;</TD></TR><TR><TD CLASS="quote">How is that OBD1 Conversation going lol.
</TD></TR></TABLE> hey, i resisted, why couldn't you?! haha

GSR-C5

my bad on the shity spelling. lol

but yeah i think it was my oil pump that's bad. the conn rod was broken/cracked. i found alot **** in the block and oil pan.

thanks for the advices on the ecu. i'm going to sell the p72.

what ecu should i run?
i have plans to boost it be next spring.

builthatch

an obd1 p72 is fine since it is compatible with hondata/neptune/etc...

GSR-C5

builthatch ,kool thanks alot for the great info you have given.

sauceja i like you build. i'm in the starting point of your prjoect. but i have a problem try to find out what conn rod and main bearings i have and need to buy .any tips on the issue?

so i should keep teh p72 and get it TUNE or chip then tune. sorry for all the noob questions. but i try to seach and no one is really running a b18c5 w/gsr(non-lsd) tranny in a GSR...

builthatch

well...your swap is not that different than those who have a gsr engine with a skunk intake manifold.

the best bet to see about technical info re: internals is to get a Helms manual for Acura Integra, say...1997 or 98, since it'll have LS, ITR and GSR included in the manual. This will have most of the information you could ever want for an obd2 integra. for general bearing info, you could refer to the redpepper helms hosted on their site-

http://www.redpepperracing.com/technical/main.php

they have a 94 teg manual on there. in the engine block section, it'll sell you how to tell what bearings you have.

sauceja

Bearings:

Click link and look at my links on the 3rd post down on 2nd page under gotta love earl.

https://honda-tech.com/zero...age=2

GSR-C5

kool. thanks guy.

i should be able to order all of my parts this weekend and have the block and head in the shop by next week.