I see that greddy has released their turbo kit finally, but they only have it for a 96 to 98 s14. I believe this is because the computer that comes with it utilizes the obd2 in the 96 up S14's. So what I want to know is can the kit be used on an obd1 in any configuration? would i have to get the JIM Wolf ECU and use that instead of the greddy unit? anyone else come across this problem??

 

i was thinking about the greddy kit untill i saw the same thing. I have a s13 and would also like to know if the greddy kit can be addapted to work with a 1992sx.

Is the obd2 just an upgraded model of the s13 computer ??

 

Well the difference is pretty significant. OBDII systems had more sensors and/or controls to monitor the enigne emissions. So if in fact the turbo kit is only sold for 96-98 240's, which would mean ODBII, odds are it won't work with the 95 and earlier 240's because they were ODBI.

 

yeah the OBDII computer is alot different then the OBDI computer, you can't simply change the OBDI comp. for an OBDII because they use a diferent wiring harness. The OBDII harness is much more complex and is split into two parts. Those of you with a 95 or older should be very happy because a OBDII to OBDI conversion is a common swap because the OBDI is a lot less restrictive. is a lot easier to work with and they dont have to plug in that little plug when you go pass emissions which means they cant read anything wrong with your ECU. The only down side is that you cant get the GReddy turbo kit....

 

Is that the only difference between the pre 95 Ka24de and the 96-98 ka's? I am thinking of swaping a lower milage 98 motor and upgrading to the greddy turbo kit. The 96-98 engines should mate right up with my 92 with no problem. I am almost positive they do, but i just want to make sure.

thanks

 

I understand the differences between OBD1 and OBDII. What I want to know is if you can use the entire setup EXCEPT for the computer and substitute it with a JWT programmed computer? I dont see why it wouldnt, just looking for a little feedback from others.
Thanks,
Joe

 

yes it will work. as i just recently said in another thread, i have lots of experience with helping people turbo hondas. my neighbor has a 1995 integra with a jdm 1998 type r motor (obd2 motor) using a obd 1 ecu. he also uses a greddy turbo kit on this ecu. The greddy kit is supposed to only work on 96 and newer cars and is for the gsr motor also. he runs a chipped b16 (civic si motor) ecu and the car dynoed over 250hp on 6 psi w/ 93 octane. it can be done. when you get in to turboed cars tuning is everything. tuning is very tedeous and will **** you off, but once you get it right the results are phenominal. as long as the manifold will bolt on to your 95 (which should be the same as the 96) it will work. might need some more customization, but it should be very easy to figure out.

 

This is an old post that I've dug up via search.

I'm in a similar situation. I have a 95 base, and am thinking about getting the Greddy Turbo. So what is the solution?

Get the JWT chip?

Upgrade to OBDII?

Spends tons on dyno time?

And as a kinda "Part 2", what parts for an NA will benefit a Turbo? I'm planning on building the suspension and drivetrain first, then moving to the engine. I don't want to buy anything that will end up on eBay or in my closet. So what engine bolt-ons will go both ways?

 

I have done a little research on this subjectan dhere is what I found.

At msrp the greddy turbo kit is an ok option for obd1 cars.

You will not be able to use the e-manage system supplied with the ,however jwt can reprogram your ecu or you can dyno tune and use another piggy back fuel computer and a boost controller (ie apexi hks greddy what ever floats your boat)

If you decide to go the piggy back method you almost might as well go ahead and build a up a custom turbo kit, cost will be about the same or look as xs engineerings kit (you will end up spending about a $1000 on the extra stuff just to make the greddy kit work).

The only thing I'm not sure about is if you can reprogram the e-manage that comes with the kit to make it work with the obd1 computer (this is what I'm goning to try to do).

I do recommend getting a wideband o2 meter to make sure you don't lean out your af ratio (aem uego seems to be a good choice).

 

guys i dont knowif this is true but i heard that the 240 sx has 8psi and you can only have up 270hp wiht the 8psi

 

it says at the Enjuku site that you'll need a Greddy Profec E01 to have the turbo kit work for OBDI 95 S14. about $5-600 i think? Greddy is playing with our heads on this one.

 

Greddy Kit comes with E-manage so it is just the problem of getting the e manage tuned correctly to a older motor. I assume everyone know to get the car dyno tuned regardless of how the emanage is dial in from Greddy. Even if the kit is going in a 96-98

If the Manifold work for pre 96 motors then the kit should work. I'm thinking maybe the downpipe have more connections for O2 sensors. those you can always find a way to plug it up.

Injectors maybe of different resistence. That can also be solve with different injectors. offset the cost by selling the included one.