4g63tHBmonster

Hey guys i know that this isnt the right place but i thought that someone around here has to know. I have a 1994 cx hatch with a 4g63t swap. im just wondering if the ecu are the same between the turbo and non turbo motor..? i need to know cause the motor i have now has low compression and im buying a new one. the motor in it now as i was told was a 4g63 with a turbo kit slapped on.. what do you guys think andy help would be superb! or if anyone knows the code on the motor that tells me if its a turbo/non

CHAMPwhteEK

you are the first person i know with that kind of swap

schardbody

turbo and non turbo ecu is differant, alot, the turbo ecu has to control boost solenoid and differant timing and such. if you are going with a factory boosted motor just use a turbo ecu.

StreetEG

are you the person who tried to sell this on ebay? or the person who bought it off ebay?

4g63tHBmonster

Im the purchaser and it was everything ive wanted. i have a jdm motor on the way. the motor doesn't even run that bad and the turbo pulls strong i just was the car to be reliable. thanks for the info keep it coming.

NesaiTuner

you have a jdm motor on the way? ... and what motor might that be? sorry i'm not tryin to flame i just think it's funny when people get on that JDM trip..nothing wrong with JDM i just think it's how you worded it. anyways back to the point. There's no physical difference in the Ecu It's just the way it's tuned. you can use an ECU that isn't tuned to handle a turbo set up although i would recommend getting it tuned. You can handle most of the tuning with a afc, and boost controler. I really would recommend getting it dyno tuned though. 4g63....as in eclipes GSX 4g63t? wtf! wow. Someone had alot of time to swap that into a hatch. ok well i hope you figure out your problem...there's alot of tuning envolved anytime you deal with Forced Induction. Good luck with it

Luserkid

Big difference between turbo and non turbo 4g63. Just because there titled the same doesnt mean they are (now that i think about it i dont think there titled the same). What motor do you have? I hope you have a 6 bolt, if not youll run into crank walk on the 7 bolts. And for ecus you want 91-94 (i believe thats the years) because they come with EProms that can take DSMLink or you could get EMS and run that (probably would be easier)

4g63tHBmonster

ok to answere both of your questions, the car was made by a guy at english racing. you can go to their website and see it.(www.englishracing.com) the engine in it right now is a 1992 eclipse 4g63 six bolt no crank walk( the 7 bolt wasn't made for the 4g63 untill 1995 so im safe). the engine i have on the way though is a 1992 eclipse gsx 4g63t this is why im asking. but ive just learned that this change will work, my stupidity, i forgot that the car has a MAF translator im hoping between that and a dyno i can get the car running right. thanks for all the help you guys, and yes it was a long swap, barely fits but well worth it! :-)

professor poon

why are you swapping a motor again for the exact same one you already have?

4g63tHBmonster

they're not exactly the same. the one i have now was the non turbo version and the one im getting is. the people who built this car made it for just a quarter mile dueler. they didn't make it for reliablility, so.. when they strapped a turbo to that motor it broke down the internals, this is why it has low compression in two cylinders. im buying the turbo version because i was the internals to be able to withstand the added power. i hope that sums it up

RonMexic07

4G63 differences :
Smaller Bore stock than 4G63T
Different Oil Pickup than 4G63T
No Oil Squirters in the 4G63NT
Threaded for Knock Sensor, but doesnt come with one stock

The biggest single difference performance related is the squirters, tapping them for the oil feed isnt difficult ( in my experience ) but the guide pin is. Throw 4 in there, and you are ready to go.

RonMexic07

the changes you'd ideally want are

6bolt 91 motor - there are subtle differences in the 90 block, id stay away from them
black top 94 cam angle sensor, this CAS is hall effect, rather than the lazy optical sensors
DSMlink in a 91-94 EEPROM ECU, i have a few for sale if you are interested.

civexturbo

MOst people that are making high HP numbers on those engine take ou the squirters. THe JDM engine is the CYCLONE or Red Top, it is pretty much the same as the US engine.

RonMexic07

Thats the first time ive ever heard that, dont know what purpose removing those squirters would do. They are there to help cool the pistons off, prevent hot spots in your combustion chamber, etc. I dont know how much benefit you would see oil pressure wise / windage wise. Ive put down 513 to the front wheels in my DSM, and Id personally have the squirters than not.

sohc'd upEJ8

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CHAMPwhteEK &raquo;</TD></TR><TR><TD CLASS="quote">you are the first person i know with that kind of swap</TD></TR></TABLE>

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Maximuscr31

The reason people lose the oil squirters are because they havea tendency to break off and clog oil passages. Also on a 2.3 stroker motor the 2.4 crank will touch and you ahve to try and bend them to get suffieicient clearanace. They are not neccessary.

Aslo 7bolts motors were introduced in june of 92. They are found in 92-94 eclipse, laser and talons, and then they are found in 95-99 eclipse/talon turbo models only (non turbos had the 420a engine from 95-99). The difference is the 92-94 models had a cam angle sensor only, and 95-99 had a crank angle sensor and a cam angle sensor. Some early 92 production model 1g's had a 6bolt engine, and even fewer was lucky enough to get a 6bolt engine with a 4bolt rear. 6bolt engines were only found in the 90-early 92 models

civexturbo

How many people take the squirters out of Honda engines and why? If you run forged pistons, you don't really need them. It is also an additional strain on parts to have oil spraying upwards while the piston is coming down.