Ok so I've been around here for a while and asked a lot of questions. I have come to the conclusion that it will be more cost effective to just drop a 2.3 HO into my 01 z24 instead of doing the oil pump conversion and 086 head. My question is, besides the cam sensor, the power steering pump, and the need for HPtuners are all the sensors there for my obd2...will it go in easy? What will I need to change?
I don't know about you but I think the 2.3 oil pump conversion in the 2.4 would be easier and cheaper than dropping in a 2.3HO and converting everything to OBD1. That is alot of work if you ask me. If you want a 2.3HO find a 95 Cavalier or Sunfire GT, hell even a Beretta GTZ would be nice.
In the planning stage for an all American TRD Cavalier.
What is your plan for the car? So far you have mentioned 2.3 HO and a 2.4 with 2.3 oiling system. Why? Is the motor blown, are you building it if so for what?
FU Tuning
Z24HO Thanks for the advice but I plan on getting a different motor to build whether I go 2.3 or 2.4. This will be a paycheck to paycheck build so Im gonna keep the current motor in the car until the last minute. So Id have to get another motor to rebuild either way. I am curious if you can adapt the 2.3 to obd2 though.
John my plan is to build the motor up a little. I plan on running some boost but probably 6-8psi at the most nothing drastic. My current motor isnt blown but if i keep the 2.4 i do want to do the oil pump conversion and 086 head along with the HO cams so Ill be getting a junkyard motor to rebuild either way. This isnt my daily driver but i am planning on keeping it streetable. My issue is with the 2.3 oil pump swap and the custom pistons needed for the 086 to still run boost, if possible to adapt to obd2, i think the 2.3 seems like it might not cost as much because it already has the oil pump and head. But is it possible to adapt the 2.3 Ho to the obd2 with out major modification?
95 cavalier z24's have a 2.3 LO.
Hey no problem on the info just here trying to help. On the note of a 2.3 converted into OBDII I don't know if that is possible. If it is im sure there is alot of work and money to change all the sensors to the 2.4 version. So I can't help you there I'm sure one of these other guys can. But it does not sound impossible to me. Another thing about the 2.3 is it is an old motor there is very little after market for the engine atm. But for some reason I have a feeling that the 2.3 will become a big eingine to play with in the future because so many people are interested in it. 2.4 is starting to lose the war against the new Ecotec so you might even look at finding a junk yard eco engine to build up. The market is starting to explode with these engines because GM is putting it into so many cars. And with the 2.4 Eco engine that is most certainly a possiblility in the near future even though I think it is only in RWD configuration atm. My friend with enough money and patients the sky is the limit with our engines. I personally love them because it is hard to get 300whp out of them. Not like honda, toyota where you spend 5k and are pushing 700hp. That is to easy and to many ppl are doing it. I think Jbody owners are original and it is so much fun to blow away a mustang or camaro at the track and have them eatting their own feet
In the planning stage for an all American TRD Cavalier.
The 2.3 can run on OBDII no problem. No engine are OBDI or OBDII, only the Ecm is. You can run an Eco on OBDI.
Gilles
2.3 Ho
I thought about the eco...my father has a cavy with an eco and it seems peppier at low rpms then the ld9 but the id have to change the trans too if im not mistaken plus mess with wiring i think. I also hear the the 2.3s pull harder even the LO then the 2.4 do. For some reason that 2.3 has my eye and i thought about a hybrid guess it all depends on the big bad dollar lol...or in my dreams 2.6 stroker but thats not in the game plan at this point in time.
Grilles is it pretty much plug n play to put the 2.3 in? Id imagine running an eco on a obd1 would involve lots of wiring.
Finally yes damn a honda and its easy power....it feels good to be the underdog and trying to do somthin about it lol.
Syntar wrote:This will be a paycheck to paycheck build
This is not a good idea at all.. I did it with my motor build and ended up skimping on some extremely important things at the machine shop.... Chamfering the oil passages, washing and baking the block... and a couple other things i suggest saving up the money and doing it that way... otherwise listen to what everyone else has to say.. Me personally i would build a ld9 to the wall if you car already has it as you will have less problems in the future... ive come to the conclusion if it wasnt meant to be there it WILL have problems.. problems that can cost lots of money to fix, and now that quite a few ppl have done the oil pump conversion vs. the 086 head i would go that route as there is almost a set build guide for it and requires less custom parts.
Thats just my opinion and you may find a good way to do it.
Yeha i hear that Ill save to make sure that all the proper machining gets done...but that might happen before or after i buy the pistons, rods, ghaskets etc. Its more the parts that require the paycheck to paycheck thing. I had a 350 machined for my truck and to get every thing done, from boring, line honing, repairing a sleeve, magnafluxing, washing and baking, getting the block deck milled from the sleeve repair, etc cost me about $400 so id imagine a four cylinder would be slightly less. My machine guy is good, he wont let me miss anything. None the less good advice.
id say have pistons and rods in hand as you will need to have them balanced whichever way you go.
oOo thanks I'll make sure to put that on my list of stuff before the machine shop.
Syntar wrote: I had a 350 machined for my truck and to get every thing done, from boring, line honing, repairing a sleeve, magnafluxing, washing and baking, getting the block deck milled from the sleeve repair, etc cost me about $400 so id imagine a four cylinder would be slightly less.
Mine didn't. Although mine also included the bearings and balance, so it is hard to tell. If 6-8 psi is all you want, I question what you are really looking for. With the right setup, you are looking at upwards of 300whp.
If you have a decent amount of money already invested in the 2.4, then build the hell out of it. If not, I would swap over to the 2.3 H.O.
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"Youth in Asia"...I don't see anything wrong with that.
Yeh I guess every machine shop is different and every enigne is too. I havnt done anything to my motor as of yet, just an intake and less restrictive muffler on my car. Think im gonna go HO...If I go turbo with intercooler i might go higher then 8psi...but if i go supercharged 6-8 will be fine(think im eventually taking this route) 300hp would be great, that would thrill me.
Syntar wrote:Yeh I guess every machine shop is different and every enigne is too. I havnt done anything to my motor as of yet, just an intake and less restrictive muffler on my car. Think im gonna go HO...If I go turbo with intercooler i might go higher then 8psi...but if i go supercharged 6-8 will be fine(think im eventually taking this route) 300hp would be great, that would thrill me.
Saying i do alot of machining myself down at a buddies shop it doesnt cost me much more than a case of beer, but when i build an LD9 for someone they can expect to spend about 1000 for machining the block alone, the rotating assy is easily another 1000-1500 so basically to get a racing shortblock with all the goodies you can expect to spend 2000-4000 for the short block alone depending on the options you want. now i know you're saying "HOLY HELL THATS EXPENSIVE" i'll tell ya what, thats probably the cheaper end of the engines i build.
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** Flat Broke Racing Inc.**
6-8 psi on a supercharger is different than 6-8 on a turbo. I was refering to the turbo. But with enough tuning, it is possible that you might see close to 300 with the supercharger
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"Youth in Asia"...I don't see anything wrong with that.
Yeha thats what ive been told, that turbos can make more power but all i know right now is i want boost eventually. Right now im more concerned with the engine build (keeping in mind that boost is in the future) decisions decisions
all kinds of mis-information in this thread. I see these very often now, which is why I wanna make that Quad/TC Faq.
like Gilles said the engine is in no way tied to ODB1 or ODB2. You have to look at the types of sensors, the power curve, the displacement, and several other things. Now this becomes much easier when you can adjust these in the computer. Enter HPTuners. Now the diplacement, injector constants, so on and so forth become non-issues. Now you just need to look at the sensors and the more physical things. The sensors on the HO are damn near IDENTICAL to the TC. Go look. I was shocked. Actually answer me this.. how many sensors are on your engine itself? not on the TB. it's 2. yes 2 and those 2 are not only in the same place and have the same plug, but for pre-00 they are the exact same. So, what have we learned? Well swapping in an HO is not much more work then swapping in the Intake Manifold we have been doing for so long.
There is one hitch (which we find in the Eco swap as well) and thats Cam position. BUT!!!! MSD is kind enough to make a nice little box for us. Now this is NOT manditory. you can run the HO in batch with the trouble codes turned off and it will run like it would have in the original car, but if you wanna run sequential fire you will need to get some kind of cam sync signal. Which will require the MSD Box.
http://www.msdignition.com/sci_16.htm
2.4 Eco's come in Cobalts too. Also, parts are available for 2.3's but you just have to look. GM still carries many of them. There are a bunch of RACE parts available to the Quad4, but they can be rare. With motor being built outside the car you can take your time. No worries there, just don't skimp. IMO the 2.3 HO should have been put into a 3rd Gen Z24 from GM with a NVG and Torsen dif (close to 13's N/A). That would have been a hot hot car. Would have attracted many sport compact people to the NEW Cav at the time. but compact and fast wasn't really on Chevy's list of things to do in 95
Sven you totally quarterloafed your computer..
Thanks thats the info i was looking for...the link to the cam sync. HO here I come!
remember man, the msd cam sync jobby requires a plug wire of wrap around.
Sven you totally quarterloafed your computer..
Thanks, fortunatly I plan on converting to the 2.2 coils anyway so that wont be a problem.
