2.5 N/A to 2.5 TURBO

[th3dop3man]

ok so i am buyin a 92 daytona with a 2.5N/A in it !! and i curently have a 88 daytona with a 2.2TURBO that isnt runnin the best so i want to make the 2.5TURBO from the 2.2!! so my question is will the the intake and exhaust manifold from the 2.2 bolt right on to the 2.5??

thx Dale

[EvilcowRoland]

In short, yes. You could pull the head off the 2.2 and swap that with manifolds/turbo attached or you could move everything. But bare in mind, the valves on the N/A head won't handle the turbo power. It will cook them. And your N/A 2.5 block has non-dished pistons, so higher compression. You will also need a different computer since you'd be upping engine size.

You already have a decent engine in that 88 Daytona. Just rebuild it. It'll be easier in the long run.

[th3dop3man]

yes that 2.2L has 168000km on it and it was said to be rebuilt already.. but the problem witht that is the oil smells like gas?? and now its gettin a little knock inside somwhere! but it sounds great besides that..... TODAY however i stumbled across a DAYTONA SHELBY VNTintercooled ya RARE!! but sadly they ripped the turbo out already!! but the comp is still init and the intercooler so im lookin to get hooked up with them from that and put it in my 2.2L if possible??!! so now i ask can i use the shelby computer with the 2.2L turbo with the MITSU turbo on the engine can it handle the BOOST??
I WANT BOOST.... any comments would be great!!

[EvilcowRoland]

Wait, I'm confused. You want to put the VNT car's parts on the N/A engine? Or you want to put the VNT parts on your 2.2 turbo engine? The VNT is a common block and it should have the same engine mounts as the 92 car. You could put the VNT engine in the 92 car with intercooler and all, add a turbo (mitsu or whatever), and then put a 2.2 T2 computer on it. Or you could use a T1 computer with proper tuning and precautions. The VNT computer will not work with your 2.2 turbo or any swapped turbo setup unless it has a VNT turbo on it.

The gas smell in your oil could mean a few things. 1) you're just plain over fueling. 2) your rings are shot. Have you done a compression test on it?

[th3dop3man]

okay so i CANT use the comp from the VNT with the 2.2mitsu?? what is so different about the computer they are both 2.2L and have the same engine yet just the turbo will make it not work?? p.s the 88 is a C/S edition!!! yes i did a compression test i got from 120 to 125lbs in all cylinders! my friend has a 2.5LT1 but he has replaced and shaved his head and he has 150lbs across!! sadly that VNT car doesnt have the VNT turbo in it its gone, i think it had the case of carbon build up and fried itself it does have 199000km on the tach!

[Blue Iroc R/T]

No matter what engine you put into the 92 Daytona, 2.2 TII, VNT or 2.5 TI, the ONLY computer that will work correctly is a 92 TI computer. Very Rare and very hard to find. Only 230, 2.5 Turbo Daytonas were made in 92. See stats here: Mark's 92 Daytona Iroc Shelby Photo Gallery by Ralph Scott at pbase.com
You can increase your chances in finding one by also looking for a computer from a 92 Lebaron 2.5 T1. They made 543 Lebarons in 92 with the TI. Stats here: 92 Lebaron GTC Convertible (2.5 Turbo) Purchased 04/10/04 Photo Gallery by Ralph Scott at pbase.com
In 1992 Chrysler changed the computer to a SBEC-II which has a different language from the SBEC-1 that was used in 1990 and 1991. The SBEC-II also controls some of the electrical on the dash cluster and cruise control. You will also need to find a complete engine bay harness to make the conversion. If you go with the TII or VNT, I am not sure how much difference there would be running the 92 TI computer. I think it would be OK, because we are running TII injectors with a Stock 92 SBEC-II on Marks Black Daytona.

This 93 Daytona started its life as a 93 Daytona ES, 2.5 n/a Automatic. It is now a 2.5 Turbo with a A568 5spd. It was ONE of the first to be converted.
Mark's 93 Daytona ES "2.5 Intercooled Turbo" Photo Gallery by Ralph Scott at pbase.com

Good Luck. The conversion you are talking about is not quite as easy as if may 1st seem. But it can be done if you first find the SBEC-II and harness.

[lotashelbys]

^ you will want to listen to this guy. He has been through the whole 92 SBEC II thing and has learned quite a bit about the electronics. I think he might even have a 92 TI computer laying around still if you really need one. He is a super nice guy and I would guess be more than happy to help you out with some tech ?s. Not to mention he(and his electrical genius son)did an awesome job on that 93 N/A to turbo conversion

[EvilcowRoland]

That's absolutely dead on right. I didn't even consider the car was a 92 so it had the newer electronics. That's why I went with an '89 for my first conversion. Much easier to find the parts. Honestly, if you want to go through the trouble then it'd be cool when done. If you want something easy, this is not the way to go. Figure out what's wrong with your 88 Daytona and stick with that. Keep the 92 as a daily driver maybe?

The reason the VNT computer won't work is because it's programmed differently. It's set to use the VNT solenoids. You could probably send it to one of the vendors and get it reflashed with a calibration for your application. Probably not a bad idea anyways if you do go with the 92 conversion.

[phantomrt]

I have done the same conversion as Ralph's son did, at about the same time. It is easy to do once you have the parts. The next viable option is to convert the car to '91 electronics, which can be done, but it is not for the faint of heart.

My all-original 2.5 T-1 makes 150 PSI also. It is the lowest compression ratio engine of these Chrysler 4 cyls, yet yields the most compression. That is achieved via camshaft profile.

A little veering from the subject at matter, but I would not doubt that there is a camshaft difference between the original '89 2.5 turbo and the '91-'92 2.5L turbos. The older stuff seems to make lower compression readings, according to people on the online forums.

As mentioned above, to turbocharge the '92 Daytona, you will essentially need an entirely new engine that is built to handle forced induction. The '88 engine won't be the best choice because of differences in the block, and getting all the mounts to line up, etc will be extra work. Plus, the '89+ block is far better to use anyhow.

[th3dop3man]

ok so now i am so understanding what my buddy is going through right NOW he has an 89 2.5T1, BUT i know we took 2 computers out of lebarons both 2.5T1 BUT now that u mention the year they werent and 89 probably a 91 or 92 maybe but he has 1 in his car now and his car boggs out at like 4000-5000 and he cant go WOT it boggs!!! so i couldnt use the 88 2.2T1 engine and computer in the 92 because of its other electronic opitions!!?? so if i put my 2.2T1 in the 92 with the computer and harness what kind of functions would i loose ?? i know cruise control would be 1!!

thx Dale

[Blue Iroc R/T]

Quote:

Originally Posted by th3dop3man so i couldnt use the 88 2.2T1 engine and computer in the 92 because of its other electronic opitions!!?? so if i put my 2.2T1 in the 92 with the computer and harness what kind of functions would i loose ?? i know cruise control would be 1!! thx Dale

The 88 computer will not fit into the 92 vehicle. The 88 is a SMEC and has to connector plugs going to the computer. The 92 only has ONE 60 pin connector going to the computer. The 92 is just a bastard year. Nothing else will work period. I did get a 91 computer to run to make 1 lap around the block, but once I shut it off, it wouldn't start it back up again. I never spent any time trying to figure out why it worked once, and not again. So, I can't say with absolute certainty that you can't get a 91 SBEC-1 to work. I just never tried REAL hard because the computer was loaned to me and I didn't want to take a chance on screwing it up.
The 2.2 T1 will work fine in the 92 vehicle. Its just that you will need a 92 T1 harness and computer.

[th3dop3man]

ok so i know that the electronics are different i dont care if i loose some of the car functions if not important!! but i am goin to switch the harnesses if i use the 2.2L engine i will use that computer!! i am gettin rid of the steering wheel that is the 92 because it is too big so cruise control is going ne ways!!

[Blue Iroc R/T]

I can't honestly say what all you would loose. I have never done a SBEC-II to SMEC harness conversion. I don't even know if the bulk head connector will match.
I'm just guessing here, but I THINK that you would have to swap out the entire dash & dash harness so that you would have matching connectors for your SMEC Engine Bay Harness. I could be wrong on this. Maybe someone else on here has done a SMEC to SBEC conversion that could give you more reliable help. You are talking a much deeper conversion than what I am experienced with.

[EvilcowRoland]

Quote:

Originally Posted by th3dop3man i am gettin rid of the steering wheel that is the 92 because it is too big so cruise control is going ne ways!!

I don't know what the inspection laws are in Canada, but a few states here won't pass you if you remove an airbag from a car that came eqipped with one. Just thought I'd throw that out there so you could check on it before you go through all the trouble.

[th3dop3man]

LOL cool ill um look into that!! thx!!