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View Full Version : Upgrading to T2 - do I have it covered?


Snailpower
02-07-2007, 08:47 PM
I have the radiator, intercooler (stock T2), airbox, upper and lower IC hoses and the lower rad hose for my 89 Lebaron 2.5. What else am I going to need? Do I need a SMEC from an 89 T2 car or will me stock computer work? I plan on turning up the car with a G valve to around 12 PSI.
1FastCSX289
02-07-2007, 09:03 PM
I have the radiator, intercooler (stock T2), airbox, upper and lower IC hoses and the lower rad hose for my 89 Lebaron 2.5. What else am I going to need? Do I need a SMEC from an 89 T2 car or will me stock computer work? I plan on turning up the car with a G valve to around 12 PSI.

The T2 cars had an air sensor, which allowed the computer to compensate for the cooler air charge, but I dont think its necessary. Why only 12 PSI? Youve got an IC.....crank it up!:lol: Well, at least to 14 anyways.
tryingbe
02-07-2007, 10:15 PM
Stay with 12psi. 14psi might be pushing it on the fuel.
I would change the fuel pump now rather than later.
1FastCSX289
02-07-2007, 11:03 PM
Stock fuel pump will handle 14 PSI all day long with a stock head, IC, intake, etc.
Orangetona
02-08-2007, 07:35 PM
You still need the intake manifold, throttle body, injectors, injector harness (I think), exhaust manifold (or modify the one you have), if you're doing a true TII conversion you'll need the turbo. Also, you need a TII computer from an 87 Daytona TII, lebaron, GLHS. You've still got quite a bit more to do.

P.S. plan on about $1000 to get it done if you are starting from scratch. Me and my friend did his car and the cheapest we could do it for was about 1000.

EDIT: After I read your post more, I think you need to be more specific. Year, vehicle, engine.
1FastCSX289
02-08-2007, 08:46 PM
Are you just looking to intercool or are you looking for a T2 spec car. IF your looking for a T2 spec car, than you will need another motor because T2's were 2.2L. I got the impression from your post you just want to intercool the car. IN that case, the manifold will work if youre not planning on using an intake temp sensor (or you could drill and tap yours if you want one....and get the computer). The injectors are the same for T2 and a 2.5 (as well as the harness). Obviously, the turbo is different from a 2.5 (mitsu) to a T2 (garret).
Orangetona
02-08-2007, 09:24 PM
OH whoops I read this post completely wrong...

I thought he was converting an older TI car to TII spec. My bad.
turbovanmanČ
02-08-2007, 11:18 PM
Looks like you have it covered. Don't use the 2.2 cal in your 2.5L, it requires some tweaks to work properly and if done wrong, you'll melt your engine down. If keeping it around 12, the CAT sensor would be nice but not needed until you get a cal, then you can have it turned on and wire the sensor in.
Snailpower
02-08-2007, 11:26 PM
Glad I could try and confuse everyone! I am not looking for a "true" T2 spec car, just to intercool this one, bringing it up as close to T2 status as I can. The info provided on the injectors being the same, etc, was what I was looking for. Thanks all for the help! The stuff is on it's way, so I have a weekend full of work ahead.

BTW, there is a large sensor in the middle of the intake manifold, below the fuel rail. There is a one wire connector going to it. When I removed the connector, the center of the sensor is missing so the wire has nothing to attach to. Any idea what this sensor is? I know it need replaced, but not sure what to call it.
turbovanmanČ
02-08-2007, 11:31 PM
That sensor is the KNOCK SENSOR, make sure you fix that, otherwise you'll be cracking pistons very soon.
Snailpower
02-08-2007, 11:43 PM
Thanks...it'll be added tot he list for this weekend.
daytonaturbo87
02-09-2007, 04:22 PM
If you've got an existing 2.5 T1, all you need to do is pipe in the intercooler and use a G valve to set the boost to 14psi. A good future upgrade would be a switch to a garret off of a 2.2 turbo and ditch the mitsu turbo you got, but a nice exhaust system would be a good upgrade too. Your stock setup will push 14psi all day long. Don't worry about not having the intake charge temp sensor.
turbo-baron
02-09-2007, 06:04 PM
Hey i have the same car and engine and im going to be doing the same mods some time soon t2 rad/intercooler and g valve. Anyone have any idea what times i would be looking at in the quarter mile?
Thanks
Orangetona
02-09-2007, 06:17 PM
Id guess around the low 16s high 15s.
turbovanmanČ
02-09-2007, 06:19 PM
Depending on traction, 15's and if your bad at launching, much higher, lol!
turbo-baron
02-09-2007, 06:20 PM
I heard from a couple people that bone stock a 2.5 t1 in a baron would run mid 15's.
Snailpower
02-09-2007, 07:09 PM
Lebarons are too heavy. The lighter cars with the T1 2.5 were capable of mid 15s if you knew how to launch 'em, but the Lebaron has been bellied up to the trough and put on a few pounds. With my boost at 14, if it runs a 15 second time I will be happy....for now
turbovanmanČ
02-09-2007, 07:11 PM
I heard from a couple people that bone stock a 2.5 t1 in a baron would run mid 15's.

Most T1's were 16 or high 15 sec cars if you could launch it. If running stock boost and an auto, high 16's.
turbo-baron
02-09-2007, 07:33 PM
What would it take to get it into mid 14's?
Turbulence
02-09-2007, 07:51 PM
What would it take to get it into mid 14's?

Not necessarily the best comparison but...similar weight. My 90 Minivan weighed 3300 lbs at the track. with the 2.5 intercooled, garret, 3 inch exhaust, graingered to 17 lbs, G head and slicks, 14.52 @ 89. Likely would have been similar with a swirl head.

Martin
89 Horizon
turbovanmanČ
02-09-2007, 07:59 PM
What would it take to get it into mid 14's?


Big intercooler, 18-20 psi on a Garret, drag radials or slicks, good clutch or a good rebuilt auto and of course, enough fuel.
turbo-baron
02-10-2007, 02:18 AM
Im going to be doing a 5 speed swap at some point (probably next winter) how much of a difference will the five speed make in the quarter mile. Im doing it mostly for fuel milage reasons.
1FastCSX289
02-10-2007, 09:48 AM
Im going to be doing a 5 speed swap at some point (probably next winter) how much of a difference will the five speed make in the quarter mile. Im doing it mostly for fuel milage reasons.

Unless you are a really good driver, it will probably make you slower. There is more parasitic drag with the auto, but its usually made up for in the fact that its easier to launch (better 60' times) and a well built auto shifts faster. Serious drag racers usually prefer an auto. I like the stick because its more fun on the street.
turbovanmanČ
02-10-2007, 03:59 PM
Im going to be doing a 5 speed swap at some point (probably next winter) how much of a difference will the five speed make in the quarter mile. Im doing it mostly for fuel milage reasons.

See below


Unless you are a really good driver, it will probably make you slower. There is more parasitic drag with the auto, but its usually made up for in the fact that its easier to launch (better 60' times) and a well built auto shifts faster. Serious drag racers usually prefer an auto. I like the stick because its more fun on the street.


Exactly, an auto is stupid proof at the track, brake torque, launch with boost, your gone.

I agree, 5 speeds are so much fun but being mines a serious DD, I am sick of shifting gears in rush hour traffic, :(
turbo-baron
02-10-2007, 04:46 PM
Lebarons are too heavy. The lighter cars with the T1 2.5 were capable of mid 15s if you knew how to launch 'em, but the Lebaron has been bellied up to the trough and put on a few pounds. With my boost at 14, if it runs a 15 second time I will be happy....for now

Is your baron a hardtop or vert?
Snailpower
02-10-2007, 05:15 PM
It's a ragtop car with all the bells and whistles...

I wish there was an easy way to stiffen the chassis like I did on my 70 B body. This car REALLY flexes in the corners...
turbovanmanČ
02-10-2007, 06:49 PM
It's a ragtop car with all the bells and whistles...

I wish there was an easy way to stiffen the chassis like I did on my 70 B body. This car REALLY flexes in the corners...

You can, add front and rear strut bars, and also tie the front and back together at the floor boards.
turbo-baron
02-10-2007, 07:50 PM
It's a ragtop car with all the bells and whistles...

I wish there was an easy way to stiffen the chassis like I did on my 70 B body. This car REALLY flexes in the corners...

By saying with all the bells and whisles do you mean a premium? Leather ,digital dash,systems check etc. if so thats identical to mine.Once you get the work done on it let know how it runs i probably wont be getting to do mine for a couple months after i get my floors and rocker pannels done.