Here is the setup I'm running just wondering if anyone else is doing the same thing.

I'm running the 20B with a single turbo and LTX12 ECU. The main question is if anyone is running P/S and A/C as I will be. I don't think I've seen any other conversion thats running the 20B with P/S and A/C. If I'm wrong then please post some pics. Thanks

 

http://www.cris.com/~Asam/contents.html

http://www.pettitracing.com/

 

I wish Attila would of posted more pictures. Has he ever posted another page with HP numbers after he broke the engine in.

UsfDr.

 

Is there anyone else with a 2nd gen running A/C and P/S on their 20B

 

k2rd had ps for awhile, why do you ask? the setup shouldn't be much different except it makes the left side ic pipe hard

mike

 

Sorry if this is off topic,but the ECU you are running is a microtech right? If so, is it an upgraded version over the MTX-12? Is there any real differances detween the two?
Thx




Trey

 

P/S alone is not the hard part. Its P/S with A/C that makes it a bit more challenging. Because of trying to make everything fit up front.

UsfDr

 

P/S and A/C just get in the way... P/S on an FC just ruins the mood...

I ditched my A/C and P/S when I dropped the 20B in.

 

yeah, it might be easier to make a different condensor or lines or something, make it easier to route?

mike

 

Why don't you go with a manual steering rack? That's what I did and it steers very easily just being parked...

 

Thanks for the imput send more. As for the manual steering, I have though of that. I know its easy to steer that is not my concern. My main concern is when I'm going about 150+ MPH and the steering wheel is loose as hell. Thats the main thing I like about the speed or rpm controlled P/S, it tightens up as you go faster. I dont think the manual rack can do that and that is why its no good for me.

Oh, I am going to use the stock condensor just need to modify the lines a bit.

UsfDr

 

The PS actually loosens up as you go faster, reaching nearly 0 boost at 110 mph, so it's basically doing nothing for you at that speed but reverting to the more sensitive 15.2:1 rack. The PS firms up under lateral G-loading, which can unbalance the car much like the DTSS. The 20.3:1 manual rack is superior IMO, and it is specially designed with a 0.5 mm bulge in the center which keeps the steering tighter at low steering angles for excellent high-speed stability on the straights. You may want to consider actually driving an FC with a manual rack before deciding to keep that PS rack. I don't know of any racers who prefer the PS rack, but I guess you could be the first.

Are you sure that you want to use a Microtech EMS? It sounds like you want a lot of amenities, and the Microtech products are really more for no-frills drag racing.

I'm going to use an aftermarket AC because freon is just too difficult to deal with nowadays, and my stock AC system is in sad shape after all these years. I still haven't decided on which AC I will use because that decision will come later on down the road after I get the car up and running. I think I may need to mount the condensor horizontally, but that also will be determined at a later date. Yes, my friends all tease me about putting AC in my stripped-out street/race car. It all comes down to two physics equations:
Black Hatchback + Florida - Interior - AC = 2 much suffering 4 me
Critics + $ = Buy their own 20B sweatbox

Yes, the LT is the newest version, and it has 3D fuel and ignition mapping, a laptop interface with advanced Windows software, and some other upgrades.

 

I'm running P/S and A/C. It's all of the 2nd Gen TII stock stuff.

 

I not sure I agree with that. I know for sure when I had my TII convertible running and the P/S hooked up it would get much stiffer upon accelaration and higher speeds. Teh 88's worked on speed and when the speedometer was disconnected the steering was loose as hell at any speed. It was dangerous to drive, but when the speedo was connected it definately got tighter at higher speeds.

Yes I really need to do this so I can see the difference.

I dont understand what aftermarket AC doesn't use freon.

The only ammenities I have are A/C and P/S both of which are not controlled by the ECU. The ECU needs to only maintain the idle when the A/C is on. and thats about it. Although, in the stock computer there are wires running to it, when I switched to Haltech it had no A/C or P/S wires going to it. It only had to control the BACV when the A/C was on.

UsfDr

 

How did you get your quotes to include the original poster

Newbie

 

i think my manual rack is too light all the time, i do have small tires and i'm used to a first gen though

mike

 

Oh, I see. You think you like the PS better because you have it backwards. The PS boosts more at low speeds for making the car easier to steer when parallel parking and whatnot. That stiffer feel you liked at higher speed was the PS deactivating to put more emphasis on the manual rack. I also have a feeling that when your speedometer was disconnected, the PS computer thought that your car was at low speed (ie no signal = 0 mph), and gave you full boost, which would make the car "loose as hell at any speed". You don't like the PS, either, but you just didn't realize it, lol. Here is a very basic article on the subject of speed-sensitive PS:
http://ca.autos.yahoo.com/010815/11/8ymj.html

Those that use R134.
http://www.heinleys.com/a_c_and_freon.htm

So how does the Microtech EMS control the idle when the AC is turned on?

Click on the Quote button instead of the Post Reply button.

 

you hook the ac switch to the aux input and the aux output to control the idle valve, pretty simple its all explained in the manual how to do it, you set a min and max idle speeds and it will idle,
even without the idle valve hooked up the car will run fine with the air con on it will even idle fine, i have setup 3 cars with air con and never used the idle valve to control the idle, you can tune around it so it wont stall out.

Dale

 

As far as the Manual steering rack goes I just need to try out someones car that has one and compare it to one that has P/S. It really doesnt matter to me either way. Just which ever one feels better to me when I drive it will be the one I go with.


UsfDr