Conversion Gurus needed
#204891
January 10, 2004 03:11 pm UTC
January 10, 2004 03:11 pm UTC
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Joined: Mar 2003
Posts: 5,126 Toronto
Rob Cauduro
OP
Senior Member, with Far TOO Much Time on Their Hands
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OP
Senior Member, with Far TOO Much Time on Their Hands
Joined: Mar 2003
Posts: 5,126
Toronto
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There seems to be many many dicrepencies between websites, boards and faqs on the wiring of the 7th extra maf wire when doing a turbo conversion. Some say it goes to pin 6 on the ecu (which acording to this already has a wire there) and some say pin 10. I am aware of the differences in schematics between 90 and 91-94 ecu's and this does not apply. I have also heard of people not hooking it up at all and the car ran fine. (some one here I beleive) Who knows if they were logging or not. So where does this wire go. Some one who has DONE the swap, please reply so I dont get a whole bunch of guesses here. Also, another problem I am having difficulty finding a definate answer to after numerous searches on numerous boards is "is there or is there not a tapped hole on an N/T block in the same place as a turbo block" for the knock sensor???? We are talking 4g63n/t here people. Some say there is but the hole is not tapped, some say its there but on a different location and some say its not there and the cast has to be drilled and tapped. Which is it so I can order a tap from work before wasting time while doing "rice wagons" conversion. Thanx
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Re: Conversion Gurus needed
#204892
January 10, 2004 06:37 pm UTC
January 10, 2004 06:37 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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I'll try to help. Its been awhile but I'll try my best. This info is for 91-94 models. The 7th wire is green with a white tracer. Its called "Air flow sensor active filter reset". I'm retty sure it hooks up to pin 6 on the ECU. What that wire does....beats the **** out of me. Now myself I don't have that wire hooked up. The runs, idles fine.I logged the car with TMO software and there didn't seemed to be anything wrong. But I do plan on hooking it up(someday),I mean it there for some reason and i hope it will solve some of the knock issuses with the car. As for the knock sensor I used the bolt hole the holds the AC Compressor bracket. My car never came with AC. 11 years with the bolt hole open to the elements made it tough going for the knock sensor to screw in. I recommend running a tap through there before screwing the knock sensor in. It makes life easier.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204894
January 10, 2004 11:45 pm UTC
January 10, 2004 11:45 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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Come to think of it, yes there was a spot for it. But I over tighten it and snapped the sensor in half. So I had to look for anthoer spot for it. From what I remember, I thik the HZ reading was 1609 at WOT. The car drive fine under 50% throttle but hassitates under full load. But not always. Sometimes it just rockets of the line. Wires or plugs maybe. - Running No fuel control
- 13g
- 450's
- NT fuel pump
- TSi regulator
- 91 Turbo ECU
- no oil cooler
- stock 1G side mount
Did a compresion test a few weeks ago using a cheap CT tester 201,205,200,210 Man these engines can take a beating
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204902
January 11, 2004 10:05 pm UTC
January 11, 2004 10:05 pm UTC
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Joined: Nov 2002
Posts: 4,264 GTA
Tim Grechin
Senior Member, with Far TOO Much Time on Their Hands
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Senior Member, with Far TOO Much Time on Their Hands
Joined: Nov 2002
Posts: 4,264
GTA
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Originally posted by Amin Ahmadi: Tim, is there thread on your NT blocks?! Yes. There are threads. The stock location for the knock sensor is low on the 2nd cylinder. On my 90 6-bolt block, there were threads in the non-stock spot closer to the head on the back of the 3rd cylinder, but not in the stock location. I just used the non-stock 3rd cylinder location. No problems. Reads knock just fine. On my 93 7-bolt block, 3 holes (the stock and 2 non-stock knock sensor locations) were threaded. Beats the **** out of me why, but there were 3 holes and all were threaded and could potentially be used to hold the knock sensor.
11.254@132.14MPH - Tractionally impaired
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Re: Conversion Gurus needed
#204907
January 12, 2004 02:22 am UTC
January 12, 2004 02:22 am UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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Another thing about the MAS sensor. The bolts that hold the sensor to the air can itself have a different bolt pattern from the NT compared to the Turbo sensor. You can always drill the new pattern and use RTV to seal it, but life would be easier if you have the air can from a turbo.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204909
January 12, 2004 03:04 am UTC
January 12, 2004 03:04 am UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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The back plate thing "the cap" I guess you can call it. The wire harness connector is part of it. The other reason to use the "cap" is its about 1/2" wider than the NT. Not much difference but you will need it because without that 1\2" the Turbo inlet pipe will be to short.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204912
January 12, 2004 04:13 am UTC
January 12, 2004 04:13 am UTC
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Joined: Mar 2003
Posts: 5,126 Toronto
Rob Cauduro
OP
Senior Member, with Far TOO Much Time on Their Hands
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OP
Senior Member, with Far TOO Much Time on Their Hands
Joined: Mar 2003
Posts: 5,126
Toronto
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Re: Conversion Gurus needed
#204913
January 12, 2004 10:15 pm UTC
January 12, 2004 10:15 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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Scott decided to part out his car. All the parts that Josh needs Scott should have. I go down to that neck woods once a week so I could pick up those parts. http://www.ca.dsm.org/ubb/ultimatebb.php?ubb=get_topic;f=8;t=005980
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204915
January 12, 2004 10:40 pm UTC
January 12, 2004 10:40 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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No I don't. I made mine out of 2" copper line. (plumbing pipe) and some rubber couplings from HomeDepot. Yes I'm cheap.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204917
January 13, 2004 09:24 pm UTC
January 13, 2004 09:24 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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I just remember something else that you might not of thought of. What type of oil cooler do you plan on using? if any at all. (I don't have one...yet) If you do plan on using a stock one, (90 style) than any year stock coolant pipe will work, and you also need the oil filter assembly BUT if you plan on using 91 and up style you will need a coolant pipe from a 91 and up Turbo, NOT the one from a 90. 90's have only one coolant outlet for the turbo 91's and up have two, one for the turbo and one for the oil cooler. I encoutered all these little things when I did my conversion . There's probally more little things but I just can't remeber them right now.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204920
January 13, 2004 09:35 pm UTC
January 13, 2004 09:35 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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No, well I highly don't recommend that. You are just asking for trouble.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204921
January 13, 2004 09:39 pm UTC
January 13, 2004 09:39 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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I guess you can rig somekind of "T" fitting on the coolant line that goes to the turbo.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204923
January 13, 2004 09:50 pm UTC
January 13, 2004 09:50 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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you still need the outlet. But other reason is one end is bolted to the block and the other end has an O-ring seal which slides into the water pump. With a rubber couple in the middle of the pipe might cause the pipe to move, virbrate, whatever and wearout the o-ring prematurely. Not to mention that if the coupler ever leaked it would be a hell of a job trying to fix it. But hey, I'm game for whatever it takes.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204925
January 13, 2004 10:01 pm UTC
January 13, 2004 10:01 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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hmmm...I guess you could. But now you are dicking around with mickey mouse fittings and clamps, hoses, etc. It just makes more work and it won't look stock.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204927
January 13, 2004 10:14 pm UTC
January 13, 2004 10:14 pm UTC
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Joined: Jan 2001
Posts: 1,336 Renforth & Eglinton
Tony Vaz
Serious Member
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Serious Member
Joined: Jan 2001
Posts: 1,336
Renforth & Eglinton
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If anybody else has some input... <h5>Jump in,</h5> we don't bite.
One of the guys on War Of The Wheels.
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Re: Conversion Gurus needed
#204929
January 13, 2004 10:20 pm UTC
January 13, 2004 10:20 pm UTC
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Joined: Mar 2003
Posts: 5,126 Toronto
Rob Cauduro
OP
Senior Member, with Far TOO Much Time on Their Hands
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OP
Senior Member, with Far TOO Much Time on Their Hands
Joined: Mar 2003
Posts: 5,126
Toronto
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And another thing, I am getting a 50/50 responce on whether to even run coolant on this little turbo. I might even just forget about the coolant so Josh can have it done, do his bling work, then in the spring, hopefully have a new prper water pipe to put on. We'll see.
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