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My Turbo Build.

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Old Sep 14, 2011 | 08:49 PM
  #101  
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If anyone still cares, I'm still daily driving it and working on it.

Around July I finally got a Walbro 255 pump in which fixed my lack of fuel supply in high rpm boost.

Well I got around to installing an electric fan. It's controlled by Megaquirt and also runs when the AC is on. It's an OEM Jeep WJ fan, 19" across, 3" thick, and S-blades. It moves a LOT of air and is quiet. Keeps coolant temps in the 180º-190º range on 95º days.

Here's a couple pics. I also used some 1/8" aluminum plate to make a bracket to hold the overflow tank because A: I broke the fan shroud which normally holds it a long time ago, B: I no longer would have the shroud with the E-fan anyways and C: zip-ties holding it on was ghetto.



Re-did the downpipe/exhaust exit, originally it went right near the tire pointing almost straight down. A couple months ago I changed it to exit straight out the side but didn't like the way it turned out so I re-did it again. Ignore my ugly welds, the 90s have been cut off and welded a few times, the welds are air tight though. It came out pretty clean and sounds better too. It's amazing how such small differences in pipe length, diameter, and angle can change the sound so much.
The snail downpipe.




Also achieved a new best of 18.5MPG since the turbo. That's running a 70mph on the freeway, and about 10 miles of stop and go traffic. I'm confident I could get 20 out of it like I did a couple times when N/A if I avoid traffic and slow it down to 65, just never get the opportunity for those kinds of drives..
 
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Old Sep 19, 2011 | 09:35 PM
  #102  
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Well today I pulled the No-Slip and removed the synchro rings.

The whole idea behind the No-Slip and it's synchro rings is that it keeps the locker unlocked during a corner, so in a truck with a V8 and no weight on the *** end it will just spin the inside tire at hardly any throttle above idle, and to get it to lock you've got to use way more throttle than a corner typically calls for to speed up that inside tire to match the outside tire and then it will lock, which is very clunky and wastes tires. Removing the sycnhro rings eliminates this action and makes it function like a standard auto locker (Lock-Right, Aussie, Detroit), so instead of spinning the inside tire on a corner, it will just lock with no fuss or muss, and I'm certain that scrubbing the inside tire will actually result in less tire wear compared to spinning it. The other lockers I've own(ed) do not see a large increase in rear tire wear compared to the No-Slip.




I took it for a drive and it's SO MUCH NICER! Wish I did this a long time ago.

 
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Old Sep 20, 2011 | 01:27 AM
  #103  
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Very very nice work man!! Im doin almost the same exact thing you are! Only im settin mine up to shut off my turbos! Ill be runnin twin garrets with exhaust cut outs to turn off my turbos, and wired to my switch for the exhaust cutouts will be the 2nd fuel pump(flow thru design) the external oil pump with a tank in the bed! And ill have a tuner that has 3 preprogrammed setups for stock/mild/wild! Very very nice work man!!
 
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Old Sep 20, 2011 | 02:22 AM
  #104  
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Originally Posted by Hahns5.2
and to get it to lock you've got to use way more throttle than a corner typically calls for to speed up that inside tire to match the outside tire and then it will lock
But this I don't agree with. For me mine engages with very little throttle, it is almost impossible to turn from a dead stop with your foot on the gas even lightly without it being fully engaged and slipping/spinning/chirping the inner tire. I have learned to gun it before entering the turn from a dead stop so I can coast into the turn, doesn't always work out so easily though.

I got the No-Slip and I don't have any issues of it not engaging if that is where your getting at. Before I had the LockRight and in between the two they feel the same to me.

Was yours just showing signs of wear?
 
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Old Sep 20, 2011 | 12:28 PM
  #105  
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Originally Posted by Crazy4x4RT
But this I don't agree with. For me mine engages with very little throttle, it is almost impossible to turn from a dead stop with your foot on the gas even lightly without it being fully engaged and slipping/spinning/chirping the inner tire. I have learned to gun it before entering the turn from a dead stop so I can coast into the turn, doesn't always work out so easily though.

I got the No-Slip and I don't have any issues of it not engaging if that is where your getting at. Before I had the LockRight and in between the two they feel the same to me.

Was yours just showing signs of wear?
I think you're feeling the inner tire spinning, not scrubbing. The way it's designed is that you MUST speed up that innder tire to match the outer tire speed before it will lock. Removing the synchro rings elminates this and makes it work like it should, like a Lock-Right/Aussie/Detroit. It's not worn at all. It drives much better now. My friend also had a No_slip in his Ranger and it was the same way, he's got a Detroit now and likes it much better.
 
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Old Sep 20, 2011 | 12:47 PM
  #106  
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What do you mean scrubbing?

I can tell it is fully locked after idle or light throttle.
 
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Old Sep 20, 2011 | 05:14 PM
  #107  
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Scrubbing is what happens during a turn when the locker is locked and the inside tire is being dragged, this is different from what the No-Slip does in a turn, when the inside will spin faster than it needs to, untill it catches up with the outside tire, then it will lock. IMO a proper locker shouldn't do this, it should lock the second the inside tire slips, which is what I modified it to do.

Most people tell me I'm wrong Aabout the No-Slip. That's fine. I've driven the No-Slip daily for nearly 2 years and nearly 40,000 miles. And I have another 30k at least of driving with a Lock-Right and Aussie Locker. I put my money where my mouth is and disabled the part of the No-Slip that makes it a No-Slip and it works like it should and it's much nicer to drive If it somehow made it worse to drive I'd be putting it back like it was.

Very very nice work man!! Im doin almost the same exact thing you are! Only im settin mine up to shut off my turbos! Ill be runnin twin garrets with exhaust cut outs to turn off my turbos, and wired to my switch for the exhaust cutouts will be the 2nd fuel pump(flow thru design) the external oil pump with a tank in the bed! And ill have a tuner that has 3 preprogrammed setups for stock/mild/wild! Very very nice work man!!
Thanks. Why would you disable the turbos? And do yourself a favor and go straight to standalone and skip that SCT nonsense.
 
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Old Sep 20, 2011 | 07:39 PM
  #108  
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Defiantly not scrubbing for me it is fully locked.

I'm glad its working good for you now.
 
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Old Sep 20, 2011 | 08:07 PM
  #109  
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If it's locked around a corner, it's scrubbing.

Straight from Powertrax's website.

In the figure the POWERTRAX® Traction System driver disengages to allow wheel differentiation, the synchro ring rotates with the coupler and the teeth of the synchro ring travel under the extended teeth of the driver. The synchro ring continues to rotate with the coupler until it contacts the spacer paddle. The spacer paddle then stops the synchro ring, thereby controlling the specific amount of overlap of the synchro ring teeth relative to the extended teeth of the driver. The overlap position of the synchro ring prohibits the driver teeth from reengaging with the coupler teeth. As the coupler continues to rotate through the turn, the driver is held disengaged from the coupler and the coupler teeth are able to spin freely over the driver teeth.
So as I said, in a turn the synchro keeps the outside tire disengaged in a corner.
After the vehicle comes out of the turn, the speed of the two wheels equalize and a slight rotation of the coupler in the opposite direction carries the synchro ring out from under the extended teeth of the driver, thereby allowing the driver and coupler to fully reengage and connect the two axles together again.
And only after a turn, when the speed of the two wheels match, will the synchros will allow the locker to lock. If you want it to lock in a corner, that inside tire has gotta speed up to match the outside tire. Perhaps it isn't as noticeable with your automatic, perhaps you use enough throttle before a turn to keep it locked through the turn, perhaps you're misinterpreting what you're feeling when it happens, I dunno, but mine worked like they say it should and I don't like it. It was most annoying when taking off from a stop while making a sharp turn, now it just hooks and goes. Scrubbing that inner tire from a stop is a lot smoother than spinning it up to match the outside tire then the locker suddenly locking.
 

Last edited by Hahns5.2; Sep 20, 2011 at 08:52 PM.
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Old Sep 21, 2011 | 11:47 PM
  #110  
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Today I connected the stock shift light to Megasquirt.

Here's a short demo vid. It's set at 5300, rev limiter is 5500, beyond that is the magical land of valve float.


Have I mentioned that I love MS
 
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