My BPU'd 1jz swap/build thread....

bigaaron

Supramania Contributor
Apr 12, 2005
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That is our manifold, I had to modify the dump tube for Mark's wastegate. I am actually going to take some of those manifolds and have them modified by our tube bender/fabricator. Then there will be a 1jz manifold available that ACTUALLY FITS A SUPRA. I can sell the manifold with a Tial copy 44mm wastegate for $325. Or the manifold itself for $260.

I made the exhaust from the parts Mark supplied.
 

rakkasan

Currahee!!
Mar 31, 2005
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Awesome work, it looks fantastic! I can't wait to see the dyno results. Check your email Aaron, you should have something from me. Thanks again Aaron & Jose!
 

rakkasan

Currahee!!
Mar 31, 2005
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bigaaron said:
It's the MDC special :) I'm not too sure of the specs to be honest, I think maybe a 60-1. WHP......well if it makes 420-450 whp I think we would be happy with that. We're using 440cc injectors.
with more fuel, 500+ shouldn't be too hard to get....
 

rakkasan

Currahee!!
Mar 31, 2005
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Reign_Maker said:
Get more fuel then... ;)

LOL, no need, I'm an old man....:biglaugh: Besides, the only reason I would lack fuel is the injectors. They were *supposed* to be 550's (from a MKIV), yet they were flowed at/as 440's :icon_conf
 
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Reign_Maker

Has cheezberger
Aug 31, 2005
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Yur an old man, what the? We're about the same age, right? I guess Im old too... :( *where's my false teeth and cane?*
 

bigaaron

Supramania Contributor
Apr 12, 2005
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Mark's turbo was machined incorrectly on the compressor housing. There was too much play side to side and it did not sit flat on the back plate, but there was not enough material left to machine it down to fix the problem. So rather then wait a week to ship it back and get it exchanged, Performance Techniques hooked it up for us. They had a used Garrett compressor housing and a brand new billet backplate in stock. They bead blasted the Garrett compressor housing and took Mark's turbo apart. Then while it was apart they upgraded the thrust bearing to a 360 degree which is better for high boost, instead of the 270 degree it came with.



OLD


NEW


270 deg on the left, 360 deg on the right






So from 10am until 11pm I spent the entire day today just to be able to bolt the turbo on the engine and hook up the oil lines, wastegate, downpipe, and exhaust. This turbo install would have been easier and less time consuming if I just bought and built the whole kit myself from scratch. There was no oil drain gasket for the turbo and the drain flange bolts for the turbo were not supplied so I had to go buy some, then the holes in the drain flange were smaller then the holes in the turbo so I had to drill them out. The origional manifold didn't fit in the engine bay. Once we changed the manifold the oil drain AN fittings needed to be changed to a different angle. The brand new turbo had to be completely disassembled and have major parts replaced. I modified our manifold with the Tial flange, I had to go buy tubing to make the dump tube.



Jose worked on getting the new clutch and trans all ready to go, changing the driveshaft seal on the trans, installing the 440cc injectors, fixing the throttle cable that was stuck open, and installing the brake booster check valve that was missing. The alternator cable was not extended and the PPS is not hooked up, which will be taken care of tomorrow.

We are going to drive this car tomorrow even if we have to work 24 hours straight.
 
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mk3forme

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Apr 5, 2005
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Nice Aaron. You guys are way thorough. Very respectable. I would have been pissed about that turbo. Who did he get that from again?
 

Reign_Maker

Has cheezberger
Aug 31, 2005
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bigaaron said:
This turbo install would have been easier and less time consuming if I just bought and built the whole kit myself from scratch.
You know what they say Aaron, you want something done right, you gotta do it yourself...

Sounds like a hassle, I'd be on the phone with the turbo company and the manifold comapny raisin some hell... Im just really glad that Mark has a crew like you guys to take care of this for him, its refreshing to see you guys handle this so professionally... Keep up the good work! :)
 

bigaaron

Supramania Contributor
Apr 12, 2005
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Thanks guys!

I don't want this to sound like we have any problem with Mark at all. He is paying to get everything done, and from day one he has been very considerate and offered to pay for anything extra that was needed. I'm happy to be able to do the project and it will come out nice. We just didn't forsee how much time would be involved, and I'm partially talking about all this to show people how any T4 turbo kit is going to take a lot more time then it looks like when you get started, reguardless of who you get the parts from. The exception would be buying a complete ready to install kit like a Boost Logic, HKS or Greddy turbo kit, but those usually cost 2 to 3 times as much money.