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dexter72

Dexter72's 2JZ NA-T Budget Swap..

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For the throttle cable i used a long cruise control cable from some toyota.. Lol  Made a cable bolt thingy to secure the cable to the Z throttle rod bracket..  I couldnt find the right type of cable collar at a bike shop, so i made this.

 

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I used the fan because im old school, I have seen 2 of these go bad in all my years of working on cars. That's almost 30 years. I cut a half inch off of each blade tip to make sure i had good clearance for my lower radiator hose and top running inter cooler pipe..

 

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Found a Ford throttle body hose that fit the 2 1/2 intercooler piping and was a tad bit large for the Toyota throttle body.. Made a spacer for the throttle body to ford hose connection.. The Ford hose had a port in it to mount my Intake temp sensor for Megasquirt 2.

 

I got the engine to run but it took 3 weeks to figure a Megasquirt 2 settings issue.. Megasquirt Unit couldn't see the crank sensor signal. Even though the engine would run if i sprayed starting fluid in the throttle body. Engine had spark and fuel..

 

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Engine is all done..

 

For exhaust i just used he back half of the 3'' flowmaster setup that was on it.. Used a few pieces from a 3'' system i got from the Junkyard.. Braze welded it all together with a oxy/acetelyne torch..

 

I drove it home Nov 1st.. Had good power for no boost driving. i figured it would be a dog. Tuning it as i drive it.. Boost doesnt really kick in until about 4k right now. Going to lean out the freeway numbers some to try to it to boost sooner in 4th gear.. It pulls hard at 4k but i dont have the higher end tuned yet so i dont push it. Gt35 turbo 68. ar housing.. Think it should boost by 3500 rpm. Its cool weather in Phoenix now so when i have time to drive and tune i do.

 

Exhaust is loud as hell so may remove the Fowmaster and find a quieter muffler.. Has a little drone to it at 2500rpm which i am fine with but me and my buddy cant talk to each other in the car.its so loud. Lol

 

 

 

 

 

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I appreciate the members who post pics and info of their build threads, I read a ton of threads on here and on the Lexus forum. Tons of info to use and save.

 

This cost me about $1,100. Max.. I rebuilt the engine, bearings rings valve job. I already had the Megasquirt2 Stand alone unit and harness.. So tack on another $600 bucks for that stuff. You can run these engines off of a 2JGTE Ecu.. or any other Stand Alone unit.. I went with thr trigger wheel, sensor and coil pack because the Megasquirt is already set up to run that system..

 

The lack of trans setup pics was only because i was getting into it didnt stop for pics.. The trans mount is the toyota bracket with 2 stainless steel brackets bolted to the z tunnel.post-3128-0-11308900-1448422629_thumb.jpg

 

Shifter i made. You can see one of the stainless steel brackets in the trans hole.. Console put back in using the Z shift boot. and thicker lower z trans hole cover.. Toyota shifter barely peeking out.. Lol  Works good though.. I do have to watch my hand when putting the car in reverse. E-brake handle is close.

 

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Awesome build. Any updates on the tuning? Id love to get a ms file if you're willing to share. Gonna be putting mine in once spring hits and would like a template to go work off of or reference if needed. Maybe I missed it but how much power are you shooting for?

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Hi Kyle319,  Just message me when your ready and i will help you out. Remember that any timing map you use, you have to change it for your engine. Your new engine swap should run off of any L28turbo, 7mgte, 1jzgte or 2jgte map.. Then you have to make changes as you drive the car.. If you dont YOU MAY BLOW YOUR ENGINE UP.

 

I have been doing street tuning and freeway tuning runs when i have time to do so. Engine is running off of my L28 NAT Map.. Im just making changes as i drive the car.. Christmas time is here and work is slow so not a lot of extra money to spend on tuning..

I have been looking at 2JZ tunes on Supra Forum and 7MGTE tunes.. Surprisingly all are very close to mine, depending on Turbo boost levels..

Im running off of my 15psi Tial wastegate spring.. Which showed 13psi of boost on my gauge, with the L28NAT Engine..

I am only looking for high 300hp but no more than 450hp on the street. I think anything over that is overkill and you cant use it anyway.

 

Im not dumping the clutch in 1st gear since i have the W-58 trans in my car. I used to get messed with all the time on the Freeway, so i want 4th gear right..  :ph34r:

 

Future plans: A new set of tires. New alternator, mine is whining.. The engine is really loud with the Flowmaster muffler on it, so looking to quiet it down some with another muffler.. I bought an Ebay special GT35 T4 Turbo thinking it would boost at about 3,000rpm.. But full boost is coming on at 3,800rpm which im not really liking.. So hopefully i can lean out the tunes freeway map areas to get the turbo to boost sooner.. Otherwise im going to get a smaller turbo for the engine.. Im so glad i didnt get the GT45 turbo i was thinking about. This is why I bought the cheap chinese turbo in the first place. Id rather spend $250 for a turbo and not like it, then $800 and not like it. Later i can buy the quality Garrett, Precision and so on. 

 

Last sunday i was doing some 4th gear tuning runs. I was doing 75 in 4th gear and floored it.. Car pulled so hard it took me into the next lane. Glad i do those with nobody next to me. Engine is strong. Stock 2JZGTE Boost is 10.8psi. So this thing at 13-15psi definately makes my day. The difference between my old L28NAT and this 2JNAT are night and day..

Edited by dexter72

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Hi Zetsaz and thanks again, In my second to last post has the cost in it.. $1,100 bucks.  I already had the standalone. The MS2 standalone and parts would be another $600. Budget cost and self built. Car has been driveable since late October.. :D  

 

Junkyard parts to help keep cost low. :ph34r:

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Its all good. I just wanted to show people this swap is doable on a low budget. Car is meant to have fun.. If I wanted to race the car I would have done this differently.

 

Seeing budget swaps like this always makes me indecisive. I sometimes I want to just keep my L28, other times I want to buy this L28ET that's in town, then I wanna go big and do an RB25, or just an NA 2JZ.... Decisions are hard haha. 

 

Really comes down to power for cost. I'm not looking for much more than maybe 200whp. The car will be pretty much entirely street and really just for fun and some cruising. 

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If you have an L28 in your car, You can turbo it but you will eventually want more.. I enjoyed my NAT L28 but after being messed with by a lot of cars on the freeway, Pulled away from some, Others i had no chance. I said enough of this crap. Lol The costs to upgrade my old L28 and do this swap were close. New cam, followers, and Headwork would have been about $900.  For $200 bucks more i have this 2j swap, plus to upgrade this I only need larger injectors so i can add more boost.  :) 

 

You can get 200hp out of an l28 with just the turbo swap, if thats all you want...

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Yeah, dumping in the L28ET seems to be my best option right now. Sometimes I don't know if I just wanna drive around with the L28 though. It's in good shape and it runs nicely. I'm indecisive on buying the turbo motor and just letting it sit for a while while I focus on rust, paint, suspension and pretty much everything else and save the power stuff until later.

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Quick Update::

 

Setup is still running well, All the lights on the car stopped working one eve. Checked power at my fuse box and it was good, turned the lights on checked power at the fuse box again, No power at the fuse box.. Uh Oh.. So took a few days and found that a 42 year old wire had corroded in my body harness. Fixed that and then my wideband started reading lean on acceleration only. So fixing this wire, which may have been bad for a long while, has me now working on the Acceleration Enrichment settings with my Megasquirt. :huh:

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