Question about Toyota Supra

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I have a supra with a 2jz twin turbo stock an went on dyno it only pulled 129 rw kw i got told my turbos were not working properly and i should be pulling over 200 at the wheels any sugestions what could be wrong ?

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Leaking oil

if you pull the intake pipe off (that is the pipe from the throtle body to the turbo) you will be able to tell if there is any chance of leaking oil by running you finger on the inside of the pipe if there is no oil then maybe the turbines have a bit to much play for the full boost preasure if there is a fair bit of oil ten i would say you have a leak you should also be able to tell if it is leaking oil by how much smoke is blown out the exhaust.

hope i was able to help

Posted on Aug 09, 2008

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4jk1engen 2012 2.5dteq isuzu timing marks


in what country.
what Car no car name (or light truck name), ok got the 2012 , but
D-Teq is and engine not a car.
timing of cam>?
fuel pump
what,?
Btw in the USA. we dont have 2012 ISUZU here.
"Sales will stop after Jan. 31, 2009,"
so again,what country what car
try to know the books are based on what? (real or online)
1: country
2: year
3: car body.
4: engine, (and if turbo version)

why not start a post saying the job, what you did that needs timing. pulled the head?
or post to a forum in YOUR country, and get 100x faster
and for sure more accurate answers.



here is the wiki on this engine. which one????
what country.?????????
  • The 4JK1-TC is a 2.5 L (2,499 cc), 95.4 mm bore, 87.4 mm stroke common-rail direct injection 16V DOHC intercooled turbo-diesel engine. It was used in the Isuzu D-Max and first generation Chevrolet Colorado produced in Thailand. Stock power was 116 hp (85 kW) and 280N·m at1800-2200rpm.
The 4JK1-TCX is a 2.5 L (2,499 cc), 95.4 mm bore, 87.4 mm stroke direct injection electronic commonrail 16V DOHC diesel engine with a variable geometry turbocharger and compression ratio originally at 18.1:1. It was used in the Isuzu D-Max, produced in Thailand, and the related Holden Rodeo and first-generation Chevrolet Colorado. Stock power is 136 ps (100 kW) and 320 N·m at 1800-2800 rpm. The original version is still used in the South African version of the new D-Max, the Isuzu KB, and with the compression ratio reduced to 16.0:1 in the Thai-market D-Max X-series. The 4JK-1E5-TC is a twin turbo version of the 4JK1 is produced for DMAX pickups exported to Europe from 2012. Certified to the Euro5b emission standard it produces 163.15 PS/161 hp/120 kW @ 3600 rpm and 400 Nm/295 lb-ft @ 1400-2000 rpm with a 17.0:1 compression ratio.

Oct 15, 2016 | Isuzu Cars & Trucks

1 Answer

Hi. i have a 1987 supra a 1jz twin turbo was dropped in and it purrrs like a kitten exept i dont think it was tunned properly at around 6000 rpm you feel it rumble at the turbos ..its like not enough


A tuning shop is a good idea. They would be equipped to test everything out. And they should know of any modifications you may have overlooked. At least talk to them.

Nov 02, 2014 | Cars & Trucks

1 Answer

I am looking for the BEST (fastest) supra ever made STOCK. preferably twin turbo, 6 speed. What is the supra thats stock that will absolutely destroy anything?


A stock anything will not be the fastest thing around. I've seen some pretty wicked 1100+ supras though. Your answer in part would be the 98 tt supra it will run a quarter mile in about 13.3 seconds

Feb 05, 2011 | Toyota Supra Cars & Trucks

1 Answer

HI I have an 89 supra with a blown 3ltr turbo I would like to know if the 1jz twin turbo will fit on my 5 speed and will my inter cooler work with it do i need different engine mounts


yes the tranny will work and you need the 1j engine mounts as they are different. the 7mgte mounts will not allow the exhaust manifold to fit with the down pipe. your intercooler will work fine although i recommend replacement since you loose pressure if this is an original unit. hope this helps. please rate.

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What feeds the boost gauge? On my 87 Supra Turbo, my boost gauge isn't working properly. Is it vacuum operated? Or are it's readings supplied by the MAF or MAP?


The boost gauge is fed by the Turbo. It tells you how much extra air the turbo is putting into your engine. This is turbo ONLY. Usually a little plastic line from the turbo to the gauge.

Mar 05, 2010 | Toyota Supra Cars & Trucks

1 Answer

Mk3 Supra Turbo Boost Gauge Problems


The gauge is working fine, the turbo will not kick in untill the engine is spinning fast enough, as the turbo is propelled by exaughst from the engine. So, you can drive around normal and never use the turbo, and climb in the gas and spool the turbo up, what you are noticing is called turbo lag, which is the biggest down fall when compaired to superchargers!

Feb 23, 2010 | Toyota Supra Cars & Trucks

1 Answer

How do i install a t70 turbo to a 1987 toyota supra turbo 7mgte 3.0


you will need an additional turbo manifold. I have the correct one its for sale right now on eaby. The ct26 turbo manifold does not allow for proper mounting. I can include directions with the manifold

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1 Answer

Engine compatible


Yes. However it is a very expensive swap $5000 to $8000 to do it right. You will need the 1J or 2J engine, transmission, wiring harness, ecu, and alot of other pieces to do the swap. The engine brackets will need to be modified and you will have to upgrade your brakes. This kind of swap requires a good knowledge of the Toyota Supra and the engines. I do not recommend this swap for a beginner. A cheaper way is to take a 7M-GTE and upgrade the internals and turbo.

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2 Answers

Can I use a non turbo head on a turbo?


Yes the heads are interchangable. Best way to find out if stuff is interchangable is to go to Toyota dealer and compare part #'s

Nov 30, 2008 | 1989 Toyota Supra

2 Answers

1991 Toyota Supra Turbo


get an aftermarket blow off...hks, greddy

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