1jz single turbo

1jz single turbo

Female AN4 on both ends. It is illegal to sell, install, or offer for sale any aftermarket part that alters or modifies the original design or performance of the motor vehicle pollution control system. All parts are for use on a vehicle that will NEVER be used, or licensed, or registered for use upon a street and highway.

All parts are for used on a vehicle that will NEVER be used, or licensed, or registered for use upon a street and highway. These products may contain chemicals known to the State of California to cause birth defects or other reproductive harm. For more information visit www. Qty Add to Cart. Emissions Control Warning: It is illegal to sell, install, or offer for sale any aftermarket part that alters or modifies the original design or performance of the motor vehicle pollution control system.

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By clicking any link on this page you are giving your consent for us to set cookies.The JZ engine family has become one of the most popular Toyota engine families and, probably, the most wide-known one among the engines from all over the world.

The JZs became famous due to its amazing flexibility to performance tuning. The JZ engines included two motors: one of them was a 2. The 1JZ engine is a 6-cylinder serie engine with an cast iron cylinder block. The cylinder head is fitted with two camshafts and 4 valves for each cylinder.

An ACIS variable-length intake manifold was provided for that engine. Since the 1JZ was improved with a cylinder head, VVTi variable valve timing system on the inlet camshaft, and an cooling system changed, etc. The 1JZ is fitted with a toothed timing belt that should be replaced each 60, mileskm of mileage.

In the 1JZ production came to a halt. The first type was introduced till with the 10 compression ratio. Compression ration rose to It has got new pistons fitted to 8.

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Moreover, it was improved with a Yamaha kind of a cylinder head. In the motor was upgraded. The engine was also added with a VVTi system and compression ratio rose to 9. It is caused by spark plugs. You must screw them out and dry. It is susceptible to frosts. You should take that in consideration.

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It is resulted by the above-mentioned things. Check the ignition coils. Rough idle. The VVTi valve must be replaced and everything will be sorted out.

Comprehensive tuning guide

Other causes are the following: bad idle control valve sensor and throttle body. Cleanse them and everything will get sorted out. High fuel consumption in the 1JZ. If any, you need to check the oxygen sensor and MAF sensor.

JZ Single Turbo Oil Line Kit

Knocking sound.Maybe you just want to learn more about the JZ engine family. As you may have guessed, the 1JZ came before the 2JZ, and it came in a few different forms. Regardless of the engine dressings, it was always a 2.

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The 7MGTE was a great engine, but it suffered from numerous cylinder head issues. The 2JZ shares most of the components from the 1JZ, the biggest difference in the displacement.

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The 2JZ retains the 86mm bore that the 1JZ has, but its stroke is increased from This provides a better equal medium between low-end torque and high-end horsepower. One turbo gives low rpm power, the second turbo comes on at a later RPM to increase power in a very linear fashion. After hours of searching through forums, I found the most stock dyno graphs possible. Both use 91 octane, stock everything, and non-tuned. Notice how the 1JZ dyno graph shows the horsepower continually going up.

This is great for track use. The power is predictable when getting on and off of the throttle. This is great for street use because power is available when you need. I can tell you that they respond to modifications nearly identically. The 2JZ, of course, will make a little bit more power and torque thanks to its extra displacement.

How to engine responds greatly depends on the size of the turbo. Generally speaking, a 2JZ making whp is going to respond better the throttle inputs than a 1JZ making similar power. This is once again a great attribute of the increased stroke of the 2JZ. Parts are nearly identical in price as well. The most commons upgrades would be a single turbo setup. The factory turbos have issues when the boost is turned up at all. Contrary to what most people believe, the 1JZ and the 2JZ are pretty much equally as strong.

Their connecting rods are identical other than the length since the 2JZ has a longer stroke. The crank and pistons are pretty much equally as strong as well. The reason most people think that the 2JZ is stronger is that it can hold up to higher power levels. But, they fail to account for the extra displacement. Generally speaking the 1JZ stock bottom end is good for about horsepower, and the stock 2JZ bottom end is good for about horsepower. You would think that the 2JZ would be stronger than right?

Both are some of the strongest factory engines to ever come in a production automobile. Very few engines in the world can hold up to 1, horsepower or more. Being cool and unique is something that can be underrated in the automotive world. But, what about the 1JZ and the 2JZ? Rarity is arguably the biggest part of the cool factor.

In regards to rarity, the 1JZ is rarer here in the US. This is because we never actually got it in any of our cars. The sound is also something fairly important to how cool these engines are. In the case of the 1JZ and the 2JZ, they sound extremely similar. This is probably due to them being mostly the same.Remember Me? What's New? Results 1 to 12 of Thread: 1JZ single turbo conversion tips. Thread Tools Show Printable Version.

I need some tips before I dive in this sat. What size restrictor do I need? Or Garrett has a built in restrictor? Which oil supply hole best to use? Front or back? I think my oil drain us bit small, about under 10mm diameter, will it suffice? All helps are welcome Cheers. Re: 1JZ single turbo conversion tips Hey mate, what sort of oil feed line do you plan to use? A braided teflon hose?

If so, Motorsport Connections sell restrictors to suit the Garrett BB turbos that slip in to the hose end. Without this I had a little bit of oil finding its way into the exhaust under certain conditions with a GT Much of a muchness as to which oil feed hole you use, depends on which has the neatest path for the hose to run to the turbo I guess.

Cheers Phil. Re: 1JZ single turbo conversion tips I ran my 2J originally with no restrictor in a -4 teflon feed line to a GTr which apparently has an internal restrictor. There was a little oil smoke at high rpm with no restrictor. My turbo uses a -4 to tapered fitting straight into the turbo, and I simply fitted a 0. No more smoking at any revs after the restrictor fitment. I'm running a oil drain line with no issues. Here's a pic of my feed line where you can just see the fittings:. Last edited by JP; at AM.

Re: 1JZ single turbo conversion tips I bought a oil and water kit from ebay, quality might not be that great but it works and cheap also has a restrictor in the kit, mine I think is a 0.Please make sure that the engine is cool to the touch, and if you are not sure, allow it to sit overnight to avoid any burns. Make sure that your Other supporting mods are done prior to upgrading any engine parts. With all that out of the way, we can begin! This install was done on a fairly stock engine.

The install was done by the owner of the car and we took all the pictures and gave him a little nook in the corner of the shop to install the new turbo. First you must remove all upper intake piping and heat shields. The removal is fairly simple and doesn't take long. You can clamp the coolant hoses to the turbo with two needle nose vice grips and two rags to avoid damaging the rubber hoses. Remove o2 sensor and set it aside in a safe place.

Remove downpipe and also any other factory turbo parts that will not be used. Keep all heat shields as the new Turbo will be able to retain all factory heat shields! Quick view of the manifold off. If you remove all the studs, you will be able to pull the turbo and manifold together as one. Remember to disconnect the drain, oil feed banjo bolt and also any turbo brackets that attach to the block.

For the new turbo, make sure you install all the Studs supplied with it before you install the turbo.

Install coolant banjo bolt and fitting with hose installed before you install turbo. Make sure oil feed and water line is lined up like in the picture. This side goes against the block.

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Along with the the hard line adapter. Make Sure you line it up just line the picture. Remember that these are AN Army-Navy and don't need a lot of torque. Use two wrenches to tighten the hard line and soft line. Don't twist the hardline or it will break!

Install oil drain with gasket. Don't bend this also. It will break or it will leak! Point the turbo oil feed down, this pic was taken before it was clocked to face 6 O'Clock. Also notice that the water neck stud was changed to a bolt.

Tomei says to grind it down or if you can't grind it down to install supplied bolt! Clever Japanese, they think of everything! Install turbo with manifold on, if you have an Outlet pipe from Tomei not included with Turbo install that before you drop the turbo in. Now install all other stock parts you took off and you are almost done. Top off oil and coolant, just in case you lost any and check for leaks once you are done and turn on the car.

I hope this blog helps you before and after you purchase this upgrade from our store. Remember, not many shops go thru all this trouble to make your purchase trouble free.

As with any other purchase, please feel free to email us or call us with any questions you may have.


After co-owning another business and not seeing "eye to eye", Tel: Email: info kaizenmotorsports.The 1JZ engine was fitted to many models of Toyota and Lexus, from family oriented models to the more sporty models such as the Supra. The 1JZ engine was a naturally aspirated 6 cylinder 2. A later turbo charged model was introduced with a GTE suffix and this makes an interesting proposition for the tuner.

It was replaced in with the 4GR-FSE engine, to help meet ever tightening emissions regulations and requirements. Whilst it is possible it is not really cost effective, especially when you can source a 2JZ or 1JZ-GTE engine with a turbo installed and drop this straight in.

If you insist on turbocharging you need to reduce the compression ratio, modify the head slightly and add an aftermarket ECU to control the fuelling and turbo. Essentially you will commit to a costly strip down and rebuild of the engine.

So it makes economic sense to do an engine swap if you are looking for forced induction rather than converting your existing engine. When talking about the best and most optimal modifications for your 1JZ engine, we are going to tuning mods that give the biggest return for your cash.

Significant gains can be made from cam upgrades. Motorsport cams, push up the high end rpm power band but as a result the car will not idle smoothly and low end power nearly always suffers.

A longer valve duration can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. Intake take the air during the suck phase from the air filter and allow it to be drawn into the engine cylinders. Structure and rate of flow of the Intake can make a noticeable difference to to fuel atomisation and engine efficiency on the 1JZ.

We often see headers are begging for aftermarket tuning parts, although a few OEM provide reasonably good headers. Fitting big valve kits, carrying out port matching and head flowing will also improve torque, the fantastic side effect is it will raise potential for a better torque increase on other tuning mods.

1jz single turbo

Fitting lower compression pistons, rods and sorting out the oil flow to the turbo are essential considerations, ideally you should also fit forged parts for added strength and resilience.

Thankfully these engines are very robust and reliable but there are a few things to look out for. The VVT System can be problematic if not properly maintained and serviced, this usually causes a rough idle at first and later misfires and non starting issues.

1jz single turbo

High oil consumption on older engines is usually down to worn valves and pistons, replace this if there is excessive smoke. You should be able to lift power to around bhp on most 1JZ engines, with the right modifications.

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Get a gas flowed cylinder head and port and polish the intake and exhaust to maximize flow through the engine. Fast road cams will give more peak power but if the profile is too aggressive you will suffer from a lumpy idle and the car will be hard to drive in traffic. A sports exhaust and high flow catalyst will also help the engine to make more power. If you balance the engine you can raise the red line and being an inline 6 this engine revs really freely and is silky smooth offering a lot of top end power.

The standard fuelling system on the 1JZ is usually good for fairly substantial power gains and, unless you are adding a turbo should be able to cope with substantial power figures from the NASP engine. A lighter flywheel will help the engine to rev more freely and we recommend fitting an uprated clutch when you start increasing the engines power beyond bhp.

We have heard of people fitting the 2JZ cams to this engine, but you'll need to hone the journals to get them to fit. Porting and gas flowing the head, and adding larger valves also prove to offer a good return of power for your investment. The turbo version of the engine is quite a different beast from the NASP engine and is a great engine to work on. If you want to go higher then you need a standalone ECU replacement or high quality piggyback ECU, we quite like the Greddy E manage Blue setup, thanks to it's flexibility and processing power and makes adding an aftermarket air flow sensor quite easy.

There are many people spending a loads on turbo upgrades on the 1JZ only to suffer the humiliation of seeing the 1JZ go up in smoke when it's been completed.

Larger turbo chargers tend to suffer low end lag, and little turbo chargers spool up more quickly but won't have the peak end engines power gains. Thankfully the choice of turbo chargers is always moving on and we commonly find variable vane turbo chargers, where the vane angle is altered according to speed to lower lag and increase top end bhp. Twin scroll turbo chargers divert the exhaust flow into 2 channels and feed these at differently angled vanes in the turbo charger.

They also increase the scavenging effect of the engine. We note 4 bar air sensors coping with quite large power gains, whereas the OEM air sensor was restricting bhp at a much lower level.

Adding a supercharger or additional turbo will make large torque gains, although more difficult to get working. We have this adding a twincharger setup guide if you want to read more. Adding a bigger turbo and good quality boost controller will take you to around bhp for 1.Click to Enlarge. Item :. No Yes please! Send to a Friend. We know our customers need to save a little extra whenever possible, so we have introduced our "Make an Offer" feature!

Here is how it works. You will have a maximum of three bids, that we review instantly. If accepted you win and can immediately buy the product at that price. Don't worry, if you don't win we will make you an instant offer to buy it now. Another way to help you save big with SupraStore. Product Description. As you know by now, no one makes a comprehensive 1JZ for a value that isn't Chinese based. We make our own, and better! ProSeries turbo kits are designed around our amazing turbo manifold, which are available in many different configurations: Street, and Stages 1 through 4.

We looked at anything and everything from old school Japanese kits outdated, horrible spooling turbos, expensive!! The idea behind this kit is simple: HPgood spool, and daily driver characteristics. Great for automatics! It uses the best products, make as much usable power as possible, and offer the lowest cost possible.

Drives as well if not better than stock, except it rips off HP at 22psi! The kit utilizes the ProSeries in-house developed stainless steel T4 turbo manifold.

Both hold boost control outstandingly well. We worked together with our turbo masters at Precision Turbo USA designed and built and our 15 years of 2JZ experience to spec a working-class turbo, from a world-class manufacturer.

Do not let the term "entry-level design" fool you. They are robust, make great power, and are easy to service. Precision Turbo are powering many of the world's fastest Supras and other cars, and are manufactured in the USA. If you need a down pipe, no problem, we can fabricate one for you.

As with all single turbo kits, you will need a midpipe after down pipe to connect to your exhaust and one intercooler tube to go from turbo to your current intercooler. You may also be interested in. Related Items. Contact Us Sitemap Shopping Cart.

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