New to the club and need help...
#1
Pit Crew
Thread Starter
New to the club and need help...
Hello Club members,
This is my first post so go a little easy on me LOL. Ok so this is my situation I just bought my SC with about 186K Miles on it its a AT and i'm considering doing a 2JZ-GTE USDM manual engine swap. Now the obvious question to ask would be Which is the best engine for an SC... 1JZ-GTE, 2JZ USDM or 2JZ JDM. I understand the 1JZ is very torque happy and is a lighter engine, the USDM 2JZ is apparently the best cause it has steel turbos and lots of durable internal engine parts that could help when tuning or boosting higher than stock. and the 2JZ JDM which has the ceramic turbos which I understand are faster spooling and smaller than the USDM which makes for quicker response but the durability could be a problem if I decide to tune. Which do yall pefer?
Ok my next question is out of the 3 engines I listed which would be better suited for daily driving because at this point I might do the swap and have a nice clean DD for a while and eventually just buy a supra. Im looking for reliability as far as which one requires minimal maintenence with Daily Driving and easily accessable part base.
Ok and last question is difficulty of performing the swaps... Which swap would be the most difficult to perform with a mechanic and myself. I have access to a full garage and have all the tools I need to perform the swap. Does anyone have any tips or sites or even guides I can buy that could assist with any of the swaps? Because I had a few questions regarding:
1JZ-
* General cost and availibility concerns with the parts for the engine incase I need to replace the parts.
* Should I replace the ceramic turbos or keep the stock ones.
* Could this engine pass SMOG texting equipment with minimal modification seeing as its a JDM engine?
2JZ USDM-
* Could I keep the bottom end of the Stock 2JZ-GE and just get a TT Short block and install it?
* What are my transmission options and which do you pefer... 6 Speed Getrag or 5 Speed?
* Is turboing the stock GE as reliable as everyone says it is and could it be possible to just switch and swap the TT from a GTE to a GE considering the engine is so similar.
2JZ JDM-
* Is it really worth it to perform this swap and is it difficult to do this swap considering one engine is LHD and the other is RHD?
* Could this engine pass SMOG texting equipment with minimal modification seeing as its a JDM engine?
* Is there anyway to keep this engine street legal?
* Would the ceramic TTs be a problem in a dry and hot atmosphere such as a desert?
Thank you for all of your help in advance! and I hope after all this I can be of some help also...
This is my first post so go a little easy on me LOL. Ok so this is my situation I just bought my SC with about 186K Miles on it its a AT and i'm considering doing a 2JZ-GTE USDM manual engine swap. Now the obvious question to ask would be Which is the best engine for an SC... 1JZ-GTE, 2JZ USDM or 2JZ JDM. I understand the 1JZ is very torque happy and is a lighter engine, the USDM 2JZ is apparently the best cause it has steel turbos and lots of durable internal engine parts that could help when tuning or boosting higher than stock. and the 2JZ JDM which has the ceramic turbos which I understand are faster spooling and smaller than the USDM which makes for quicker response but the durability could be a problem if I decide to tune. Which do yall pefer?
Ok my next question is out of the 3 engines I listed which would be better suited for daily driving because at this point I might do the swap and have a nice clean DD for a while and eventually just buy a supra. Im looking for reliability as far as which one requires minimal maintenence with Daily Driving and easily accessable part base.
Ok and last question is difficulty of performing the swaps... Which swap would be the most difficult to perform with a mechanic and myself. I have access to a full garage and have all the tools I need to perform the swap. Does anyone have any tips or sites or even guides I can buy that could assist with any of the swaps? Because I had a few questions regarding:
1JZ-
* General cost and availibility concerns with the parts for the engine incase I need to replace the parts.
* Should I replace the ceramic turbos or keep the stock ones.
* Could this engine pass SMOG texting equipment with minimal modification seeing as its a JDM engine?
2JZ USDM-
* Could I keep the bottom end of the Stock 2JZ-GE and just get a TT Short block and install it?
* What are my transmission options and which do you pefer... 6 Speed Getrag or 5 Speed?
* Is turboing the stock GE as reliable as everyone says it is and could it be possible to just switch and swap the TT from a GTE to a GE considering the engine is so similar.
2JZ JDM-
* Is it really worth it to perform this swap and is it difficult to do this swap considering one engine is LHD and the other is RHD?
* Could this engine pass SMOG texting equipment with minimal modification seeing as its a JDM engine?
* Is there anyway to keep this engine street legal?
* Would the ceramic TTs be a problem in a dry and hot atmosphere such as a desert?
Thank you for all of your help in advance! and I hope after all this I can be of some help also...
#2
Lexus Champion
iTrader: (-1)
The 1JZ can make 400+whp all day every day without much coersion: slap on a 61-63mm single turbo with a decent fuel system and you are there. The 2JZ obviously has the displacement advantage, so it can make more power. The other advantage to the 2JZ is the plentiful support in the aftermarket since the Supra had the same motor.
In general, if you want more than 400whp, go with the 2JZ. Otherwise, you could have had the same power for less money with the 1JZ. This excludes the case where you turbo the stock motor, which is almost always the least expensive option to make decent power.
I understand the 1JZ is very torque happy and is a lighter engine, the USDM 2JZ is apparently the best cause it has steel turbos and lots of durable internal engine parts that could help when tuning or boosting higher than stock. and the 2JZ JDM which has the ceramic turbos which I understand are faster spooling and smaller than the USDM which makes for quicker response but the durability could be a problem if I decide to tune. Which do yall pefer?
The ceramic turbos on the JDM 2JZ are only faster spooling because they are smaller than the USDM variety. Ultimately, this difference is negligible. The steel/ceramic issue is the most notable when it comes to the turbos on the different motors. The ceramic turbos take a crap anywhere north of 14psi, whereas the steel turbos can take 18psi all day every day.
Internally, all of the JZ motor are extremely similar and very stout. Even the GE motor in your stock SC has internal components fully capable of standing up to enormous horsepower numbers in excess of 700whp: it has been done numerous times.
Ok my next question is out of the 3 engines I listed which would be better suited for daily driving because at this point I might do the swap and have a nice clean DD for a while and eventually just buy a supra. Im looking for reliability as far as which one requires minimal maintenence with Daily Driving and easily accessable part base.
If you are going to swap a GTE motor into your SC, do it because you want your SC to be a beast. The SC is so similar to the Supra that you are silly to build up an SC to save money to buy a Supra. The SC can do everything the Supra can performance wise, but with more refinement and class.
As for which motor is more reliable, they are all freaks in this department. They are well engineered Toyota motors than can take a pounding for many tens of thousands of miles.
Ok and last question is difficulty of performing the swaps... Which swap would be the most difficult to perform with a mechanic and myself. I have access to a full garage and have all the tools I need to perform the swap. Does anyone have any tips or sites or even guides I can buy that could assist with any of the swaps?
If you are going to go through the trouble of removing your stock turbos on a 1JZ, you are best off swapping for a single turbo. The sing turbo will work more efficiently, make more power, make less heat, and be able to spin well in excess of 12-14 psi (where the stock ceramic turbos start getting into the danger zone). Performing a steel conversion on the stock 1JZ turbos would be effective, but the money is more well spent on a single turbo to amek more power more easily.
The 5spd options are the stock W58 (good for ~375wtq) and the R154 (good for ~600wtq). The R154 is the best option if you want big power, but adapting a MK3 Supra R154 to the SC is difficult, and finding a Soarer R154 is nearly impossible. If you want to stay under 400whp, the W58 will do you good all day every day with a sticky clutch and no drag launching.
---------
If I were you, I would decide whether you want to use the SC in the interim to save up for a Supra or not. If you only want the SC in the interim, then keep it stock and save up your money. If you want to build up the SC (smart since it does all the Supra can with less invested from the start), then consider a swap. It will be the easiest way to turn back the clock on your stock motor.
#3
Pit Crew
Thread Starter
Amazing... Thank you so much... I have pretty much made my decision... Im going to do the 1JZ Swap and replace the turbos with the USDM TTs... I basically want to get my bang for the buck with the SC and have a clean/slick ride meanwhile having Supra power... Thank you so much and Ill be sure to search the forums throughly before my next post.... If anyone else has an opinion it would greatly be appriciated...
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