My swap Questions thread

[BJ91T]

I have a few questions about a 1j/1.5j that I needed answered so I figured I should throw them all in one thread and hopefully solve my problems.

1.)If I decide to go 1.5JZ down the road can a 2jz-ge Block be used without mods to the head/or block?

2.)I plan to run Stinger standalone, Does it have a built in wideband 02 or will I need a seperate wideband? I see that driftmotion offers a Bosch LSM-II Sensor for the stinger but I would really like a constant display on my dash just to be safe.

3.) Im looking at a MTR manifold for the 1J and I was wondering what I could expect as far as spool time and overall power using a mtr mani and a GT4067 turbo with the 1.5 JZ setup. The engine will be close to stock comp I since i plan to run the 1.5 with a stock 1j MHG.


I am sure I will have more questions as my build sheet grows, Thanks in advance for the help its greatly needed.

BJ

 

[BJ91T]

anyone?

 

[annoyingrob]

1) yes, but it would be a good idea to swap in turbo pistons, or atleast put a thicker head gasket on it to lower the GE's comrpession.

3) Expect about a 500rpm drop in spool. And no, your 1.5JZ Won't be close to stock compression with GE pistons.

 

[BJ91T]

i plan to run forged tt pistons in the ge block if i do it


BJ

 

[p5150]

i plan to run forged tt pistons in the ge block if i do it


BJ

Why would you run TT pistons? The only difference is a slight change in shape. The material is exactly the same. You will have to get a different head gasket to get the 1j head to work anyway, so just leave the GE block alone and get the appropriate head gasket for your 1j head.

 

[tlo86]

Why would you run TT pistons? The only difference is a slight change in shape. The material is exactly the same. You will have to get a different head gasket to get the 1j head to work anyway, so just leave the GE block alone and get the appropriate head gasket for your 1j head.

compression related?

 

[p5150]

The engine will be close to stock comp I since i plan to run the 1.5 with a stock 1j MHG.
BJ

How do you know that? Did you measure out the block and head or are you going off of what somebody else said?

I think it would be a really bad idea to swap in turbo pistons but thats just me. The pistons that come with the GE block are already mated to the bore. There is no guarantee that when you put the GTE pistons in that they will have the correct clearance which means that you would have to purchase bigger pistons and bore the motor.... You would also have to put in new piston rings and re-hone the bore to get it to seat correctly because the rings out of the GTE will be mated to its original engine. If you really want a set of turbo pistons then go ahead and buy a GTE short block because it will be more cost effective after you consider machine work (honing, balancing, cleaning and inspection), the purchase of the GE block and GTE pistons.

GTE pistons are not forged, they are pressure-cast aluminum just like the GE pistons.