[TurboMiata]

I was in a argument with a couple of friends on this. One says all DET motors come with Piston squirters, and one says only Some high compression NA motors, and GTiR motors come with them. One has a BB DET and he says he saw squirters in there when he rebuilt the botom end. Just wanted to put a end to this. Thanks.

 

[Scarpa]

I thought it was just GTiR motors.

 

[Nick]

here is a clip from se-r.net

here are several versions of both the SR20DE and the SR20DET (Remember 'T' is for Turbo).
While the engines are similar in most respects there are several differences.

Mike Kojima commented:

Here are the differences between the DET and the DE:

The DET has oil squirter piston coolers
The DET has a bigger oil pump.
The DET has a different front pulley.
The DET has lower compression pistons (8.3:1 vs 9.5:1).
The DET has bigger injectors.
The DET has direct ignition.
The DET has a variable intake cam, runs retarded at idle, advanced mid range and retarded top end. The DET has mechanical shim in bucket type lifters with a slightly bigger in duration exhaust cam.

The GTi-R DET has individual Throttle body injection.
The GTi-R DET has stronger main cap bolts.
The GTi-R DET has beefier rods.

Just about all the parts between a DET and a DE interchange.


[This message has been edited by Nick (edited 09-01-2001).]

 

[Nexidus]

Considering that the BB and GTI-R engine are supposably the same except for the three things listed I would like to know how much of a difference the individual throttle bodies make. It's cool and all, but if I would say get a BB and swap the stronger rods in and ...i know the hp gain on bolts is zero, but they are saying BB = 105ps = 102hp and the GTI-R = 120ps = 117hp is just from the throttle bodies? I noticed that BB's had 8.5:1 compression where the GTI-R had 8.3:1. Are they running more boost in the GTI-R? What's the 15hp coming from?

 

[Geo]

<font face="Verdana, Arial" size="2">Originally posted by TurboMiata:
I was in a argument with a couple of friends on this. One says all DET motors come with Piston squirters, and one says only Some high compression NA motors, and GTiR motors come with them. One has a BB DET and he says he saw squirters in there when he rebuilt the botom end. Just wanted to put a end to this. Thanks.</font>

All SR20DET engines come with piston coolers. I verified this when replacing the bearings in my BB DET.

I don't know about other Nissan engines.

There are many differences between the GTi-R DET and the BB DET. Very few parts are the same between them.

 

[TurboMiata]

Thanks.. That is what I figured. BTW my Stock Miata motor that made 116hp at the crank has piston squirters. Sometimes its nice to have Turbo Heratige in a motor (323GTX).