NewB Q: how much would it cost to do a j-spec engine swap on 93 mr2t?

[JT_mr2]

Hey, just wondering how much is would cost to buy and swap a j-spec mr2t engine into it. Im thinking of getting a mr2t.... thanks a lot.

[lokn2bimr2]

what is a J-spec MR2 turbo engine? I've seen it referred to in other places - is that something different than the stock engine?

[hugmybag]

J-spec= Japanese spec= JDM= Japanese domestic market

I wouldnt do it, had a friend who did it and it gave him nothing but trouble.

[Neal18T]

hey im new to the board 2 and im interested in this question also...

ive been trying to find the exact specs for the Jspec motor... does anyone know them? I found a couple sites but they were all in Japanese :p

anyways yeah id be interested in this also because then i can pick up a NA motor'd MR2 for cheaper and get a lower KM motor to swap in...

most of the turbo engines up for resale have very high km's 150K + ussually =(

[TRD2000GT]

Where to find an 98 Jspec engine?

[MRQtwinturbo]

the most desireable motor would be the 3rd gen motor.....i copied this from a post on the main board.....

FYI: Gen III Differences
- MAP sensor instead of AFM
- Bosch D-Jetronic (Gen III) vs. L-Jetronic (relatively primitive) engine management
- CT20b turbo replaces CT26
- Boost raised from 10psi to 13psi
- Fuel cut raised from 12 psi to 18 psi
- Different ECU
- 4 wire O2 sensor
- Shim under bucket valve shims
- slightly more aggressive cams
- Revised internals (pistons, con-rods etc.)
- Revised cylinder head cooling passages/water jackets
- Revised intake manifold (8 'independent long ports' reduced to 4)
- intake manifold inlet air temperature sensor added. i.e. after turbo and intercooler.
- Revised gearbox with close ratio gearing
- lower compression ratio
- stainless steel head gasket
- factory 540cc injectors replace 430cc injectors
- revised fuel rail with bigger bore and relocated pressure regulator
- TVIS eliminated
- EGR eliminated
- LSD in 80% of them
- throttle body increased from 55mm to 60mm
- inlet valve lift increased from 8.2 to 8.7
- intake manifold inlet air temperature sensor added
- Less restrictive exhaust elbow
- Aluminum oil pan
- more rigid alloy sump and additional oil baffles
- Factory Catch can
- Better Oil Cooler and relocated oil filter (bottom)
- 4 Channel ABS coupled with Traction Control available
- No. 1 compression ring described as 'stainless steel' instead of just 'steel'. Oil ring is described as 'stainless steel' instead of 'a combination of steel and stainless steel'.

[mr2freak]

gen 3 is between 240-250 hp, with 200 lbs of torque
it would come to about 5 gran

[Nateness]

I've seen that Neishlin Motors sold a few GenIII halfcuts for around the low $3k range... i'd think that $5k would be for installed, right? Though I heard some talk in the IMOC that the block casting on the GenIII was "cheaper" than the casting on the GenII block.. but that was off a 3S-GTE on a Celica GTS w/ GenIII

[Daz]

First Gen: 88-89 : 180hp, celica all-track
Second Gen : 91-95 200hp 200 torque in celica all track + mr2 turbo
Third Gen: 96-99 : 245 hp 240 torque in mr2 and all-track outside of america, where that engine stoped to be imported

The j-spec engine Second Gen got 225 Hp and 220 torque