98 XC vs T5 vs R engine and drive system

Post by **CIK7** » 12 Jul 2020, 18:15

does the 98 R model have same AWD system as the XC? I understand the T5 is FWD. should I be able to fit a 2.3 from a T5 or R into my XC?
what items (ECU, etc) would I want to move over from the donor car? I found a T5 motor on eBay from a salvage yard.

Post by **Chuck W** » 12 Jul 2020, 18:54

The T5 motor will fit, and the T5 ECU would work, but it's probably not going to be ideal for the AWD. Who knows.

The '98 V70R ECU (-455) would be an option, but you'd want to upgrade the turbo and injectors to that spec. They are also hard to find. Both the T5 and the V70R are HPT engines.

Post by **FLXC90** » 12 Jul 2020, 21:15

And the reason they would be less ideal is torque. The GLT/XC Low pressure turbo spools faster to deliver low to midrange torque to get you moving. The T-5/R has a smaller displacement, lower compression ratio, and a turbo that kicks in higher, and runs higher for highway passing and top-end. Contrary to what you might want to do, using the smaller turbo and ECU on the 2.3 might be a more usable combo in your car initially.
Down the road you could look at performance improvements.

Post by **CIK7** » 12 Jul 2020, 21:42

Chuck W wrote: ↑12 Jul 2020, 18:54 The '98 V70R ECU (-455) would be an option, but you'd want to upgrade the turbo and injectors to that spec. They are also hard to find. Both the T5 and the V70R are HPT engines.

yes that's what I'm aiming for. Go big or go home! lol btw the engine for t5 and r are the same. 2.3L with 236hp/243tq the r has AWD though. but is the AWD on the XC and R the same?

Post by **Chuck W** » 12 Jul 2020, 22:19

The '98 V70R AWD is not the same tune as the T5 or the FWD R. It should be a B5234T4 with an 18T turbo on it.(247hp/260tq) -455 ECU code (Last 3 digits). The engines themselves would be the same, but the turbo/injectors/tune are different. It depends on whether it's the B5234T3 or B5234T4.

For the same year, yes the AWD systems would be the same.

What is the engine you found on ebay?

Post by **CIK7** » 12 Jul 2020, 22:55

Chuck W wrote: ↑12 Jul 2020, 22:19
What is the engine you found on ebay?

'vin 53, 6th and 7th digits' 2.3 from a 98 s70 t5. same with the other engine, 98 V70 t5.

Post by **Chuck W** » 13 Jul 2020, 05:14

They don't list the engine B-code in either ad?

Post by **Chuck W** » 13 Jul 2020, 08:14

I'm still confused, if this is going to be your "driver" car and you're going to build a Hi-Po 850, why not just get another LPT motor, N or RN and call it a day?

Post by **CIK7** » 13 Jul 2020, 13:20

Chuck W wrote: ↑13 Jul 2020, 08:14 I'm still confused, if this is going to be your "driver" car and you're going to build a Hi-Po 850, why not just get another LPT motor, N or RN and call it a day?

I may have forgotten to tell you that I may have decided to just buy a motor for this car. difficult to find another 98 SV70 or 850.