[Familyman]

So was having a catch up with my tame Mechanic today and he had quite a conundrum to try out on me.
He has a customer with a 250T BD that has, surprise surprise, a blown head gasket. The custy paid $2900 for the car and the work involved in fixing it won't be very far off that amount again.
dropping in a replacement is a no-go due to the problem being so common, that all the 2nd hand engines are real expensive due to high demand.
So mechanic had the thought of replacing the very prone 2.5 with a 2.0 NA of same era. But he had some questions about wiring. Will relooming need to be done to suit? Or will the 2.0 ECU plug straight in and work like a boss?

[boostin]

It's not gonna cost $3k to do head gaskets. $1k max.

If he does run the 2.0 route, just drop the motor in and go. I wouldn't be worried about the ECU/wiring thing unless it runs like a bag of shit. Use the 2.0 block and heads, and 2.5 everything else. EVERYTHING. Manifolds, sensors, wiring etc.

[rex-leggy]

boostin, on 12 December 2011 - 8:14 PM, said:

It's not gonna cost $3k to do head gaskets. $1k max.

If he does run the 2.0 route, just drop the motor in and go. I wouldn't be worried about the ECU/wiring thing unless it runs like a bag of shit. Use the 2.0 block and heads, and 2.5 everything else. EVERYTHING. Manifolds, sensors, wiring etc.

could be a job for richard.

i got a 250t engine sitting in the garage for future plans but they are getting up in price

[DacerX]

yeah should be a easier solution than putting those dam 2.5s back in there

[Drunkenmonkey]

We put a 20e in.my bros 250 t and it runs mint. swap over engine loom injectors etc and its fine

[DRFVDR]

yup as has been said a 2.0 will go as long as u do a intake manifold and sensor swap ( mainly crank and cam)
I have just done a head gasket on brothers 2.5 phase 2 engine,if it was just a gasket job would of cost about 250 for a complete head gasket set and 60 for a set of bolts.
Alas as this included bent valves it cost approx 1500 to get new valves installed,but still as his car only cost him 1500 and this job has cost about 2k ( not charging my time) his 2000 bh 250t is still a pretty good deal

[Reuben]

Keep the engine the same era, and you don't have to fuck about with intake manifolds and sensors at all.

Only thing is the 2.5's run red injectors, and 2.0's run whites, so you need to swap those reds onto the 2L - And wark away!



That said, this is all good for BG's to stay the same era, but as DRF was dealing a BH, and BH's are phase 2, and the 2L phase 2's are AVCS........ Only option there is to use an old 2L longblock, and swap all the shit over then... Bloody BH's..... But if you're working with a BG, the injectors are all you need to worry about

[boostin]

I've seen reds on 20D's....

[Reuben]

Ah, must be the 20E's with whites.

22E's come with reds too i think.

[matdaymon]

Reuben, on 17 December 2011 - 12:13 PM, said:

Ah, must be the 20E's with whites.

22E's come with reds too i think.

Yup pretty sure my 22E has red injectors

[Reuben]

Well there you go, if you get a 20D, or 22E, you don't even need to swap injectors, it's just a straight swap, brilliant.

[matdaymon]

If someone reminds me tomorrow I'll double check that my 22E has reds.

[Drunkenmonkey]

It does matt

[DacerX]

wonder how much boost a standard 2.5 would handle

[Shale]

Not a lot, and for a very short period of time. High compression low chance of headgaskets handling 100,000k WITHOUT boost

[DacerX]

I was thinking about Sti pistons and what not

[Shale]

Why don't you just get an STi 2.5 if you're gonna waste all your money on a 2.5 Less fuss less explosions in the long run (remembering of course that STi ones are semi-closed and 'standard' ones are open as a cheap hooker...with thin cylinder walls and the like)

[DacerX]

True or u dwell and sleeve like Josh and gotasuby have done

[Shale]

Yep. Long story short, you CAN boost a stock 250T motor. For about 15 minutes. It's not a worthwhile experiment IMO, given these things can't handle what they have as it is.

[DacerX]

Haha very true there momma shale