Where do I find the oem forged 2.3 turbo pistons?

DCinDC · Mar 5, 2015

Time for your meds.

Ramble on.....

AllanD · Mar 6, 2015

DCinDC said:
For more power and better drivability, obviously.

This whole turbo = low compression line is BS.

My 93 Ranger had 9.4:1 compression. It was stock. I ran 18 psi on it for a long time.

On Merkur XR4tis one of the BEST mods is to raise the compression.

I was assuming that this guy has an older non dual plug head 2.3 engine. That would be 9:1. With a dual plug head and those later hyper pistons it would be 9.4:1. Any stock 2.3 turbo engine would only have 8:1.

"The one thing the Merkur XR4ti needs is more compression", Jack Roush.

But the number one reason to want higher compression is that I've done it and it works, and it costs less. Listen to those who have done things successfully. Not those who parrot what other talking heads on the internet say.

Lower compression allows more boost before detonation and less severe detonation when it does happen.

the problem is that you can't necessarily detect it until it is too late

years ago I ran s Saab 900 with a turbo

mechanical compression ratio of 7.2:1!

I could (and did) run up to 22osi of boost on that engine the only problem I had was getting enough fuel into it to keep the EGT within reason...

I was consistently making 300hp from a 121cid 4cyl!

the factory rally cars were making 375-425hp, but they had better fuel available...

Yes the later "APC" controlled engines has 8.6:! C/R but could only run 13-16psi of boost before breaking things.. and the Saab turbo engines used the best forged pistons money could buy, purpose made Mahle forgings with floated pins.

BTW, the "best mod" on an XR4TI engine is not to raise the compression, it is to swap on the head from an intercooled Thunderbird turbocoupe

the next best mod after that is to swap in a ranger roller cam and followers and get rid of the "phantom knock" phenomena
that is caused by worn sled followers that also grind up the oil pump with the metal chips from the worn cam lobes

BTW I think you quoted Jack Roushe talking about a race engine running in RACE gas

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turbo91xlt · Mar 11, 2015

DCinDC said:
You do not need forged pistons. Depending on the year of your N/A engine you may not need to change them. I know for a fact, from my own experience, that 93 ranger hypereutectic pistons will stand up to plenty of boost. These would be a higher compression which is what you want anyway.

You should tell us what year engine you are working with.

congrats

you wanna know why ford used 8:1 forged pistons?

reliability

turbo91xlt · Mar 11, 2015

AllanD said:
BTW, the "best mod" on an XR4TI engine is not to raise the compression, it is to swap on the head from an intercooled Thunderbird turbocoupe

You mean intercooler, heads are the the same :icon_thumby:

Where do I find the oem forged 2.3 turbo pistons?

DCinDC

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AllanD

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turbo91xlt

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