A newbie with a question to tickle your fancy...
Thread Starter
Joined: Jan 2019
Posts: 3
From: Tennessee
A newbie with a question to tickle your fancy...
This probably doesn't belong here, but the advice I received from another forum said that y'all would be more knowledgeable about this. Is there a way to sequentially mount twin turbo on a '99 2.5Lima? The word I have received is that it has never been done before. Thanks for your help and/or constructive criticism.
Banned
Joined: Jan 2018
Posts: 2,327
From: Pennsylvania
There is no need to twin-turbo a four cylinder, and it would not work right. I doubt
the Lima would handle a twin setup without a major overhaul with stronger
internals. The Crankshaft main journal sizes were reduced in '88 and on.
Roller cams were installed from 1989+ in the Ranger, then 1991+ in Mustangs.
The pistons are all the same excluding the turbo versions, which were forged low
compression (8.0:1) in the 1983 - 1888’s and high compression (9.0:1) in the 1979
- 1981’s. The 2.5 pistons have a different wrist pin height.
2.5 cranks are identical to 2.3’s except they have a longer stroke.
Turbo blocks are identical to the 1983 - 1988 Ranger blocks but have an additional boss with a
hole threaded in the passenger side about ½ way back that provides a place to drain the lubricating
oil back into the engine from the turbo.
Are we to assume you already have a 2.5 Turbo, but want to add another one?
the Lima would handle a twin setup without a major overhaul with stronger
internals. The Crankshaft main journal sizes were reduced in '88 and on.
Roller cams were installed from 1989+ in the Ranger, then 1991+ in Mustangs.
The pistons are all the same excluding the turbo versions, which were forged low
compression (8.0:1) in the 1983 - 1888’s and high compression (9.0:1) in the 1979
- 1981’s. The 2.5 pistons have a different wrist pin height.
2.5 cranks are identical to 2.3’s except they have a longer stroke.
Turbo blocks are identical to the 1983 - 1988 Ranger blocks but have an additional boss with a
hole threaded in the passenger side about ½ way back that provides a place to drain the lubricating
oil back into the engine from the turbo.
Are we to assume you already have a 2.5 Turbo, but want to add another one?
Thread Starter
Joined: Jan 2019
Posts: 3
From: Tennessee
There is no need to twin-turbo a four cylinder, and it would not work right. I doubt
the Lima would handle a twin setup without a major overhaul with stronger
internals. The Crankshaft main journal sizes were reduced in '88 and on.
Roller cams were installed from 1989+ in the Ranger, then 1991+ in Mustangs.
The pistons are all the same excluding the turbo versions, which were forged low
compression (8.0:1) in the 1983 - 1888’s and high compression (9.0:1) in the 1979
- 1981’s. The 2.5 pistons have a different wrist pin height.
2.5 cranks are identical to 2.3’s except they have a longer stroke.
Turbo blocks are identical to the 1983 - 1988 Ranger blocks but have an additional boss with a
hole threaded in the passenger side about ½ way back that provides a place to drain the lubricating
oil back into the engine from the turbo.
Are we to assume you already have a 2.5 Turbo, but want to add another one?
the Lima would handle a twin setup without a major overhaul with stronger
internals. The Crankshaft main journal sizes were reduced in '88 and on.
Roller cams were installed from 1989+ in the Ranger, then 1991+ in Mustangs.
The pistons are all the same excluding the turbo versions, which were forged low
compression (8.0:1) in the 1983 - 1888’s and high compression (9.0:1) in the 1979
- 1981’s. The 2.5 pistons have a different wrist pin height.
2.5 cranks are identical to 2.3’s except they have a longer stroke.
Turbo blocks are identical to the 1983 - 1988 Ranger blocks but have an additional boss with a
hole threaded in the passenger side about ½ way back that provides a place to drain the lubricating
oil back into the engine from the turbo.
Are we to assume you already have a 2.5 Turbo, but want to add another one?
Banned
Joined: Jan 2018
Posts: 2,327
From: Pennsylvania
You'd be better off replacing it straight up with a 2.5 Turbo engine. The work and
time to build it for a turbo, would cost more than a swap.
I would also think a bigger turbo, instead of two, would be the way to go. The VW EA888
Gen3s get bigger turbos on the 2.0 than the 1.8, and the 2.0 is 210 HP, the 1.8 is 170 HP
with the smaller turbo. They're the same block, the 1.8 is a shorter stroke. If you were to
use the 1.8's turbo on the 2.0, you won't get 210 HP from it. So, they have the bigger turbo on
the 2.0 engine.
time to build it for a turbo, would cost more than a swap.
I would also think a bigger turbo, instead of two, would be the way to go. The VW EA888
Gen3s get bigger turbos on the 2.0 than the 1.8, and the 2.0 is 210 HP, the 1.8 is 170 HP
with the smaller turbo. They're the same block, the 1.8 is a shorter stroke. If you were to
use the 1.8's turbo on the 2.0, you won't get 210 HP from it. So, they have the bigger turbo on
the 2.0 engine.
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