MrMopar64 wrote:
The old 2.8 was a wastegated turbo. That turbo was/is the same as the 2.5L turbo.
Good to know, especially for tony
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| 2.8 turbo on a 2.5? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=37230 |
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| Author: | tonycrd [ Mon Nov 10, 2008 4:12 pm ] |
| Post subject: | 2.8 turbo on a 2.5? |
You think this would work? I'm tinking about doing it, old series '02-'04 2.8 turbo on my 2.5. It should spool up earlier.... I may need a blow of valve? |
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| Author: | RTStabler51 [ Mon Nov 10, 2008 5:09 pm ] |
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I'm not that familiar with either engine when it comes down to nitty gritty details, but can the 2.5L control the variable vanes on the 2.8L turbo? |
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| Author: | tonycrd [ Mon Nov 10, 2008 5:18 pm ] |
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Now there's the trick, the old 2.8 doesn't have variable vanes.... |
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| Author: | ATXKJ [ Mon Nov 10, 2008 5:26 pm ] |
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isn't the vane control vacuum? - wouldn't you just need the appropriate vacuum line? |
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| Author: | Sir Sam [ Mon Nov 10, 2008 5:56 pm ] |
| Post subject: | |
ATXKJ wrote: isn't the vane control vacuum? - wouldn't you just need the appropriate vacuum line?
The VGT turbo is vacuum actuated, however there is a vacuum solenoid control which is activated by a PWM signal from the ECM. So no, it really is not that simple - but shouldn't be too hard, hopefully Mr Mopar can fill in the gap. |
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| Author: | MrMopar64 [ Mon Nov 10, 2008 8:38 pm ] |
| Post subject: | |
The old 2.8 was a wastegated turbo. That turbo was/is the same as the 2.5L turbo. |
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| Author: | Uffe [ Tue Nov 11, 2008 2:50 am ] |
| Post subject: | |
MrMopar64 wrote: The old 2.8 was a wastegated turbo. That turbo was/is the same as the 2.5L turbo.
Good to know, especially for tony
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| Author: | tonycrd [ Tue Nov 11, 2008 7:16 am ] |
| Post subject: | |
Yeah, that would then be a waste of time. |
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| Author: | DarbyWalters [ Tue Nov 11, 2008 8:56 am ] |
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If it is a mechanical wastegate...you could get a HKS or other maker (Greddy/ect.) "Wastegate Controller" which will let you hold the wastegate closed and let it bleed off at higher psi. That will give you much more bottom end. |
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| Author: | MrMopar64 [ Tue Nov 11, 2008 10:32 pm ] |
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It won't make it spool any faster, and when you make the wastegate open later and make more boost, the ECU will throw a code for boost pressure too high and then you're in limp home. |
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