Revup Forced Induction Guys......plenum spacer or no spacer???
03-14-2007, 06:42 AM
#4
Jeremy,
I do have a 5/16" spacer, but I was wondering if anyone ever tested a spacer out on a F/I Revup application.
From what I have heard, a spacer does nothing on an N/A revup motor. I have the spacer from when I was using the MREV2/spacer setup.
I guess we need to set up that intake manifold shootout.
I have a:
1) Revup Plenum
2) MREV2 Plenum
3) 5/16" spacer
I have access to a ported Revup Plenum, too.
What do you have?
stock 287 plenum?
your "shorty" plenum?
skunk2 spacer?
I do have a 5/16" spacer, but I was wondering if anyone ever tested a spacer out on a F/I Revup application.
From what I have heard, a spacer does nothing on an N/A revup motor. I have the spacer from when I was using the MREV2/spacer setup.
I guess we need to set up that intake manifold shootout.
I have a:
1) Revup Plenum
2) MREV2 Plenum
3) 5/16" spacer
I have access to a ported Revup Plenum, too.
What do you have?
stock 287 plenum?
your "shorty" plenum?
skunk2 spacer?
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03-14-2007, 02:06 PM
#9
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Originally Posted by QuadCam
From what I have heard, a spacer does nothing on an N/A revup motor. I
I did a before/after dyno of an AAM Spacer install on my Rev-up Z. I gained 5whp all across the board.
03-14-2007, 02:53 PM
#12
Originally Posted by Mid117
False.
I did a before/after dyno of an AAM Spacer install on my Rev-up Z. I gained 5whp all across the board.
I did a before/after dyno of an AAM Spacer install on my Rev-up Z. I gained 5whp all across the board.
You can do back to back dyno runs and pick up gains like that.......I've seen it before.
03-15-2007, 05:53 AM
#15
I don't think a spacer alone on a FI set up will do much of anything on a REVUP lower collector.
But I'd like to see the MREV2/spacer combo tested on a FI REVUP.
Alberto (and others) have tested the 287 lower plenum (with a spacer or crawford upper) on their FI 287 engine and then tested the same set up with a REVUP lower collector.
Apparently the REVUP lower collector loses power everywhere on the curve when on a FI 287 engine.
The result will most likely will hold true on a FI REVUP engine, but it still needs to be tested.
I would have tested this myself but I don't have FI
But I'd like to see the MREV2/spacer combo tested on a FI REVUP.
Alberto (and others) have tested the 287 lower plenum (with a spacer or crawford upper) on their FI 287 engine and then tested the same set up with a REVUP lower collector.
Apparently the REVUP lower collector loses power everywhere on the curve when on a FI 287 engine.
The result will most likely will hold true on a FI REVUP engine, but it still needs to be tested.
I would have tested this myself but I don't have FI
Last edited by Hydrazine; 03-15-2007 at 05:56 AM.
03-15-2007, 06:03 AM
#16
Originally Posted by Hydrazine
I don't think a spacer alone on a FI set up will do much of anything on a REVUP lower collector.
But I'd like to see the MREV2/spacer combo tested on a FI REVUP.
Alberto (and others) have tested the 287 lower plenum (with a spacer or crawford upper) on their FI 287 engine and then tested the same set up with a REVUP lower collector.
Apparently the REVUP lower collector loses power everywhere on the curve when on a FI 287 engine.
The result will most likely will hold true on a FI REVUP engine, but it still needs to be tested.
I would have tested this myself but I don't have FI
But I'd like to see the MREV2/spacer combo tested on a FI REVUP.
Alberto (and others) have tested the 287 lower plenum (with a spacer or crawford upper) on their FI 287 engine and then tested the same set up with a REVUP lower collector.
Apparently the REVUP lower collector loses power everywhere on the curve when on a FI 287 engine.
The result will most likely will hold true on a FI REVUP engine, but it still needs to be tested.
I would have tested this myself but I don't have FI
