Exactly right. The MREV2 is just a lower collector from a non rev up motor (03-04) that Tony modified. The MREV2 gives the guys with an 03 or 04 a little bit more. You can use the MREV2 on both motors. As far as stacking them (MREV2 + 5/16 spacer + Crawford) it doesn't help in fact the opposite. If I remember correctly it introduces too much air and the pressure drops inside the intake. Ask Tony for clarification. So you guys with 05-06 rev up motors the MREV2 + spacer or Crawford = Maximum gain. Guys with 03-04 non rev up motors a spacer is good by itself but to get the maximum, you need to get the MREV2 also. Am I helping or confusing you guys???

 

lol..this is 2 funny...i think everyone is just confusing everyone...haha...im jsut wondering about the rev up motor....what is the best gains as far as spacer or mrev or plenum... so far i think the mrev 2 is the best option...

is there anyone here who jsut has a spacer on a rev up ???

 

In all the MREV testing I've done, the greatest area under the curve (gains) came from the 5/16" spacer. The 1/2" spacer made a little more peak power, but the gains everywhere else were not as much.

I've also found that the 1/2" spacer and the Crawford V5 both perform very similarly. Almost identical. So you could expect the V5 to do the same on the MREV2.

Tony

 

Okay Tony. So I have an 04' with a crawford V5. Would I get better gains if I installed an MREV2?

 

Only about 2-6 HP more at various parts of the curve, and that is if your A/F is within nominal.

 

i got the skunk2 but i have to install it still