287 hp vs. 300 hp
Originally Posted by Archbishop

Using parts that actually help your car breath at Upper RPM means you make more power overall.
Why not do some research on this forum and see what all the results were instead of pulling graphs out of the manufacture websites. People who have actually tested these know more than what you are posting.
Listen dip****. That WAS someones dyno, not Crawford's. I just posted up 3 different dynos PROVING that the MREV2 loses power above 6200rpm. It lowers the RPM when you hit peak HP as well. What have YOU proved?
Same member, Crawford manifold Dyno alone
I'm going to beat you over the head with this.
Same member, Crawford manifold Dyno alone
I'm going to beat you over the head with this.
Last edited by Archbishop; Aug 29, 2007 at 11:05 AM.
So you think because YOU said so we should believe you right? Umm no. I believe what I have tested, what I have seen others tested, etc. Even your Motordyne dyno shows only a 5hp loss.
I don't need to prove anything to someone who wants to call someone names or beat someone over the head. I suggest do some studying on this subject, or contact Tony at MotorDyne himself.
I don't need to prove anything to someone who wants to call someone names or beat someone over the head. I suggest do some studying on this subject, or contact Tony at MotorDyne himself.
You are stupid. Really. For people who want to make power, its obvious that using the Rev up manifold is the better choice. Sure the Mrev2 is a great product that fattens up the mid range, but you do lose your power were you should be gaining, in the upper rpm range.
Last edited by Archbishop; Aug 29, 2007 at 11:17 AM.
Let us go over this again.
Wrong.
Now you start to back track. I didn't know that 10whp at 7000rpm was the same as 2-5hp at 6200rpm
Now you story is 5hp at most. But as we all know, I posted over 3 different dynos that proved that statement incorrect.
Explain the dyno's I posted then. Since when was the majority always right? As I recall, a lot of people buy it, because "it provides power were I can use it in Daily Driving"
Gain the most power compared to what? Crawford Doesn't make power. Everything I posted so far must have been stuff I pulled out my ***, correct?
Originally Posted by SOLO-350Z
Sorry but you don't lose any TOP end power on a REV-up with the MREV kit.
Originally Posted by SOLO-350Z
Hmm wow, I have tested many REV-UP MREV kits. I was a Beta Tester for Motordyne. The REV-UP does not lose power hardly at all. It gains a substantial amount of power throughout the whole rpm range. I saw maybe 2-5 hp loss right at redline if you call that a loss really compared to before.
Sorry to say that graph you showed me is the worse ever dyno I have seen of a MREV kit on a REV-UP car. Something else was wrong.
Sorry to say that graph you showed me is the worse ever dyno I have seen of a MREV kit on a REV-UP car. Something else was wrong.
Originally Posted by SOLO-350Z
Like I said, you will loose about 5 hp at the most up top on a REV-UP car. I have tested many and have a ton of experience between a 04 G35 and a 05 G35 since I have owned both. The REV-UP with the MREV kit will be the faster car. You gain so much throughout the powerband that it doesn't matter if the car looses about 5 hp up top. The Average mean is way higher with a MREV kit than without. The car will be faster.
Mine peak HP with MREV kit did 255 hp and 244 TQ.
Mine peak HP with MREV kit did 255 hp and 244 TQ.
Originally Posted by SOLO-350Z
Look, you are just a new person here that has very little experience with this modification. 5hp is the norm for loss. I have dynos that show this printed. Everyone knows the MREV kit doesn't loose 10 HP up top or people wouldn't buy it. 

Originally Posted by SOLO-350Z
You know, its been proven that Headers do not do much on the VQ, and neither does the Crawford plenum. The MREV kit has shown to gain the most power.
Why not do some research on this forum and see what all the results were instead of pulling graphs out of the manufacture websites. People who have actually tested these know more than what you are posting.
Why not do some research on this forum and see what all the results were instead of pulling graphs out of the manufacture websites. People who have actually tested these know more than what you are posting.
Originally Posted by Archbishop
You are stupid. Really. For people who want to make power, its obvious that using the Rev up manifold is the better choice. Sure the Mrev2 is a great product that fattens up the mid range, but you do lose your power were you should be gaining, in the upper rpm range.
Actually you have no clue what your talking about so I am done. Anyone who THINKS the MREV Kit on a REV-UP engine isn't worth it is blinded. It is the most bang for the buck mod and has been proven to show the most power gains and 1/4 times over any other mod.
Looks like your hated pretty bad on this site for not knowing wtf your talking about.
https://my350z.com/forum/showpost.ph...&postcount=418
https://my350z.com/forum/showpost.ph...&postcount=418
Originally Posted by HDPD350Z
Power under the curve is more important than power at redline.
And I do remember one member who tracked his car said he was pulling faster speeds with the Rev-up manifold and with the Mrev2.
As for me being hated, who cares, its the Internet. If I thought a bodykit on a roadster Z was ugly, get over it. Its what I think.
https://my350z.com/forum/showthread....61#post4167161
This guy argueing that the MREV kit isn't worth it, is someone that is a ignorant a$$ on this forum. HE has proven time and time again to be nothing more than a a$$.
This guy argueing that the MREV kit isn't worth it, is someone that is a ignorant a$$ on this forum. HE has proven time and time again to be nothing more than a a$$.
Obviosily you have never owned a MREV Kit yourself and if its so bad, why were you interested in purchasing one? Yea thats right, I saw your posts. Hondas have top-end power but no TQ. They are slow as crap till they get into that VTEC range. Mid-Range and Avearage mean of power is the most important gain for any type of performance. Actually it does add power and dynos prove that and so does 1/4 times.
Originally Posted by Archbishop
Truth. I never claimed it wasn't. But Crawfords manifold gained from 5800rpm and up. I personally would prefer a mod that enhances what I already have, such as top end power. The Mrev doesn't just add power, it changes were it is delivered, at around 200+rpm lower than before, meaning you could be losing time shifting at redline.
And I do remember one member who tracked his car said he was pulling faster speeds with the Rev-up manifold and with the Mrev2.
As for me being hated, who cares, its the Internet. If I thought a bodykit on a roadster Z was ugly, get over it. Its what I think.
And I do remember one member who tracked his car said he was pulling faster speeds with the Rev-up manifold and with the Mrev2.
As for me being hated, who cares, its the Internet. If I thought a bodykit on a roadster Z was ugly, get over it. Its what I think.
Originally Posted by jelly
considerably faster? definitely no. butt-dynos are usually not reliable.
it can only be one of 3 things...
1. 03-05 z's are a tiny bit faster because they're bit lighter than 06 (debateable of course)
2. 03-05s and 06s are besically same.. weight dif. and hp dif. sorta cancel out each other.
3. 06s are tiny bit faster because of higher power output.
I can chirp 3rd on my 06, but it was rather hard doing it on 07 z... that doesn't mean the 07 Z was disappointing by any means.
it can only be one of 3 things...
1. 03-05 z's are a tiny bit faster because they're bit lighter than 06 (debateable of course)
2. 03-05s and 06s are besically same.. weight dif. and hp dif. sorta cancel out each other.
3. 06s are tiny bit faster because of higher power output.
I can chirp 3rd on my 06, but it was rather hard doing it on 07 z... that doesn't mean the 07 Z was disappointing by any means.

I've tried searching to figure it out but nothing...
Q: What is the difference between the REV-UP (300hp) and the NON-REVUP (287hp) Motor? Which one do I have?
A: Rev-up Motor has higher peak HP, lower peak torque, and a higher redline (7000RPM)
Non-rev-up Motor has lower peak HP, higher peak torque, and a lower redline (6600RPM)
Rev-Up Motor has variable Intake and Exhaust timing.
Non-Revup Motor ONLY has variable Intake timing.
You can tell which one you have by looking at your redline on your tachometer.
A: Rev-up Motor has higher peak HP, lower peak torque, and a higher redline (7000RPM)
Non-rev-up Motor has lower peak HP, higher peak torque, and a lower redline (6600RPM)
Rev-Up Motor has variable Intake and Exhaust timing.
Non-Revup Motor ONLY has variable Intake timing.
You can tell which one you have by looking at your redline on your tachometer.
Originally Posted by Archbishop
What? I will refrain from calling you stupid, and just say you are ill informed.

Looks like the Higher the RPM, the more power you lose. Which is why I don't understand those who do all motor builds using the Pre-revup manifold.

Looks like the Higher the RPM, the more power you lose. Which is why I don't understand those who do all motor builds using the Pre-revup manifold.
The above plot is real, but it is the MREV2 without the spacer.
In that same article they show the cumulation of the spacer added.
Compare the MREV2(with the 5/16" spacer) against baseline for the final result. The spacer is needed for the additional top end HP.
Tony
EDIT: For the REVUP engine, I always recommend doing both the spacer and MREV2 for this reason.
And if for example you can't purchase both at the same time. Get the MREV2. It will give you the above curve with significant midrange gains. You can always add the spacer later for top end gains.
But don't do just the spacer on a REVUP lower collector. They don't work on REVUP lower collectors. Spacers and upper plenum mods only work on non-revup lower collectors and MREV2 lower collectors.
I hope this isn't throughly confusing.
Last edited by Hydrazine; Aug 29, 2007 at 03:40 PM.
Originally Posted by Hydrazine
Hi guys,
The above plot is real, but it is the MREV2 without the spacer.
In that same article they show the cumulation of the spacer added.
Compare the MREV2(with the 5/16" spacer) against baseline for the final result. The spacer is needed for the additional top end HP.
Tony
EDIT: For the REVUP engine, I always recommend doing both the spacer and MREV2 for this reason.
And if for example you can't purchase both at the same time. Get the MREV2. It will give you the above curve with significant midrange gains. You can always add the spacer later for top end gains.
But don't do just the spacer on a REVUP lower collector. They don't work on REVUP lower collectors. Spacers and upper plenum mods only work on non-revup lower collectors and MREV2 lower collectors.
I hope this isn't throughly confusing.
The above plot is real, but it is the MREV2 without the spacer.
In that same article they show the cumulation of the spacer added.
Compare the MREV2(with the 5/16" spacer) against baseline for the final result. The spacer is needed for the additional top end HP.
Tony
EDIT: For the REVUP engine, I always recommend doing both the spacer and MREV2 for this reason.
And if for example you can't purchase both at the same time. Get the MREV2. It will give you the above curve with significant midrange gains. You can always add the spacer later for top end gains.
But don't do just the spacer on a REVUP lower collector. They don't work on REVUP lower collectors. Spacers and upper plenum mods only work on non-revup lower collectors and MREV2 lower collectors.
I hope this isn't throughly confusing.

It performs very similarly to our 1/2" spacer. Essentially identical.
A little more top end and a little less TQ (and area under the curve) than the 5/16" spacer.
A little more top end and a little less TQ (and area under the curve) than the 5/16" spacer.
I agree with what Archbiship is saying, SOLO refuses to beleive a Crawford upper plenum alone can add top-end power to the REVUP-whereas the 03' lower collector on the REVUP fattens up midrange but KILLS top end (6000-7000rpm) thats why they need the 5/16" spacer to gain back most of what they lost, and they still lose power from 6200-7000rpm's but its minimal compared to the nice gains in the midrange under that.
Originally Posted by Archbishop
No, And thank you for responding to my message and adding your input here. Now what do you think about the Crawford manifold?
Originally Posted by Alberto
I agree with what Archbiship is saying, SOLO refuses to beleive a Crawford upper plenum alone can add top-end power to the REVUP-whereas the 03' lower collector on the REVUP fattens up midrange but KILLS top end (6000-7000rpm) thats why they need the 5/16" spacer to gain back most of what they lost, and they still lose power from 6200-7000rpm's but its minimal compared to the nice gains in the midrange under that.
But a Crawford gain on a REV-UP? Haven't seen it.




