MREV+ Dyno Tested On The 287 HP Engine!
04-11-2006, 06:22 PM
#101
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Looks good! how do you drive the ecu into "performance mode" thats the first i've heard of that.
i hope you keep extracting power!
wish i ddint live so far so i could get hooked up and get in some dyno time!
i hope you keep extracting power!
wish i ddint live so far so i could get hooked up and get in some dyno time!
04-11-2006, 06:30 PM
#102
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Tony,
Thanks for the results. Do you know if the addition of an intake (CAI or short ram) would add any more gains to the mod of lower plenum + spacer?
Thanks,
Baron
Thanks for the results. Do you know if the addition of an intake (CAI or short ram) would add any more gains to the mod of lower plenum + spacer?
Thanks,
Baron
04-11-2006, 07:36 PM
#103
Originally Posted by Z BOY
tony, when will you have the newest version of the machined lower plenums ready for sale, and do you anticipate any further lower plenum modification and testing in the near future, or have you maxed it out?
ps: how can more air=lower a/f?
ps: how can more air=lower a/f?
And as of now, I can't see anything left to do as far as lower plenum mods are concerned. Port and polish is the only thing left to do but it doesn't really do much.
And good question about more air=lower A/F.... I don't know how it does that. I only know I have seen it more than once, and I have only seen this on plenum mods. Never on exhaust mods.
04-11-2006, 07:51 PM
#104
Originally Posted by BigZ88
Looks good! how do you drive the ecu into "performance mode" thats the first i've heard of that.
i hope you keep extracting power!
wish i ddint live so far so i could get hooked up and get in some dyno time!
i hope you keep extracting power!
wish i ddint live so far so i could get hooked up and get in some dyno time!
Sometimes the ECU will go into granny mode and pull back on timing. Sometimes a reset makes a big difference and sometimes it makes no difference at all.
04-11-2006, 10:45 PM
#105
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So are you saying you made more power on the 287hp non rev-up engine by adding this MREV++?? Is that what this is. I thought the MREV was only for Rev-up motors. Looks like you gained 6hp and 3ft/lb. with just the modified lower plenum. How much would a 5/16th spacer add?
04-11-2006, 11:05 PM
#106
Originally Posted by Nismo 350z
So are you saying you made more power on the 287hp non rev-up engine by adding this MREV++?? Is that what this is. I thought the MREV was only for Rev-up motors. Looks like you gained 6hp and 3ft/lb. with just the modified lower plenum. How much would a 5/16th spacer add?
04-11-2006, 11:56 PM
#107
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i'm kinda confused.. but hopefully somebody will clear things up as far as what i need to buy to get the most performance gain..
i'm guessing 5/16 iso-thermal plenum spacer & MREV+(remachined for 287hp engines)?
waiting for the dyno results and the website to update..
i'm itchin to get this for my car!! hurry up!!
i'm guessing 5/16 iso-thermal plenum spacer & MREV+(remachined for 287hp engines)?
waiting for the dyno results and the website to update..
i'm itchin to get this for my car!! hurry up!!
04-12-2006, 05:43 AM
#109
Originally Posted by Nismo 350z
So are you saying you made more power on the 287hp non rev-up engine by adding this MREV++?? Is that what this is. I thought the MREV was only for Rev-up motors. Looks like you gained 6hp and 3ft/lb. with just the modified lower plenum. How much would a 5/16th spacer add?
But it turns out that the lower collector modifications being performed on the lower collector of the MREV+ or even the MREV++ is also good for more HP on the 287 engine.
I know it may be confusing but hang in there. I will consolidate the product line to simplify it.
EDIT:
6HP in the midrange from the last modification seems like a lot. I certaintly hope it works that good but I would also like to see it repeated on another vehicle. If it is shown to be repeatable then its party time!
Lets get it dynod once again on WIRED 24/7's Z to validate the results.
Last edited by Hydrazine; 04-12-2006 at 06:04 AM.
04-12-2006, 05:51 AM
#110
Originally Posted by amG35
What is the cause of the erratic plot at 5200 RPM? Thanks.
04-12-2006, 06:54 AM
#111
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Originally Posted by Hydrazine
Yes and yes. The regular MREV is only for the revup motors. Installing a MREV on a 287 engine would be no differerent than installing just a spacer because the lower collector is identical.
But it turns out that the lower collector modifications being performed on the lower collector of the MREV+ or even the MREV++ is also good for more HP on the 287 engine.
I know it may be confusing but hang in there. I will consolidate the product line to simplify it.
EDIT:
6HP in the midrange from the last modification seems like a lot. I certaintly hope it works that good but I would also like to see it repeated on another vehicle. If it is shown to be repeatable then its party time!
Lets get it dynod once again on WIRED 24/7's Z to validate the results.
But it turns out that the lower collector modifications being performed on the lower collector of the MREV+ or even the MREV++ is also good for more HP on the 287 engine.
I know it may be confusing but hang in there. I will consolidate the product line to simplify it.
EDIT:
6HP in the midrange from the last modification seems like a lot. I certaintly hope it works that good but I would also like to see it repeated on another vehicle. If it is shown to be repeatable then its party time!
Lets get it dynod once again on WIRED 24/7's Z to validate the results.
04-12-2006, 08:16 AM
#112
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Tony
- Many thanks for the dyno runs w/AF ratio. That's what I was asking about earlier - this is kinda wierd behavior for intake improvements isn't it? But I'll take whatever it seems to get.
Can you just confirm what year/model and other mods, if any, were involved in this last dyno? I've kinda lost track of all this.
Looks like my waiting to place an order is getting close to over.
THANKS
- Many thanks for the dyno runs w/AF ratio. That's what I was asking about earlier - this is kinda wierd behavior for intake improvements isn't it? But I'll take whatever it seems to get.
Can you just confirm what year/model and other mods, if any, were involved in this last dyno? I've kinda lost track of all this.
Looks like my waiting to place an order is getting close to over.
THANKS
04-12-2006, 08:39 AM
#113
Originally Posted by GeoFX
Tony, can't wait to try your MREV++ kit with the 5/16" spacer on my FX35 on Friday. Will be doing before and after 0-60 GTech runs as well.
) and post impressions.
Last edited by MustGoFastR; 04-12-2006 at 11:38 AM.
04-12-2006, 11:10 AM
#116
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Tony, this mod for additional gains is just great. Thanks
Did I read this right: MREV+ increased AF 20% of 1 R and MREV++ decreased these 20% of 1 R plus it decreased another 5% of 1 R?
If so, this is good news for us with leaner AFR, and if MREV++ with 1/2" spacer will perform on dyno as expected then this is mod I definitely like to have.
Did I read this right: MREV+ increased AF 20% of 1 R and MREV++ decreased these 20% of 1 R plus it decreased another 5% of 1 R?
If so, this is good news for us with leaner AFR, and if MREV++ with 1/2" spacer will perform on dyno as expected then this is mod I definitely like to have.
Originally Posted by Hydrazine
Absolutely nothing was changed between the pre/post dyno runs except for installing the new lower plenum. The car was not removed from the dyno and the ECU was purposfully driven into performance mode before each set.
What is interesting to see in the plot above is that the new modification shifted A/F down about a 1/4 point through most of the curve. This isn't the first time I've seen a mod make power and simultaneously make it run a little richer, but it is always interesting to see.
What is interesting to see in the plot above is that the new modification shifted A/F down about a 1/4 point through most of the curve. This isn't the first time I've seen a mod make power and simultaneously make it run a little richer, but it is always interesting to see.
Originally Posted by Hydrazine
Sorry, can't do GB's now that we have distributors.
Good question about the A/F. Especially considering you have the HKS SC.
....YES It shifted A/F up ~2/10th's of a point. Not much, but we did see it.
Good question about the A/F. Especially considering you have the HKS SC.
....YES It shifted A/F up ~2/10th's of a point. Not much, but we did see it.
Originally Posted by Hydrazine
It was tuned to a nominal 12.75-13.0 A/F with a Greddy EU. The car even in its relatively stock condition was running very lean at WOT in the 14-15 A/F range. Way too lean for good health or good testing. So the tune was not to turn it into a dyno queen. More than anything it was to bring A/F back into a nominal range.
And I understand the skepticism. There are so many manufacturers that claim bogus or wildly exaggerated HP gains that any experienced mod installer would know better.
As with any of the other Motordyne products, independant testing is encouraged. I am confident these gains will be independantly repeatable.
And I understand the skepticism. There are so many manufacturers that claim bogus or wildly exaggerated HP gains that any experienced mod installer would know better.
As with any of the other Motordyne products, independant testing is encouraged. I am confident these gains will be independantly repeatable.
04-12-2006, 11:21 AM
#117
Originally Posted by G35 6MT
What are the dyno testing combinations your going to be testing this weekend for the plenum spacers?
I'm hoping the new and improved machined MREV++ 287HP lower plenum with a 5/16" spacer and a 1/2 spacer comparison.
I'm hoping the new and improved machined MREV++ 287HP lower plenum with a 5/16" spacer and a 1/2 spacer comparison.
-Baseline (my motor, intake, exhaust are all bone stock)
-MREV++ new collector
-Add 5/16" spacer
-If we have time, then hopefully do 1 more combo such as older MREV+ collector + 5/16" spacer
I don't see a need to test spacer by itself, because there have been quite a few independant dynos of the spacer IIRC.
Frankly I don't think we're going to be using the 1/2" spacer. The 5/16" is just so much more practical.
Last edited by Wired 24/7; 04-12-2006 at 11:25 AM.
04-12-2006, 12:37 PM
#118
Originally Posted by LMG_35C
Can you just confirm what year/model and other mods, if any, were involved in this last dyno? I've kinda lost track of all this.
I would say its prety close to stock condition. The Greddy exhaust was used so I could weld in a O2 sensor bung after the stock y pipe. I wouldn't say the Greddy exhaust is anything special. The resonators in the mid pipe are only 2" diameter flow through. This doesn't make it much better than the stock exhaust.
The EU certaintly helped because when the car was stock it was running 14.5 to 15.2 A/F WOT from ~3K RPM to Redline. Way too lean for safe operation on the track. So the EU was used primarily to fix an unsafe lean condition.
All in all, I would say it represents a relatively stock conditon for a G35 sedan.
04-12-2006, 04:04 PM
#119
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Originally Posted by Wired 24/7
Well, at the minimum I want to test:
-Baseline (my motor, intake, exhaust are all bone stock)
-MREV++ new collector
-Add 5/16" spacer
-If we have time, then hopefully do 1 more combo such as older MREV+ collector + 5/16" spacer
I don't see a need to test spacer by itself, because there have been quite a few independant dynos of the spacer IIRC.
Frankly I don't think we're going to be using the 1/2" spacer. The 5/16" is just so much more practical.
-Baseline (my motor, intake, exhaust are all bone stock)
-MREV++ new collector
-Add 5/16" spacer
-If we have time, then hopefully do 1 more combo such as older MREV+ collector + 5/16" spacer
I don't see a need to test spacer by itself, because there have been quite a few independant dynos of the spacer IIRC.
Frankly I don't think we're going to be using the 1/2" spacer. The 5/16" is just so much more practical.