For those who has the rev up engine, what are the mods you have done to it, and what are your impressions?!

I'll start:

JWT Popcharger- Good mod, no problems. I can feel a little difference up top, around 4k - redline. Makes kind of a "swooshing" sound when letting the revs drop, and at WOT, really sounds like a monster.

Borla TD- After I installed, definitely can feel more power downlow, around 2k and up. Makes a little rattling noise sometimes, but doesnt bother me. Makes engine feel more "free". Easier time reving, just feelsl like the engine breathes better. Deep sounds at low rpms and disappears when reving the engine. No tq loss like some other exhausts, overall good bolt on mod.

Next Mod: MD Mrev +

 

well i would tell you mine but you summed up all i have done, but i hear the plenum spacer kit from motor dyne, i think, puts back any trq we lost and more for only 400-500$, it sounds like i good deal but havent heard about it from anyone who has put one on.

 

I have a k&n filter charger, test pipes, y-pipe and MREV. This combo is great but honestly I hate nissan ecu's. My next mods are going to be suspension just because buying engine mods sucks sometimes when the ecu takes all that extra power away.

 

Hey Supratt, I've read some of your posts on the Mrev +... do you still like it? Recommend or hold out on something else?

 

I like the look of the Mrev+ , but I want to do a whole heap of Nismo Mods.

I want to make sure the Mrev+ doesn't interfere with those.

I haven't heard of anyone doing the Nismo instead of the Pop charger.

Is it because the Nismo just came out and I gather it will be more coin then the Pop.

After modding an M5, All Nismo parts look cheap.

MJ

 

I have the Nismo cat back and the Nismo CAI, along with a Unichip. I'm not real happy with the Nismo CAI or the Unichip. I had the cat back then added the Unichip, at $900 it only gave me about 10 hp max and the power drops off at 6000rpm where I thought the revup was going to still be making power all the way up to redline 7000rpm. I then added the Nismo CAI and had a retune and made less power than before WTF! Like I said I'm not sold on the Unichip or the CAI. I'm thinking of pulling the Nismo CAI and going with the JWT popcharger and maybe even getting rid of the Unichip! I would not buy the Unichip again for the money. Looking at geting the Mrev+ in the future.

 

I have the MREV not MREV+, but it works so damn well. The gains are instant, I suggest getting it. It really does add all that torque and hp. It will give you that "push you back in your seat" feeling everytime.

 

That's the feeling I want! Even though getting that "push back" feeling at high rpms is good...i want it at the beginning since most street races/driving is at the lower rpms...I think the hp loss was 2 at 6800rpm (not sure tho) but the proven gain is there.

 

You can just convert the Nismo CAI to a high flow intake by removing a few parts. I would take a picture of my installation, but I am too lazy. My radiator overflow bottle now sits in the left fender.

 

I have the MREV mod and the HKS Exhaust. My car does pull harder than a stock car no doubt but not anything crazy. Honestly it's real hard and costs alot of money to get power out of these cars. I think I'm just gonna wait until my warranty expires and then go ahead and go all out and get a JWT or APS TT and call it a day. I'm probably going to do suspension, body kit, and wheels next. That alone will probably cost me $5k

 

If you had read one thread on the mrev to completion, you would know that it does not work well with CAI's such as nismo.

 

as per my sig, ive done;

K&N typhoon intake - better sound, better throttle response when air is cold only, lose throttle response and feels sluggish when in stop start traffic on hot days

Fujitusbo Exhaust + Fujtisubo y-pipe + Crawford cats - awesome sound with a raspy change in exhaust note past 4000rpm similar to M3 sound, but wasnt until i fitted the cats that i really felt an increase in performance. Very very noticeable torque gain down low and through the mid range, and a less gain up top

KJR pulley - this was a suprise install for me, i was skeptical, but the car just feels lighter and smoother at high rpm. The smoothness is the best gain, it just revs from 5000 to 7000 so easily and a bit quicker

Motordyne IsoThermal gasket and Copper TB mod - No 'gain' so to say, but the plenum does feel significantly cooler to the touch

UTEC - waiting to be tuned. Our local Subaru STI tuning house is really the only shop familiar with tuning a UTEC, and im waiting for a few Z's to go through the shop for the guys to get some experience before sending my car in. The first guy gained 21rwkw = 28 rwhp.....sounds promising

as much as im a fan of Motordyne's work, the MREV isnt for me - the torque gains are impressive but i dont want the car to feel breathless up high like the 287hp. There is a reason Nissan put shorter intake runners on the 300hp plenum - and thats for better high rpm response. Putting the 287hp plenum is working backwards imo. Plus im planning FI to beef up the midrange. Also the plenum spacers do jack on the 300hp lower plenum, the SportZMag proved a zero gain, which indicates Nissan achieved optimal airflow and volume for the 300hp plenum from factory

 

Well, if you were a auto x-er you would love the MREV. Yes you lose some up top but you gain mid-range which you need. If your looking for a lot of power up top go F/I, N/A isnt for you without high comp pistons and cams. Its all about preferance, I do a lot of canyon carving so I need the midrange.

 

dunno if you only mean N/A mods, but I'll add a turbo kit to the mix.

APS TT - gains A LOT more power with the stock block due to the new cams in the rev-up. I only have the TT kit, custom true dual, and test pipes...with 100 octane race gas, I'm boosting 14 lbs at 502rwhp. Stock plenum, stock pulleys, stock cams, stock bottom end, stock everything.

I didn't choose to go with the MREV cuz mine isn't an autoX car, I wanna FEEL the turbo pull.

 

that's insane power from the APS TT

ill be going APS as well, theyre only down the road

 

Notrouz,
You have a REVUP engine right?
If you are interested in MREV+ as a possibility, would you be interested in seeing the dyno results on your TT?

If you like, I can offer $100 towards the dyno cost if you got it pre/post dynod. I'm interested in seeing what MREV+ would do on a TT too.

Your car would make a good test case because the boost is so high.
Tony

 

does the ECU "de-tune" after awhile because on the MREV? after awhile when its "learning"?

 

No. If MREV changed the A/F ratio significantly the ECU might have a chance of canceling it out. But with all the MREV dynos i've seen, it doesn't seem to have much effect on A/F... Even at the peak gain RPM's, the A/F is predominantly unchanged.

I also re-did dynos of MREV on the same car a couple months later and the results were identical.

 

Hi Tony,

I believe we talked about this for a bit when my TT was getting installed. The reason why I didn't go for it was that it's already breaking loose in the mid-range due to the high torque numbers. If I add more mid-range, it would break loose even harder all the way to redline, where it would significantly die down due to the other dyno sheets I've seen on the MREV. It would be great for the track, but I need the power to be more linear to get traction more smoothly all the way up to redline... I'm not sure if what I said makes sense, but I hope you know what I mean.

Do you have any EXPECTED outcome from the MREV on a rev-up TT engine?

 

The MREV will give you very noticable gains but is not ideal for road course use. For daily drivers, it is ideal due to the fact that you are never really in the top end of the power band. With the MREV, you restore the low and mid range power that you lose with the Rev Up motors. The top end loss is very minimal and hardly noticable BUT, if you are on a road course, having that top end horsepower would help out a lot rather then losing that power with the MREV. A reflash is definitely a good mod. I had my ECU reflashed by Technosquare and felt a very noticable difference. The car felt more fine tuned with all my other mods and revving up to 7500RPM is just cool even though you lose power up top. With the reflash, I also noticed that the peak power band slighty moved higher which means that some of the lost horsepower in the top end is re-gained. But this is all on the butt dyno and from hard driving, nothing on paper from dynos.