I can tell you the car did not lose any torque down low. It gained some. The car is crazy out of the hole now compared to before. Watch my autox videos you can see.

 

I watched it and the Car sound MEAN!!!!

 

Vids? . . . Where?

 

My point wasn't that the dynos were inaccurate, and I don't doubt the veracity of the posted dynos. My point to chiapet was that dynos in and of themselves are not directly comparable. I could take my car to a local shop to dyno it(dynojet), then go across town to another place(dynojet as well), and see 10/10 difference in absolute peak numbers.

Before and after dynos make sense, but comparing the dynos posted for two different cars, on two different manufacturer's dynos, on two different days, in two different *states* does not.

 

hm the increase doesn't seem nearly as impressive as klumzee's increase. Why do I keep thinking its klumzee's intake mods that make this mod really come alive?

Hence, I asked what other mods would work synergistically with this one, and I'm still hoping to get responses.

 

I currently only have a Z tube and a K&N drop in filter. I am planning on adding this MREV mod (when I can get it) in conjunction with an HKS HI-Power exhaust, if it ever gets here.

I have not done a base dyno and don't plan to, as such. However, when I get these last 2 goodies installed, I will post dyno results.

 

http://titantrucks.net/russ/autox102350/

 

Trey is right. One of the reasons why it didn't look as good is that it lacks the before dyno (back to back comparison). It would've been better to see the baseline, and then we could really see if that A/F issue was just a glitch in one of the trials or if it's really a pervasive issue with the mod on that particular car.

 

Here is the original before dyno...

 

i may be misreading, but it seems the base dyno shows about 253 or so and the modded dyno shows about 265ish... is that correct??

 

Actually PEAK hp was lower on the after mod one. But mid range gained a drastic amount. almost 20 tq and 20 hp. But you can't just go by peak hp or TQ.

 

If I had to guess.... This mod is probably a non rev-up lower manifold with a spacer.... just guessing of course. My only concern is the loss in upper rpm horsepower as I have 3.917 gaers set and it drops the revs right in the sweet spot at every shift. The gear set change alone netted me +2 mph through the traps. Not to mention, the gear set change really brings the midrange alive compared to the stock gearing.

 

zxi,

I agree with you. I think it this must be something of a lengthened runner lower manifold.

BTW, changing your rear gears won't "drop the revs right in the sweet spot at every shift." The rpms drops will be the same with whatever rear gear you choose. The shorter rear gears (higher numerically) are only upping your torque multiplication, not changing the individual gear ratios (relative to eachother.) It acts like a multiplier.

Having the right gear defiantely works wonders on your 1/4 mile times though!!! It allows you to make better use of what you have.

The "mrev" mod looks like it is compacting and fatteneing the rev-up motors power curve. By keeping the same max hp but increasing midrange torque, and having max HP occur 500 rpms sooner, this mod may essentially do the same thing that adding the 3.90 gears do to a stock revup engine.....just in a different way.

 

i wonder if this "mrev" voids any warrantees?

 

everything does