Tony, as usual you are the man my friend. Don't have a revvup, but looking
forward to your future mods. Installed my 5/16 spacer not too long ago and
love it. Keep up the great work and research!

 

Gines has just signed up for #2!

--- A New dyno plot just came in on the G35 board. I didn't know AzSi22 was going to get his dynod, but here it is.

MREV in RED

 

im a bit confused Tony

so its $487 for a Nissan oem 287hp lower collector with the iso thermal plates and 5/16" spacer?

 

Yep. That's it.

 

Why did he not rev to the limiter on the second run? I might know why.....

 

why don't you just keep it to yourself then. i'm sick and tired of all the childish secret bs on this forum. i'm done with it.

 

Im not keeping anything a secret. If you would pay attention and read everything you would know exactly why. I am guessing that he did not rev it to the revlimiter becuase there would be a bigger loss to show.

 

While I think the mod is a good one based on the entire curve, I think it is misleading to call it a 15 HP mod. Most people, who do not understand the 15 HP was picked up at a certain point in the dyno plot, will assume that they simply can now say that they make an additional 15 HP on top of their peak. To illustrate: If my car makes 240 peak HP on the dyno, I might buy this mod, expecting to see my WHP jump up to 255 at some point in the curve. I think this is a grey area that allows for misrepresentation. I'm not sure how you SHOULD represent it, only that it really can mislead a person who doesn't know better...

I think the thought process and the work done on this were very good, and the result is evident by the dyno plot. This is a great mod for just about anybody with the Rev-Up engine to do, unless you are somehow stuck on wanting to spin the engine higher, even though it actually equals less performance. The power curve difference is where the speed is at...

 

Uhm, no. The stock tach indicated 7K on the dyno, but it seems as though its off by a few hundred RPMs (which is pretty common in most cars). If you are wondering, it was I that drove the car on the dyno. I've made over 200 runs on this dyno in various cars. The tech that was at the shop was getting ready to leave, so I didn't want to kill the rest of his night with me having to make another 3 runs when I didn't feel it was necessary. Tony has already stated that the trade off for the midrange is power dropping off more than a stock 05.

 

Talking about paying attention, why is the gear ratio slightly different between the two pulls??

LOIC

 

I believe this is something the dynojet does since it works off how fast the drum is spinning. .02 in difference doesn't account for any differences.

 

Correct. It is not the actual gear ratio.

 

Hmmm. Doesnt seem off to be, when the curves follow eachother. Is this with the spacer? I already know about this mods power gains and loses.

 

The stock tach and the RPM pickup on the dyno are 2 different things. The RPM on the graph is correct. The new run is only under by 200 RPMs, I just didn't take the car to fuel cutoff. I really don't think 200 RPM's is worth worrying about in this case, since we are looking more at the midrange, than peak HP since we already knew it would drop off.

 

You might aswell take it to redline and look at total performance gained and losed.

 

In modified do you mean that we didnt have his spacer? We used the 287hp motors lower plenum along with the Crawford upper plenum. MD was not telling anyone what the secret mod was and Doug thought he knew what it was, so we went and tested it out.

 

No, not just the spacer. The modified lower plenum has had the top lumps of runners 1&2 machined down.

 

Just to clarify also, I believe I received the modified lower plenum. It had the runners machined down.

 

I am pretty sure that doesnt make a flip of difference. Someone prove me wrong becuase if it does then mine will be done tomm.

 

Thankyou Hydrazine for the clarification you made, I now have a much gfreater understanding of the product. Now if I were to combinea CAI i.e. the Injen with this mod, would that help improve the peak # and lessen the dramatic drop off it has above 6.5k?