Gernby, these guys know how to tune the vehicle and they don't need to drop vtec low and then set it high and set vtec to the point where the torque curves cross. I know myself, that i don't bother doing that anymore as from looking at peoples mods i know what i need to do with vtec.

The fact that Hondata's map sets vtec to 5600 on the basemap tells enough of the story for me.

Hondata's basemaps on the si drop vtec to 4250-4750 for different setups. header maps are 4250-4500 and certain intakes are set to 4750.

And just looking at his dyno plot, there isn't a massive jump in torque, and he says he doesn't feel a massive jump in torque and that it feels smooth. Could it be smoother? Yes, but the customer is always right, and redjar asked for a higher vtec point and that's what he was provided with.

 

It does sound like the OP got exactly what he asked for, so I retract any negativity that I had about eTunes. However, the OP mentioned that this was eTunes first S2000, so I doubt they would automatically know how his setup would respond to a lower VTEC engagement.

Unless you actually map VE on both cams over a broad RPM range, you really can't know where the "optimum" VTEC engagement would be. With my setup, VE for the low and high cams almost touch at 5700 RPMs, so that's where I thought VTEC engagement should be for a while. However, I later discovered that VE actually crossed at 3900, and that the high cam's VE was much higher than the low cam between 3900 and 5700. Basically, VTEC engagement is very smooth if it engages at 3900 or 5700 RPMs, but if it engages at 3900, I get a much smoother midrange that I don't get when it engages at 5700.

 

Considering tuning the k20 is more specific and advanced than tuning an s2000. I'd say they knew what they were doing regardless.

Does the S2000 have a pressure specific vtec window setup? I think it does. Hopefully you have your 3900 crossover to only cross at 98+ kPa

Also you may note that because of the way the k20 in the si is designed volumetric efficiency is actually highest around the 4-5k range where 50 degrees of VTC advancement is useful.

 

I believe eTunes probably does know what they are doing, and I agree that the S2000 would probably be easier to tune than any iVTEC platform. However, that doesn't mean that eTunes will know where the optimum VTEC engagement should be without actually testing for it.

My VTEC window is set to engage at 3900 only if MAP is above 883 mBar.

 

do you mean SI and s2000?

 

Fixed ... thanks.

 

Read the original post again and listen to the language, tone, and commercial-style plugs. etunes may be great, but that was way oversold. Ended up hurting the credibility.

 

How do you figure that?

If your just going by what the dyno plots show, then your missing half the story. The other half is in what I wrote up.

Would you buy a car just from reviews, spec sheets...etc, or would you drive it before you made up your mind? This is the same kind of thing.

All I'm doing is trying to provide info on a service I found valuable. My car now drives exactly the way I want it to. I think they are a great group of tuners....and stand by my review.

 

What a ridiculous post.

 

yes, woot692, my post is ridiculous. (bet you missed the sarcasm there as well)

"ask about the jdm throttle map also....you'll be glad you did"

"E-tunez offers outstanding technical ability combined with excellent customer service. The ease of the e-tuning process and the results far exceeded my expectations. If you have an S2000 that’s stock or not, get a FlashPro, then get in touch with e-tunez!!!"

wake up woot692...were you born yesterday?

The company may be great, but there was a reason for the disclaimer before the well-delivered (but oversold) message.

Good grief. Why do you waste my time making me prove an obvious point? Again, e-tunez may be wonderful, but read the friggin' post again like I said the first time.