[rdane]

Good morning Mr. Lombard,

The Wevo gate is the second one I have purchased. I have about 9000 miles now on my first WEVO setup. This one is for a second tranny with longer gears I am doing as a spare for long road trips. (Seattle/NYC) I sent you a PM on the details.

John, I made two simple comparisons. Dyno numbers are the most clear. Easy enough to read that for us simple guys. I have a reasonable idea of the money involved in both conversions so mentioned that. My real point is CIS gets a bum rap IMO, not that is superior. When a Motec and Vario ram engine doesn't blow a similar CIS engine away I have to say much of what has been said over the years about CIS has to be questioned if not just chit canned. Magical? NO. It is decent system we can live with in a street rod, seems a fair statement.

You make a number of assumptions that are incorrect, John. The HP and torgue are actually even more comparable than the graph shows. The drop of the CIS that looks like "falling off a cliff" is just simple throttle lift. That should be obvious.

Running the CIS car to the 7K rpm rev limiter would show a similar graph relationship to the 3.2.

The Motronic 3.2 is actually a 3.164 liter engine. My 3.4 actually a 3.356 liter engine. That is a 5.72% gain of the 3.4 CIS over the Motronic "3.2" in displacement. Some would argue this 3.2 used the very best engine management and induction. I was more than surprised that a "super" 3.2 didn't thrash a wheenie 3.356 CIS with only a 5.72 gain in displacement.

The 3.4 torque numbers are 5.53% higher than the 3.2. Not the 5.72% one might expect. But then a 0.19% loss to CIS would seem to be an easy choice over the costs of Motec let alone Varioram for most of us. With the facts more clear I think we are comparing apples to apples here on induction and not apples to oranges as you want to imply John.

The numbers are what they are. Helps to have some hard data to make good choices.

I know what my car will do. Just trying to share some info for the other CIS owners out there looking at options.

BTW I think a 3.356L, 98mm piston, Motronic injection engine would beat both of these engines for costs and in performance.

It will also be worth noting the changes a EFI system and twin plugs make to my 3.356L engine. That info will be available shortly as well.