Attila the Fun

iTrader: (1)

Part 3 - Will this thing run faster'n a stripedy-@ssed ape?



The title comes from an expression from my early teen (pre-drivers license) days. At the time it was typically applied to something like a Chevy 409. More recently, I saw a National Geographic program about baboons. The alacrity displayed when a leopard leaped into the middle of them gave new meaning to the old phrase.

After I had decided that the car ran well (Part 2b), I took it to Mitch Piper and had him fabricate a stainless steel exhaust system that would let the turbo motor be all it could be. This was in anticipation of a trip to PFSupercars for tuning.

An admission of fallibility: I had intended to upgrade the engine control system on the RXX-7 ( http://www.cris.com/~Asam/20B.html ) and bought an Electromotive Tec3 for that purpose. Silly me. For a 3-rotor, you need a Tec3r, so I found myself with a spare Tec3. Recalling the old saying - When life hands you lemons, make lemonade - I decided to put the Tec3 on the ResurreXion-7.

The bad news: Ray takes a long time. Four-and-a-half months in this case.

The good news: 390 rwhp.

Ray does real good work.

A picture of the dyno sheet is available on the website. For those who haven't visited, it's

http://www.cris.com/~Asam/Res7/Res7.html

For those who have already seen the rest, this page - with graphics - can be seen at

http://www.cris.com/~Asam/Res7/Res7Part3.html

The HKS turbo broke on the dyno, so Ray replaced it with a Garrett 35GTr. He also added 1600 cc secondary injectors. The Centerforce Dual-Friction clutch gave up at 15 psi, so we had to dial it back down to 14 psi. All's well that ends so very well, though. And it's nice to know there's more available if I need it.

By Murphy's Law, he delivered this pavement-mauling monster in the winter, and I got it home just as the snow began to fall. On the way, I was forced - FORCED, I tell you - to pass some drivers who were right-foot-challenged. [insert evil laugh] There were some reports of low-flying UFOs in the next morning's newspaper. However, the wide tires that
did so very well on dry pavement were less than ideal for snow and ice. Recalling that I had mud-and-snow tires on my old, stock BBS vert wheels, I got some adapters and put them on the car.

(Pictures on webpage)

The relatively narrow tires (215 x 60 x 15) won't allow peak performance - at 60 mph, stepping on the gas will break them loose, but they'll be better in the snow. This is, after all, a daily driver. With a light foot on the accelerator, the car is a pussycat. With a heavy foot, it turns into a tiger. I guess you could say it's purrrrrfect.

I took the car to the local agricultural scales and weighed it. With a curb weight of 2540 lb. (1360 front, 1180 back) and 390 rwhp, I think that the answer to the Part 3 question is "Yes". We'll have to wait for better weather and a trip to the track to be sure. Testing is sooooo very important.

Those who are familiar with my other car may have noted that the horsepower for this, 2-rotor motor is more than that for the 3-rotor. To forestall questions, I'll note that it's an apples-to-oranges comparison. The 2-rotor has a big, single turbo and 1600 cc secondary injectors. The 3-rotor has the stock twins and stock 550 cc secondary injectors. If I modded the 3-rotor to the same level as the 2-rotor, it would put out
about 700 hp. Hmmmm--700 horsepower. I suppose when I get tired of the ResurreXion-7, I could...

HadaGSL-SE

iTrader: (6)

Love reading your builds George. I saw the RXX-7 not long before it was for sale at an autox 5ish years ago. I have always lusted after both it and David Lanes GSL-SE.

Attila the Fun

iTrader: (1)

Thanks. Looking at your sig, I was wondering if you could answer a question:

Why would Grassroots have no interest in the RXX-7? I've talked with them a couple of times and never got a response.

estevan62274

iTrader: (32)

^ Nice build!
Ray is tuning my GSL-SE w/S5 TII engine on the 27th of this month.
Are cars are kinda close in builds.
I'm running a GT35R also, going to push it to 14 psi as well.

I hope to have some good numbers like yours
Steve

Attila the Fun

iTrader: (1)

If anyone can get them for you, it's Ray.

George