Update on two Renegade Hybrids...
11-12-2004, 07:11 PM
#1
Racer
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Update on two Renegade Hybrids...
Our 383 Chevy? (see below) engine was dyno'd today.... since I wanted a daily driver and smooth running (no Hot Rod Idle lope), they used a mild cam, yet still had 445 lbs of torque and 388 HP. The runs (at crank) were taken on a setup that began its reading at 3500 RPM, which the engine was already producing 405 lbs of torque. The setup should be done in two weeks including a respray of the black paint since the bumpers were aged to a different shade of black, and the suspension re-setup at AutoEdge.
Our Yellow Blower Motor 928 setup (www.rhsdplanning.com/porsche.htm) was in an accident. In my neighborhood at 20 MPH, I blipped the throttle (a quick jab) and the linkage stuck wide open. Since the 550HP and 550 lbs of torque were instant, within the two seconds it took to reach for the key to turn off, we (my wife and I) launched 400 feet sideways through two sets of curbs at a spped I cannot even describe. When we blew through the "dead end" sign which poked a hole in our gas tank, the car did a 180 in less than 25 feet. Amazingly, the only damage was to the tank, a lower right rear control arm, all wheels and tires and some minor body damage, attesting to the strength of the car overall. No one got hurt (another miracle). Some front lawns need to be replaced next spring. It seems the problem was traced (a repeatable problem) to a defective bearing in the throttle linkage. This car will be repaired (with a different linkage setup) within a month, but put up for the winter.
Both cars will be equipped with a kill switch, something you may consider on all modified Porsches no matter what method is taken to increase the power.
One more note... a few weeks ago was posts on if a Hybrid was a Porsche or a Chevy. My 383 engine has no Chevy parts except for the block which was extensively reworked... just something to think about.
Our Yellow Blower Motor 928 setup (www.rhsdplanning.com/porsche.htm) was in an accident. In my neighborhood at 20 MPH, I blipped the throttle (a quick jab) and the linkage stuck wide open. Since the 550HP and 550 lbs of torque were instant, within the two seconds it took to reach for the key to turn off, we (my wife and I) launched 400 feet sideways through two sets of curbs at a spped I cannot even describe. When we blew through the "dead end" sign which poked a hole in our gas tank, the car did a 180 in less than 25 feet. Amazingly, the only damage was to the tank, a lower right rear control arm, all wheels and tires and some minor body damage, attesting to the strength of the car overall. No one got hurt (another miracle). Some front lawns need to be replaced next spring. It seems the problem was traced (a repeatable problem) to a defective bearing in the throttle linkage. This car will be repaired (with a different linkage setup) within a month, but put up for the winter.
Both cars will be equipped with a kill switch, something you may consider on all modified Porsches no matter what method is taken to increase the power.
One more note... a few weeks ago was posts on if a Hybrid was a Porsche or a Chevy. My 383 engine has no Chevy parts except for the block which was extensively reworked... just something to think about.
11-12-2004, 08:57 PM
#2
Rennlist Member
Glad neither of you were hurt. That could've been VERY bad had it happened in heavy traffic. SOunds like the blower motor shark is a monster. Are those HP and TQ readings at the crank or the wheels???
11-13-2004, 10:40 AM
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Racer
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We were VERY lucky...
Thanks for the control arm, but we ordered one from 928 International... the HP and Torque figures are from the crank. We had actually tried to dyno at the rear wheel but could not get it to work earlier because (at the time) we did not have positraction, and they couldn't get the drum to move without smoking the one tire. Since then we did a lot of rear end work. And we were very lucky there was no one in the front yards. Currently we are investigating who makes the control arm which seems to be a standard on blower and tunnel ram setups. In fact we have since heard other similar stories (unconfirmed) of sticking throttles. Once we are sure who manufactures the part (marketed by other names in the industry) we will be in contact with them.
