| Author | Message | ||
| Adam Goldman '86 TR (Icnsltmfg)
Member Username: Icnsltmfg Post Number: 494 Registered: 8-2001 |
When I get the car back from the 30K I will make a sound file. | ||
| JRV (Jrvall)
Member Username: Jrvall Post Number: 371 Registered: 11-2002 |
Cold air scavenging back up the short pipes can warp hot valves. | ||
| Ben Lobenstein 90 TR (Benjet)
Member Username: Benjet Post Number: 941 Registered: 1-2001 |
Jeff, I'm not sure exactly, somehting to do with the lack of back pressure. Anyone else want to chip in here? -Ben | ||
| Jeff Green (Carguy)
Junior Member Username: Carguy Post Number: 83 Registered: 10-2002 |
Ben, what type of valve issues could be caused by open headers? I've heard the idea that a hot exhaust valve that is cooled down too fast, like shutting off an engine after running with open headers or no headers at all, can warp. What other concerns are there? | ||
| William H (Countachxx)
Intermediate Member Username: Countachxx Post Number: 1649 Registered: 2-2001 |
Jeff , my 512TR race car will have open pipes most of the time, I guess i better get some good ear plugs  | ||
| Mitchell L. Davidson (Jussumfastgi)
Member Username: Jussumfastgi Post Number: 351 Registered: 4-2002 |
Adam, I just have to hear that. Do you have any sound files? | ||
| Adam Goldman '86 TR (Icnsltmfg)
Member Username: Icnsltmfg Post Number: 493 Registered: 8-2001 |
My TR is Very open. It has very "Clean" cats, and a very open racing exhaust from Koenig. Everyone that hears it esp on the track love it. It is louder than Ch cars, and sounds like a true old 12. It is even better in the Lincoln Tunnel. It makes a Tubi sound like the car is turned off. | ||
| Ben Lobenstein 90 TR (Benjet)
Member Username: Benjet Post Number: 940 Registered: 1-2001 |
I was thinking of starting it up with the entire system off, as I've had it off 2x in the last 30 days or so (it normally sits on the garage floor, only put it in to pass - ya know, yeah). I was told that it should not be fired up with nothing behind the headers due to the complete absence of back pressure and the great possiblity of valve issues. I have heard from others that the sound is awesome, but it wasn't something I was willing to experiment with (too much possiblity of damage for just a few mins. of heaven). -Ben | ||
| Jeff Green (Carguy)
Junior Member Username: Carguy Post Number: 82 Registered: 10-2002 |
I recently removed the entire exhaust from my TR for various reasons. For some reason I wondered what a Testarossa would sound like with open headers. All I can say is WOW! At idle it's pretty smooth, but blip the gas and man oh man does that baby want to rev! I'm wondering if maybe my cats had a flow restriction? It revs so freely and quickly now. Has anyone driven their Ferrari, for what ever reason, with opened exhaust just for kicks? |