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Brad · 01-25-2007, 03:32 AM

Running without exhaust doesn't hurt anything at all- it's shutting the engine off that creates the problems. My understanding is that the cool air cools the valves off too fast and cracks them. But I think that really becomes an issue when you're doing highway miles and high rpms for a long period of time. 8 miles shouldn't be a big deal.

01-25-2007, 03:32 AM	#5
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,672	Re: Exhuast ????? Running without exhaust doesn't hurt anything at all- it's shutting the engine off that creates the problems. My understanding is that the cool air cools the valves off too fast and cracks them. But I think that really becomes an issue when you're doing highway miles and high rpms for a long period of time. 8 miles shouldn't be a big deal. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...