rumburak

What is the consensus on the Evoheatshield phenolic spacer? yay ar nay.

XCLR8TT

Yay.

TTschwing

20% reduction in heat at the manifold. Less heat = more timing = more power

rumburak

I can't remember what brand and material it was but I saw Jeff's old Heatshield melted up to intake manifold. That was not pretty.

JustJeff

mine didn't melt, but it was deformed. I went phenolic.

rumburak

That's what it was. It's been awhile.

TTschwing

The Phenolic (Evoshield) won't melt.....You're thinking of the "powergasket"

rumburak

thanks for the clarification.

GorTT

there must be a significant difference in engine heat between 180's and 225 - TransporTT's bay was wildly hot for instance - (too much so, for a 'regular' drive, but that's the only 225 I've got to compare with - other than oil temps posted on the forum); his mani was far to hot to touch afterward, so I'd say that's your 20%, a good reduction (mani temp of what, say 175 -180?). Mine on the other hand can actually be touched - warm/hot, but won't burn you - after a full drive (oil temp to 220), so much more than 20% (maybe on the order of 140F; a 40% percent reduction - is that possible?). Need to get a spot temp reader on it sometime.

TTschwing

Check my actual recorded data....(these are Air temps BTW)<ul><li><a href="http://public.fotki.com/ttschwing/manifold_work/insulating_phenolic/">First 2 charts....here</a></li></ul>