Exhaust temperature

[Kenneth Blackwell]

FWIW:  Gas temps are higher than skin temps. I have measured skin temps from
the head along the header and pipe using an IR device. On a 4-stroke, head
temps were 125 to 250 deg F (depending on locaton on the head). Header temps
250-450 deg F. On a 2-stroke (Webra 1.45), I measured the temp near the
coupler on a 2-stroke at less than 100-deg F. Head temps from 100 to 160 deg
F (depending on location on the head).

Ken B.

----- Original Message -----
From: "Michael H Lance" <michael.lance2 at attbi.com>
To: <discussion at nsrca.org>
Sent: Tuesday, April 15, 2003 11:46 PM
Subject: RE: Exhaust temperature


> Ihncheol,
>
> I have measured instantaneous temps above 600 degrees F in the exhaust
> stream immediately behind a Central Hobbies high performance header.
> Engine was 140L turning a 16 x 12 Mejlik on Cool Power 25%.
>
> Mike Lance
>
> -----Original Message-----
> From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
> On Behalf Of Ihncheol Park
> Sent: Tuesday, April 15, 2003 1:50 PM
> To: NSRCA
> Subject: Exhaust temperature
>
> I have a question to ask regarding our 2 & 4-stroke engines exhaust
> temperature.
> How high do they go up?
> I just ran a 91SX-H (FX) with a full length Macs standard header and a
> quiet
> tuned pipe for 140.  Seller only told me it was for 90 size, but
> actually
> showed up as a 140 size.
>
> I ran with APC 15x8 with magnum #1, extra shim installed.  The pipe got
> way
> too hot (sizzling).  The engine was not ran at peak (very rich).
>
> When I ran Hanno 61 with 650 at full length header, it was not this hot.
> So, I am just wondering how hot do our engines go.
> How about those 120/140s 2 and 4-stroke engines?
>
> Thank you,
>
> Ihncheol Park
>
>
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