Thinking of fitting a CHT gauge.....any ideas of which is good, and which is not, and where to buy?
Pierside parts has a vdo kit for $130 plus shipping... I have been looking into them also and I believe the catch is a lot of the gauges only go up to
300 c and I think we generally run higher head temps than most thus requiring a gauge that reads up to 600c like the vdo. I'm only guessing though.
http://www.cbperformance.com/ProductDetails.asp?ProductCode=2338
I've been using the above VDO gauge for over 10 years with no problems.
Its common to see 350-400deg F on the racetrack so get a gauge that reads up to 600.
I got my set up from aircooled.net. It works well. I am yet to see 350F on my guage the highest it has read after a full half hour of racing at Lakeside was around 250F which is where its stays even when normal street driving. I am running a type 4 engine. Bloody thing never gets hot.
Thanks for the feedback, fellas.....looks like the VDO kit is the go.
Bit late to the party I know Greg, but yeah - the VDO kit is def the way to go. I run two of 'em on Jezzi (one for #1 cyl, and one for #3) and they
work a treat.
Usually sit around 330F or so, and only just make it up to 350F towards the end of a multi-lap sprint (if I've really been on it).
How do you get time to look at TWO of 'em, Dave?
What sort of variation between 1 & 3?......I intended to fit only one sender, as I assumed #3 would be the hottest. Is the spark plug attachment
OK, or would it be better to fix it to the head?
Heh heh - old pilot's trick Greg... gauges are mounted side by side and rotated slightly so when "normal" the needles point straight up... makes it
real easy to spot anything non-normal just from a quick scan.
Plus it's known that I don't drive very quick, so I've got plenty of time.
I have a DTM shroud and only see about 10-15F variation between 1 and 3 (and 3 is the hottest obviously)... but when up in the revs for extended time
the variation comes down to basically nothing.
I used to have the senders under the plug but found it was a pain when changing/checking plugs, so now have them fixed direct to the head.
I have mine attached to the headstud on No 3cyl.
Hi
Wow they have come down in price, I remember in 80s they were worth about $250 - $300.
Has anyone done a comparison between locating the sender under the spark and on a head stud?
Steve
I did a comparison, bugger all diff
That's good, I guess your only looking for an abnormality to see if something has gone wrong