Are you running a restrictor in the T-stat housing? I ended up with one with a hole about the size of a dime. Made a huge difference. Also the highest pressure cap you can find<br><br><div id="__aol_mail_signature__"><div style="font-family:HelveticaNeue-Light;color:#949494;font-size:11px;">Sent from AOL Mobile Mail<br>Get the new AOL app: <a style="font-family:HelveticaNeue-Light;font-size:11px;" href="http://mail.mobile.aol.com" target="_blank">mail.mobile.aol.com</a></div></div>
<br><div class="aolmail_replyHeader">
On Saturday, November 30, 2019, van.mulders.marcel--- via Fot <fot@autox.team.net> wrote:
</div><br>
<blockquote style="margin:0 0 0 9px;padding:0 0 0 9px;"><div id="yiv1072244956"><div><div style="font-family:Verdana, Arial, Helvetica, sans-serif;font-size:10pt;color:#000000;"><div>I've some problems with a TR6 race engine : the engine is pinking and overheating. Compression ratio is 12.5. Comparing the cylinderhead of this engine with another 6 cylinder head (probably also from a TR6 , but from a Triumph saloon is also possible) : it turns out that my cylinderhead is lacking 5 coolant passages. My cylinderhead has only a passage just beneath outlet port no 6. The other cylinderhead has passages beneath every outlet port. I didn't know of this difference between 6 cylinder heads. Does anyone know which cars do have which cylinderheads? Can I add these passages on my cylinderhead, hoping for better cooling? I've been working on this engine now and then since 2 years. It belongs to a racecar a friend of mine has built. He has lost interest in this racing project and I bought the car. I'd like to see it on a racetrack some day.<br></div><div>Marcel</div></div></div></div>_______________________________________________<br><a ymailto="mailto:fot@autox.team.net" href="mailto:fot@autox.team.net">fot@autox.team.net</a><br><br><a href="http://www.fot-racing.com" target="_blank">http://www.fot-racing.com</a><br><br>Donate: <a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br>Archive: <a href="http://autox.team.net/archive " target="_blank">http://autox.team.net/archive </a><a href="http://www.team.net/pipermail/fot" target="_blank">http://www.team.net/pipermail/fot</a><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/gt6steve@aol.com" target="_blank">http://autox.team.net/mailman/options/fot/gt6steve@aol.com</a><br><br><br></blockquote>