simonjrwinter Posted December 28, 2012 Report Share Posted December 28, 2012 My son in law has a TR6 (CP) that he bought as a project a year or so ago. When bought, the previous owner told us the engine had been rebuilt and had an unload head fitted. We had no proof of any of this until we decided to strip the engine down for inspection. It seems the engine has been apart before as the pistons are numbered in felt pen and have been cleaned up. The bores look good, but as the engine has been sitting since the mid to late nineties, it seems prudent to strip it right down and check/clean everything. The cylinder head has indeed had unleaded inserts fitted and seems to have been given a light skim (probably just to re-face it) As the engine has been sat for so long, the intake and exhaust ports have lightly corroded and will be cleaned up before re-fitting the head. My son in law is considering taking the head to have it slightly ported to improve the gas flow and make for better breathing, but my query is, are we sure this hasn't already been done? I have no idea what a standard inlet/exhaust port looks like on a TR6 head so these may be absolutely bog standard or they may already have been ported......... If anyone could take a quick look at the pictures and let me know, we can decide where to go from here. Thanks Simon http://s91.beta.photobucket.com/user/simonjrwinter/library/cylinder%20head Quote Link to post Share on other sites
Guest ntc Posted December 28, 2012 Report Share Posted December 28, 2012 Pics do not come up here Simon? Quote Link to post Share on other sites
stuart Posted December 28, 2012 Report Share Posted December 28, 2012 OK here Neil.http://s91.photobucket.com/albums/simonjrwinter/cylinder%20head Stuart. Quote Link to post Share on other sites
Guest ntc Posted December 28, 2012 Report Share Posted December 28, 2012 Must be me Stuart as yours will not open Quote Link to post Share on other sites
stuart Posted December 28, 2012 Report Share Posted December 28, 2012 Neil if you still have it try the Firefox route. Stuart. Quote Link to post Share on other sites
stuart Posted December 28, 2012 Report Share Posted December 28, 2012 FWIW I cant view Smithy`s pictures half the time either Stuart. Quote Link to post Share on other sites
Guest ntc Posted December 28, 2012 Report Share Posted December 28, 2012 I will give that a miss chap as everything else works fine Quote Link to post Share on other sites
RonA Posted December 28, 2012 Report Share Posted December 28, 2012 (edited) Hi Simon The ports don't look as if the've been done to me. RonA PS I don't know why my post is underlined, sometimes I get the line right through the middle of the letters instead, this forum is the only place it happens, any suggestions welcome! Edited December 28, 2012 by RonA Quote Link to post Share on other sites
rpurchon Posted December 28, 2012 Report Share Posted December 28, 2012 take the valves out and look under the seat area.original are bit uneven and lumpy,and the bottom of the ex stems looks untouched. but the outer ports where the manifold fit look smooth, you should have bought your in law some emery tape for xmas, it would have kept him busy for hours richard Quote Link to post Share on other sites
Ragtag Posted December 29, 2012 Report Share Posted December 29, 2012 Hi SimonThe ports don't look as if the've been done to me. RonA PS I don't know why my post is underlined, sometimes I get the line right through the middle of the letters instead, this forum is the only place it happens, any suggestions welcome! ************************************************************************************** When you post there is a toolbar which enables you to do various things like underline, bold, strikethrough and add emoticons (NTC's favourite but I don't know what it means). If your post starts with one of these effects, just click off the button that is causing it. Quote Link to post Share on other sites
SuzanneH Posted December 29, 2012 Report Share Posted December 29, 2012 Hi SimonThe ports don't look as if the've been done to me. RonA PS I don't know why my post is underlined, sometimes I get the line right through the middle of the letters instead, this forum is the only place it happens, any suggestions welcome! Yes, move your cursor away from the toolbar....!!! Sue Quote Link to post Share on other sites
RonA Posted December 29, 2012 Report Share Posted December 29, 2012 (edited) Woops, as you can see computers and their mysteries are not my forte Although I can usually understand the first answer if I'm sober RonA Edited December 29, 2012 by RonA Quote Link to post Share on other sites
john.r.davies Posted December 29, 2012 Report Share Posted December 29, 2012 (edited) I don't think that saying use Firefox is an acceptable answer to 'I can't see your pics'! You want us to look at them? Mke it so, Mr.Sulu! You will find diagrams of OE Triumph combustion chambers and his own recemmendation for modding in Vizard's works, EG http://www.scribd.com/doc/12986341/Tuning-Standard-Triumphs-Vizard That would tell you if the chambers have been modded. 'Flowing' the ports is a black art, only useful A/ if you have, or have it done by someone who has, a flow bench, and B/ in combination with all the other performance inducing mods. But as OE, the ports can be crudely finished, with edges between the various drillings and casting mould parts, that may be removed and smoothed to make it look better and maybe flow a little less badly. That's what being "slightly ported" means! See Vizard for further advice, or "How to build, modify & power tune cylinder heads" by Burgess & Gollan, Pub.Veloce. You need an air-driven die grinder and burrs to do it properly. John Edited December 29, 2012 by john.r.davies Quote Link to post Share on other sites
simonjrwinter Posted December 29, 2012 Author Report Share Posted December 29, 2012 Thanks John, The intention is just to maybe make it flow a little better along with a decent extractor manifold, at the moment everything else is planned to be standard spec on the car. I had really good results porting a set of 302 ford V8 heads a few years ago, took forever but seemed to improve power and drivability (although how much was down to me just thinking it was better is up for debate) I would think any improvement it the way the charge accesses the combustion chamber can only be a good thing. "flowing less badly" is what we're aiming for! Simon Quote Link to post Share on other sites
Tony Millward Posted December 29, 2012 Report Share Posted December 29, 2012 (edited) Simon, if you are going to adjust the ports yourself, pay attention to the mating of the inlet ports and injector bodies. I have yet to see a TR6 injector port that matches exactly with the inlets. You can check these out simply by coating the inlet port face on the head with some light oil. Fit the throttle bodies as you would normally and blow some talcum powder into each throttle body (butterflies fully open of course). Remove the throttle bodies and you will see where you need to work by the talcum powder stuck to the inlet port faces. if you do find discrepancies, you will also need to do the same with the gasket afterwards. Simple trick but it does work. Some tips when 'porting': Smooth out all lumps and bumps in the inlet ports but do NOT polish to a mirror finish. There is a hump in the exhaust tract just as it changes direction..try to smooth this off. It is best to polish the exhaust port to as smooth a finish as possible. Remember that the walls in some place are not particularly thick (waterways behind them), so be careful taking metal off. Cheers Tony Edited December 29, 2012 by Tony Millward Quote Link to post Share on other sites
Guest ntc Posted December 29, 2012 Report Share Posted December 29, 2012 Simon I still cannot see your pics However just grinding away you may do more harm than good,porting today has moved on in a big way with cad and flow charts in 3D Quote Link to post Share on other sites
Nick Jones Posted December 30, 2012 Report Share Posted December 30, 2012 I can't really tell from those pics. Really needs the valves out and some shots from the combustion chamber side. Some info here http://sideways-technologies.co.uk/forums/index.php/topic/690-diy-heads/ and here http://sideways-technologies.co.uk/forums/index.php/topic/6080-nicks-diy-head/ that should give some clues Cheers Nick Quote Link to post Share on other sites
simonjrwinter Posted January 2, 2013 Author Report Share Posted January 2, 2013 Can anyone recommend a triumph cylinder head specialist who could do some work for us? I spoke to Gosnays in Romford but they farm their work out and don't know if he knows too much about Triumph heads.. Simon Quote Link to post Share on other sites
john.r.davies Posted January 2, 2013 Report Share Posted January 2, 2013 (edited) Simon, The cost of getting a head done for you will easily outweigh that of buying the kit to DiY! A die grinder and burrs, with an aircompresor that must have a greater "cubic feet per minute" (CFM) than that used by the tool, say 8 for the tool and 14 for the compressor, will cost less than £400. Then some study of the two books I recommended above will show you what to do, except that since in Vizard's day, burrs have become cheaper, easier and and far, far quicker to use than stones. Good luck! John Edited January 2, 2013 by john.r.davies Quote Link to post Share on other sites
TRTOM2498PI Posted January 2, 2013 Report Share Posted January 2, 2013 Hi Simon, Peter Burgess. See below link, he does most of the Triumph specialist heads,e be it standard or full race:- http://www.mgcars.org.uk/peterburgess/ Cheers. Quote Link to post Share on other sites
Tom Fremont Posted January 2, 2013 Report Share Posted January 2, 2013 Beat me to it! Here are some pics of a NOS head reworked by PB: Quote Link to post Share on other sites
Guest ntc Posted January 2, 2013 Report Share Posted January 2, 2013 (edited) Low compression then Tom, Edited January 2, 2013 by ntc Quote Link to post Share on other sites
Tom Fremont Posted January 2, 2013 Report Share Posted January 2, 2013 Lower than some I guess . I asked for, and reckon I got 9.5 <>10:1 . Easier to increase than to decrease ! Quote Link to post Share on other sites
Motorsport Mickey Posted January 2, 2013 Report Share Posted January 2, 2013 Ref porting heads yourself, only any good if you are bored and impecunious. There are certain things on cars that experts you trust can do better and quicker than an enthusiastic owner. Cylinder work flow development is an area where because of the buggeration factor and work involved in breaking down and building up you only want to do it once. Regarding Peter Burgess, he's devloped every cylinder head I've used either for road use or competition. I stumbled on him in the early eighties when searching for an expert on SUs and who had a flow bench. Numerous other "experts" were telling me what to do, and all off the top of their heads with no supporting figures to prove or otherwise their theories, Peter proved to me the quality of his work and his theories. His prices are at least competitive and judging by the number of TR and other various marque specialists who buy his expertise and then sell it on, they rate him both on quality and on cost. If they could get the same work done cheaper they would use the other outlet. Always use your money to buy expertise you either can't supply or it's not cost effective to do so. There are plenty of areas on a TR where you can reduce costs by supplying the labour or even the expertise if you have any which is applicable, I guess from your enquiry that doesn't include grinding out ports on a head ?. When I built my various race cars I developed the engines in conjunction with Peter Burgess to suit his heads, paid back in spades. Mick Richards Quote Link to post Share on other sites
Guest ntc Posted January 2, 2013 Report Share Posted January 2, 2013 You get like anything else in this field what you pay for Quote Link to post Share on other sites
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