BlueStag Posted March 14, 2012 Share Posted March 14, 2012 Alright, it took a painfully long time, and there were more than a few distractions, like not being able to seal up the wretched exhaust flange. Grrr. Now the exhaust exits at the end of the exhaust pipe, and audibly, that is a very good thing. But what started this torture was the fact that, once I got the Stag down off stands after nine years of storage, it turns out that the front carb was sucking air past its throttle shaft. I finally broke down and ordered a pair of rebuilt throttle bodies from Ztherapy. Much struggling, and suddenly the engine runs a whole lot more like I expect it would. Just now it is a bit rich and the idle is set a bit low. One more round should see it done. Yippie! And if anyone has a good site to recommend that describes how to tune SU's, I'd be glad to read it. There is no such thing as too much info. Well, yes, there is. But I want as much as I can get. Quote Link to comment Share on other sites More sharing options...
destruck Posted March 14, 2012 Share Posted March 14, 2012 (edited) Very nice. Sitting for 9 years huh? Crazy. I used this to tune my Z's SU's. I never tuned a carb let alone dual carbs and this really helped get it right. http://www.sonic.net/~kyle/su.html Edited March 14, 2012 by destruck Quote Link to comment Share on other sites More sharing options...
rossman Posted March 14, 2012 Share Posted March 14, 2012 Nice car Bluestag. I saw a Stag on Wheeler Dealers the other day. It had the original Triumph V8. Quote Link to comment Share on other sites More sharing options...
BlueStag Posted March 14, 2012 Author Share Posted March 14, 2012 Nice car Bluestag. I saw a Stag on Wheeler Dealers the other day. It had the original Triumph V8. It takes a bold man to drive an original V8 Stag. Actually, that car was pretty damned ratty, and they really did not do much to improve it. I was astonished to see them chuck the entire soft top frame. Thar's gold in thems hills! A Z engine is not far away from the original V8 for power. Someday I'd like to source a ZXturbo and get some real gitty up. Quote Link to comment Share on other sites More sharing options...
BlueStag Posted March 14, 2012 Author Share Posted March 14, 2012 Very nice. Sitting for 9 years huh? Crazy. I used this to tune my Z's SU's. I never tuned a carb let alone dual carbs and this really helped get it right. http://www.sonic.net/~kyle/su.html Yes. Nine years. Don't ever buy a house. Quote Link to comment Share on other sites More sharing options...
BlueStag Posted March 14, 2012 Author Share Posted March 14, 2012 Ye-ha! After what I hope is the last current effort with the unisyn and the colourtune, the damned engine is running much better! Starts with the twist of the key, idles pretty smoothly (although I dream of it being even smoother) makes real power, and for some reason, the automatic trans is responding to throttle position and down shifting correctly. Real power! Yippie! Quote Link to comment Share on other sites More sharing options...
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