The MGB GT http://www.slowcarfast.com/MG Repair, maintenance and modification of a 1972 sports car en-us Copyright 2008 Keith Tanner. All Rights Reserved. keith@miata.net keith@miata.net Thu, 20 Nov 2008 19:30:23 -0700 Thu, 20 Nov 2008 19:30:23 -0700 Keith's RSS generator http://blogs.law.harvard.edu/tech/rss 60 The MGB GT http://www.slowcarfast.com/MG/images_sml/RSS.jpg http://www.slowcarfast.com/MG/ 88 88 The engine! http://www.slowcarfast.com/MG/diary.php?UID=73 http://www.slowcarfast.com/MG/diary.php?UID=73 <img src="http://www.slowcarfast.com/MG/images_sml/img_2260.jpg" align="left" border="0" hspace="2" vspace="0"> This is ridiculous. The nose of the Camaro is about 15 feet long, and the rear four cylinders of the engine are embedded in the firewall. There's no reason for this car to have such a stupendous nose other than overcompensation. Of course, you could say the same about the cowl induction hood on this particular car.<br>(more) Sat, 15 Nov 2008 21:32:59 -0700 The MGB GT While walking past the Opel GTs parked in the shop at work, I took a closer look at the shape of the fenders. http://www.slowcarfast.com/MG/diary.php?UID=72 http://www.slowcarfast.com/MG/diary.php?UID=72 <img src="http://www.slowcarfast.com/MG/images_sml/img_0511.jpg" align="left" border="0" hspace="2" vspace="0"> This might work. They're nice and round without the flattened edge used on the Golf. And there's a good donor in the shop as well - a parts car that is destined to be chopped into pieces. <br>(more) Sat, 15 Nov 2008 21:24:43 -0700 The MGB GT I stopped by a local scrapyard today and picked up a pair of fenders. http://www.slowcarfast.com/MG/diary.php?UID=71 http://www.slowcarfast.com/MG/diary.php?UID=71 <img src="http://www.slowcarfast.com/MG/images_sml/img_0526.jpg" align="left" border="0" hspace="2" vspace="0"> They're from a square-headlight Rabbit - one of the ones made in Pennsylvania. We tried to pull one off a German-built cabrio but it was built with much more enthusiasm and far more seam sealer so we could not remove it without damage. One nice thing about living in western Colorado is that the cars are almost rust-free. <br>(more) Sat, 15 Nov 2008 21:23:13 -0700 The MGB GT A lesser-known alternative to the Omni flares is ones from a Mk1 Golf - aka Rabbit. http://www.slowcarfast.com/MG/diary.php?UID=70 http://www.slowcarfast.com/MG/diary.php?UID=70 <img src="http://www.slowcarfast.com/MG/images_sml/1027322351491a6f1b5d8c8(1).jpg" align="left" border="0" hspace="2" vspace="0"> There's not as much information about them out there, but they have a better shape in my opinion. I'm going to pick up some Rabbit fenders that are in a junkyard locally and see for myself. I like the hood louvers on this car as well, I suspect something like that will be necessary to keep the temperatures under control.<br>(more) Tue, 11 Nov 2008 22:52:27 -0700 The MGB GT We have the drivetrain. http://www.slowcarfast.com/MG/diary.php?UID=69 http://www.slowcarfast.com/MG/diary.php?UID=69 <img src="http://www.slowcarfast.com/MG/images_sml/img_2237.jpg" align="left" border="0" hspace="2" vspace="0"> While I was in the middle of trying to figure out just what an L33 would need to convert it into something closer to my needs, I spotted an ad for a 1998 Camaro on Craigslist. The whole car was going for about the usual price for an LS1/T56 combination. So there was a change of plans, and now there's one very evil looking black car parked in the driveway. I could have driven it home, but with the forecast of snow in the mountains I decided that it would be better to give it a ride.<br>(more) Sun, 09 Nov 2008 20:44:01 -0700 The MGB GT After some rough sketches and much thinking, I'm leaning away from narrowing the Miata suspension. http://www.slowcarfast.com/MG/diary.php?UID=68 http://www.slowcarfast.com/MG/diary.php?UID=68 The roll centers won't be as well controlled as I thought - thanks to Jensenman on the GRM forums for making me take another look at this.<br>(more) Sat, 08 Nov 2008 08:26:08 -0700 The MGB GT A serious piece. http://www.slowcarfast.com/MG/diary.php?UID=67 http://www.slowcarfast.com/MG/diary.php?UID=67 <img src="http://www.slowcarfast.com/MG/images_sml/img_0448.jpg" align="left" border="0" hspace="2" vspace="0"> I found this vintage V8 badge that I believe came off a Nova. I might have to mount it on the car for a little hint as to what's underhood. Sun, 02 Nov 2008 00:12:30 -0600 The MGB GT I measured the maximum fender width of the MG at 58" front and 57.5" rear. http://www.slowcarfast.com/MG/diary.php?UID=66 http://www.slowcarfast.com/MG/diary.php?UID=66 <img src="http://www.slowcarfast.com/MG/images_sml/img_9446a.jpg" align="left" border="0" hspace="2" vspace="0"> That's a bit approximate, and it assumes the fenders are fully rolled. Measuring a complete Miata subframe with 205-series tires came up with 61" front and 62" rear. So I don't need to narrow things as much as I'd feared, as long as I don't do anything too foolish with wheel and tire choices. <br>(more) Sat, 01 Nov 2008 20:39:57 -0600 The MGB GT Of course, a power upgrade of this magnitude will have implications that reach throughout the car. http://www.slowcarfast.com/MG/diary.php?UID=65 http://www.slowcarfast.com/MG/diary.php?UID=65 <img src="http://www.slowcarfast.com/MG/images_sml/63220617.bkc6snkc.p1050481.jpg" align="left" border="0" hspace="2" vspace="0"> One victim will be the rear axle. I could cut down a rear from a Mustang or something similar - but why not go with an independent setup? Much more my style. And the obvious choice is a Miata one. I have access to cords of Miata parts, I know how well it works and I can use my access to aftermarket parts to tune the handling.<br>(more) Fri, 31 Oct 2008 00:37:24 -0600 The MGB GT Sharp eyes will notice the giant "LS2" on the last engine. http://www.slowcarfast.com/MG/diary.php?UID=64 http://www.slowcarfast.com/MG/diary.php?UID=64 <img src="http://www.slowcarfast.com/MG/images_sml/06 5.3l v8 l33 sle lor.jpg" align="left" border="0" hspace="2" vspace="0"> Okay, so I cheated on the picture. And here's the engine I'm really considering. It's marketed as the "Vortec 5300" and it's found in late model Chevy Silverado trucks. But in the 1500 extended cab 4wd versions, it's a special high output version called the L33. Unlike the usual truck motors, it has an aluminum block so it's a lot lighter.<br>(more) Fri, 31 Oct 2008 00:33:50 -0600 The MGB GT A new plan. http://www.slowcarfast.com/MG/diary.php?UID=63 http://www.slowcarfast.com/MG/diary.php?UID=63 <img src="http://www.slowcarfast.com/MG/images_sml/05 6.0l v8 ls2 cor lf lor.jpg" align="left" border="0" hspace="2" vspace="0"> The original intent was to install a Ford 302 into the MG, as it's cheap and readily available. However, that was before I got mixed up with transplanting an LS1 into a Miata. I fell in love with not only the performance, but also the packaging and the (relatively) light weight of the engine. So I've switched plans. It's going to be an LS1. Fri, 31 Oct 2008 00:19:53 -0600 The MGB GT The Targa Newfoundland is over. http://www.slowcarfast.com/MG/diary.php?UID=62 http://www.slowcarfast.com/MG/diary.php?UID=62 It was a lot of work getting the Targa Miata built, tested and out to Newfoundland and back. But that's done. And while some post-race analysis continues, it's time to turn my attentions back to the MG. This site is about to come back to life, as is the little black coupe. Sun, 26 Oct 2008 09:39:42 -0600 The MGB GT It's been pointed out that I never actually updated the results of the shock swap. http://www.slowcarfast.com/MG/diary.php?UID=61 http://www.slowcarfast.com/MG/diary.php?UID=61 Well, the car bounces. That's about as far as I've made it. A few other projects got in the way so the GT went to sleep for a while. Until the Targa Newfoundland car is done with the race, the MG will always be a lower priority.<br>(more) Sat, 07 Jun 2008 20:41:31 -0600 The MGB GT It's about time. http://www.slowcarfast.com/MG/diary.php?UID=60 http://www.slowcarfast.com/MG/diary.php?UID=60 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9248.jpg" align="left" border="0" hspace="2" vspace="0"> I've been waiting for this manual for over a month. Now I can sort out the weird wiring bugs. British manuals are really good. Wed, 21 May 2008 11:09:14 -0600 The MGB GT Either a really stupid idea or a stroke of genius. http://www.slowcarfast.com/MG/diary.php?UID=59 http://www.slowcarfast.com/MG/diary.php?UID=59 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9253.jpg" align="left" border="0" hspace="2" vspace="0"> The holes in the lower shock mount can get ovaled out and I was seeing the first signs of this. The threads on the bolt were getting damaged as well as doing damage.<br>(more) Wed, 21 May 2008 11:07:14 -0600 The MGB GT Step two - drill out the bushings. http://www.slowcarfast.com/MG/diary.php?UID=58 http://www.slowcarfast.com/MG/diary.php?UID=58 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9251.jpg" align="left" border="0" hspace="2" vspace="0"> They're sized for 12mm metric bolts, but the MG doesn't speak metric. A bit of time with a 1/2" drill, problem solved. Wed, 21 May 2008 11:07:14 -0600 The MGB GT First step towards installing the shocks - cut down the bushing. http://www.slowcarfast.com/MG/diary.php?UID=57 http://www.slowcarfast.com/MG/diary.php?UID=57 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9249.jpg" align="left" border="0" hspace="2" vspace="0"> I cut it a bit too far - a touch longer would have worked better with the bolt length. Nothing an extra washer couldn't fix though. Wed, 21 May 2008 10:59:07 -0600 The MGB GT The new vs the old shocks. http://www.slowcarfast.com/MG/diary.php?UID=56 http://www.slowcarfast.com/MG/diary.php?UID=56 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9254.jpg" align="left" border="0" hspace="2" vspace="0">The new vs the old shocks. Wed, 21 May 2008 10:59:07 -0600 The MGB GT The shocks have been selected. http://www.slowcarfast.com/MG/diary.php?UID=55 http://www.slowcarfast.com/MG/diary.php?UID=55 Most of my early selections turned out to be for various one-ton vans, with an expected stiff damping. The Mitsubishi Cordia of the late 80's has some shocks that have been used in the past, and they looked to be a good match. There's also a Corvette application that looks interesting, but the 1986 Corvette wasn't exactly known for ride quality!<br>(more) Wed, 30 Apr 2008 15:39:29 -0600 The MGB GT The mystery of the terrible ride has been solved. http://www.slowcarfast.com/MG/diary.php?UID=54 http://www.slowcarfast.com/MG/diary.php?UID=54 <img src="http://www.slowcarfast.com/MG/images_sml/IMG_9195.jpg" align="left" border="0" hspace="2" vspace="0"> In several ways, actually. I had a suspicion that the shocks might be involved, as they were the most likely candidate for restricting any bump travel. So I lifted the rear of the car up to have a look and whaddya know, one side didn't drop at all. I supported the spring, loosened off the shock and this fell out. It's jammed at full compression. So not only was it preventing the suspension from compressing at all - due to the way it was mounted - but it also was preventing it from moving. So, problem 1 solved.<br>(more) Tue, 29 Apr 2008 20:46:33 -0600 The MGB GT