MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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mowog1
Rick Ingram
Central Illinois
(1465 posts)

Registered:
10/17/2007 09:36PM

Main British Car:
1974.5 MGB/GT 3.9l Rover

authors avatar
Re: 340 upgrade
Posted by: mowog1
Date: July 29, 2014 04:03PM

Saw it....lookin' good!


mgb260
Jim Nichols
Sequim,WA
(1966 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 340 upgrade
Posted by: mgb260
Date: July 29, 2014 04:54PM

Really love the title in that link. I almost posted with just( ! )until I saw the video. Sounds Great!


MGBV8
Carl Floyd
Kingsport, TN
(3672 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

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Re: 340 upgrade
Posted by: MGBV8
Date: July 29, 2014 09:51PM

Not sure what Graham & Calvin did, but whenever I load the last page (26) of this thread the audio portion of Jim's video comes on automatically without showing the video. Weird.


rficalora
Rob Ficalora
Willis, TX
(2603 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 340 upgrade
Posted by: rficalora
Date: July 29, 2014 10:14PM

Quote:
He got the monster to move under it's own power, transmission in "limp" mode.

If that was limp mode, fully operational is going to be too much fun!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 03, 2015 07:10PM

Incremental progress and all that you know, I've got the wiring done underneath and today reduced the number of remaining loose ends from 18 to 14 and organized the others, and I'm planning to take on one or more of the remaining wires at a time until they are all connected. I've taken care of a couple minor issues like the leaky thermostat neck, the PCV plumbing, and the alternator, (found a really cool small chrome plated adjustable external voltage regulator made to be mounted on the outside of an early delco for under $40) and the noise from the serpentine drive turned out to be where the belt was stepped over one groove on one of the pulleys so that is fixed now.

Still a lot to be done but I should be able to finish up while waiting for spring.

Jim


Jim Stabe
Jim Stabe
San Diego, Ca
(714 posts)

Registered:
02/28/2009 10:01AM

Main British Car:
1966 MGB Roadster 350 LT1 Chevy

authors avatar
Re: 340 upgrade
Posted by: Jim Stabe
Date: January 04, 2015 03:19PM

Make that 14 loose ends that you have identified so far :-). Can't wait to see a video of that thing under full power.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 04, 2015 07:32PM

How true. But those 14 at least are wires. Only thing is, they mostly need a little extra, like the LED display for the 4 gear position output lines, or the paddle shifters for the two up/down shift lines. I'd love to have a segmented digital display for the indicator but it's more likely I'll just find a spot to stick 4 LED lights and let it go at that, at least for now. Anyway I'm not that far off being able to test the jumper pins in the controller and apply power and then it's programming and tuning.

Plus of course going back and sorting out that mysterious oil leak. But I'll worry about that after it gets warm.

Jim



BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 05, 2015 05:46PM

Found a neat little 7 segment display module that I think will fit in the brake warning/test switch that is on the left side of the dash. Right now it has a red LED for the wideband O2 sensor behind the red window and that will stay. What I intend to do is put the numerical display right beside it by cutting out part of the black insert that was used as a switch. I found two that were usable and ordered both, one is yellow and the other is blue (didn't consider red, really was looking for green but no joy there) the number is 9/16" tall. In case anyone wants to know, the yellow is: HDSP-5703, blue is: LTS-5503AB and the driver to run them from a digital input is: CD4511BE. The driver accepts from 3 to 20vdc, -5 to +5v on the inputs and powers the LED module directly so no resistors are needed. Pretty cool I think. I'll have to talk Lance into programming the BCD outputs for it on 3 lines instead of discrete on 4 lines but that shouldn't be too involved I wouldn't think.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 07, 2015 10:37AM

Found something else pretty cool. It's a 2 channel touch sensor circuit on a narrow PCB that takes external pick-ups. Nice lady at the company said they had a sample they could send me. Apparently it is designed to go inside a car door handle to lock and unlock the door (not sure exactly how they planned to do that though without some sort of ID code but I guess it could work with an RFID device) It is a capacitive unit that supposedly can work through gloves, so I'll see when it gets here. If it works well, I may have paddle shifters that don't even have to move to shift. Just a touch. The board will easily fit inside the steering column.

Jim


Dan B
Dan Blackwood
South Charleston, WV
(966 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: 340 upgrade
Posted by: Dan B
Date: January 07, 2015 11:31AM

Glad to see you have been able to make some time to work on the B!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 08, 2015 11:03AM

Bits 'n pieces. You get to a point in a long project where it isn't done but the work you are doing on it, is because it needs to be done not because you enjoy it. At that point the project isn't any fun anymore and you just want to get done with it. How you handle this low point can make or break a project and often does. But there is no one-size-fits-all answer. Some will power on through and get it done just on sheer force of will, some will take shortcuts and just get the danged thing running, and some, like me, need to just back away from it until the creative urge returns. Sometimes that takes awhile too and it isn't an especially easy thing to manage. On the whole it seems there may be some advantage to walking away at the first sign of discontent so that the breaks are short, but there really are points where you don't feel like you can do that. Let's say you just tore down the transmission for instance with all those weird parts that fit together strange. Do you really want to leave it like that for a week or more before trying to put it back together? No. Not unless your day job is rebuilding transmissions, and that can sometimes be a mild example.

The transmission control part of this build has been like that though, and there have been points where my only real choice was to walk away. One thing I have learned is that if I hit a snag it often works better to just put down my tools at that point and wait for inspiration. Sometimes that takes awhile. Sometimes it doesn't. But the results are always better than if I forge ahead. OTOH, it's a big reason why it's taking so long. That and the fact that this is a Bigjob. If I stopped to add up the parts of it that are also Bigjobs I'm not sure I'd even want to know the talley.

So anyway, the display modules came in along with the driver chips. I have one ready to mount the chip to the back of it with a dab of silicone sealant, will wire it up and test it before fitting it to the switch housing. It looks like it will fit in nicely. The one thing that is an issue though (isn't there always that one thing?) is that I seem to remember that the O2 sensor needs a calibrate switch of some sort. The test switch for the brakes was still active, wired across the LED for the wideband O2 sensor and I probably had it that way to use as the calibrate switch. Well it's gone now, it was in the way. Which means I need to go back and study the wiring for the O2 sensor controller and come up with a compact pushbutton switch that will fit in between the LED and the numeric display. Space is tight but maybe I can come up with a miniature that will work. Always fun, eh? These little details are why the 90/90 rule applies. 90% of the time is needed to get the job 90% done and then 90% is needed to finish it.

Can't wait to see what the touch sensor board looks like. That will potentially add a great deal of simplification to my paddle shifter assembly.

Jim


Charles
Charles Long
McDonald, TN
(177 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: 340 upgrade
Posted by: Charles
Date: January 08, 2015 11:37AM

Jim B, since I started doing this kind of enjoyment, which began a looooooong time ago, I have adopted an attitude, "I do not have to do this, I do this because I want to". I did our B 20+ years ago when my company was forced, to stay alive, make several tough decisions. I now look back and understand why I did what I did to the "B". I now drive my therapist and enjoy the results of my therapy. I like you have walked away for some time to recollect myself and my thoughts, then return with a new outlook and finish the project.

Jim, your display of deversity sometimes amazes even me.

O btw I feel anyone should be able to spell any word in the American language at least two ways.

Regards
charles


Dan B
Dan Blackwood
South Charleston, WV
(966 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: 340 upgrade
Posted by: Dan B
Date: January 08, 2015 02:25PM

Pretty sure it is just a contact to ground for the sensor, and it has to be exposed to fresh air to calibrate, which means removed from the pipe. That shouldn't have to happen very often. Do you even need a button, and if you do, it could be someplace harder to access than right on the dash so it wouldn't get bumped/pushed by accident or curious folks.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 09, 2015 10:56AM

Charles, I like your insistence on unique ways of looking at things. Sorta helps keep the youngster alive you know?

Dan, do you recall if it was the lead to the LED that gets grounded to calibrate? I kinda suspect it was.

Jim


Dan B
Dan Blackwood
South Charleston, WV
(966 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: 340 upgrade
Posted by: Dan B
Date: January 09, 2015 02:35PM

Yes, the LED goes from the calibration wire to ground. So does the button.




BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 17, 2015 06:26PM

A little more progress today, thankfully. By now I finally have all of the wires routed and sheathed and can concentrate on the terminations. The display is coming along well, the assembled piece should look almost like the original brake warning switch but I still need to wire the chips and test them. I burned up the first one and I'm waiting on some clip leads to get here. The capacitive touch sensor came in and should be pretty slick, it can pick up a finger touch with gloves on. So I finally got around to bending the 1/4" titanium rod for the paddles. Each one looks sort of like a deformed D or a bean and will make up a little less than 1/2 of a 9-1/4" circle which will sit about 1-1/2" forward of the steering wheel rim. I'll weld these rods to a pair of flat plates that will bolt to the face of each cowl half. Another plate on the inside will sandwich the plastic and give a place to attach the wire to the sensor, which will lay inside the cowling. I ran the +5Vdc line from the transmission controller up to power it so I won't have to worry about exceeding the voltage limits. I have to wait on some Ti sheet and filler wire before I can finish that part.

So anyway, a little bit closer. I'll try to post some photos once I get the paddles made.

Jim


Charles
Charles Long
McDonald, TN
(177 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: 340 upgrade
Posted by: Charles
Date: January 17, 2015 10:01PM

Jim,I just went back and listened to your start-up. Just simply a beautiful sound.
charles


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: January 18, 2015 01:22AM

Thanks Charles. It's been too cold to start it for awhile and I spent today on wiring. But soon I hope. There's definitely less to do than there was.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5776 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: April 14, 2015 09:39AM

Here's my new "Piranha" grille:

IMG_0004.JPG

IMG_0003.JPG

IMG_0002.JPG

Jim


Dan B
Dan Blackwood
South Charleston, WV
(966 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: 340 upgrade
Posted by: Dan B
Date: April 14, 2015 10:47AM

Nice!
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