Moderator Curtis Jacobson Portland Oregon (4577 posts) Registered: 10/12/2007 02:16AM Main British Car: 71 MGBGT, Buick 215 |
New HIWD: Ivan Collins' MGB GT (Ford) V8
What a cool car!
Details: Ivan Collins' 1973 MGB GT with Ford 347cid "302" V8 Engine - including specifications and 59 photos |
rficalora Rob Ficalora Willis, TX (2764 posts) Registered: 10/24/2007 02:46PM Main British Car: '76 MGB w/CB front, Sebring rear, early metal dash Ford 302 |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Great job Ivan! If you continue to have cooling problems, check out the fans from Volvo 970's and a few other models. It's a 2 speed fan that moves way more air than amy of the after market ones I could find. Mine hasn't even kicked into high speed since i installed it a swhile back. Another, maybe better fan is the Ford Taurus. It is a little thicker than the Volvo but looks like you have plenty of room. The Taurus fan is integrated with the shroud.
Edited 1 time(s). Last edit at 02/01/2013 10:59PM by rficalora. |
Jim Stabe Jim Stabe San Diego, Ca (829 posts) Registered: 02/28/2009 10:01AM Main British Car: 1966 MGB Roadster 350 LT1 Chevy |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
To add to Rob's cooling comment above, you might also benefit from sealing off the front of the radiator fton the engine compartment behind. All air entering, and therefore pressurizing, the engine compartment needs to pass through the radiator core. Air flows from high pressure to low and will take tha path of least resistance if allowed to go around the radiator. If the pressure in the engine compartment equals the pressure in front of the radiator you get no airflow and the car gets hot. There is some good reading here
[forum.britishv8.org] |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
An original aconite gt turned into v8 car? Blasphemy! I guess there's two of us in the club now!
I like so many things about this car, but most of all I like how many details Ivan figured out himself and did just a bit different. It's kind of a fresh version. I'd like to do my own 3 link, no way I'll be able to pony up for the Fast Cars IFS though. I've seen several cars lately that have me thinking about doing my gt dark red with a matte clear. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Ivan, I suggest measuring "underhood" air temp, when engine is running hot. This should help you make the decision for hood louvers/vents, and/or fender vents. Nice build, roverman.
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Jim Stabe Jim Stabe San Diego, Ca (829 posts) Registered: 02/28/2009 10:01AM Main British Car: 1966 MGB Roadster 350 LT1 Chevy |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
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mgbv81970 Scott Wooley Frederick Colorado (23 posts) Registered: 09/07/2011 02:20PM Main British Car: 1970 MGB 289 Ford V8 |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Your car looks great, congratulations! I'm likely going to go with the 8" Ford rear with a custom 3 link myself in the not-too-distant future. If anyone has any pitfalls or recommendations along those lines, I'd be all ears. I'm still breaking my car in with the stock rear and it's pretty obvious it's not fully up to the task.
Thanks for sharing. Scott |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Ivan, If you look in the MGB gallery, you'll see vented hoods that work well, for ejecting unwanted heat .Many production cars tend to have negative pressure on outside of hood, approximately 1/3 back from leading edge. This tends to be a good area, to extract hot air from fan wash and engine heat.True,as Jim suggest, a low cost Magnehelic, will help you locate target areas. I prefer the gauge that reads +/- pressures, like having 2 gauges in one. Cheers, roverman.
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Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Wow, I'm really behind I have been so busy Feb through March I didn't even realize yall were helping me and giving me pointers. Thanks for all the comments.
It's been real nice here lately so I've put probably 150 miles on the car in the last week and a half. No cooling issues but I really like the idea of the pressure difference measuring and the temperature. You guys seem to really think the louvers are the way to go. On a side note, does anyone have any idea why a serpentine belt would chirp all the time? I have to rub a little brake fluid on the belt every time I drive it to alleviate the chirp/squeal. |
TR6-6SPD Ken Hiebert Toronto Ontario (255 posts) Registered: 04/23/2008 11:43AM Main British Car: 1972 TR6 1994 5.7 L GM LT1 |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Ivan,
Great car you have there! In regards to the chirping belt, I think you'll find it due to "misaligned drive pulleys". Have a look at this: [www.gates.com] Ken |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6469 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Too bad they didn't give angular specifications in that article.
Jim |
flitner John Fenner Miami Fl (168 posts) Registered: 03/11/2010 10:58AM Main British Car: 1972 MGB 350 CHEVY |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
On my serpentine system "homemade mostly" the idler pulley screamed badly, I used a washer that I chucked in the lathe with a small amount of runout and faced it off creating a wedged shim, noted the skinny side and clocked it to compensate the bracket fault, worked like a champ.
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Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Well I took a closer look at it last night and with the belt off its perfect alignment, the problem is with the tension on, and the way I have oriented the idler, its pulling it outwards and creating a bad misalignment. Weird thing is the misalignment is coming from within the tensioner and not any flexing of brackets. Basically I set it up to tension up to the 3:30 -4:00 position but it looks like this thing was designed to be tensioned to the 6:00 position. (tension on mine is counter clockwise) So I need to redesign my bracket.
To Jim's point, I would like to know what the limits are as well. Seems like that would be a key point in an article like that. I would have run a v-belt but I needed to use the explorer timing cover (for clearance) which uses a reverse direction water pump so that killed my V-belt dreams. However a properly setup serpentine system should be more efficient, so I just gotta get my crap right. |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6469 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Ivan a photo would be a big help. If you can configure it so that the tensioning load (spring?) is applied equally to the front and back of the tensioner pulley that should correct the misalignment. A fundamental point but one easily overlooked. If applied by the axle it is best for the pivot shaft to be in line with the pulley centerline if possible as well.
Jim |
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6469 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
Looks to me at first glance like maybe you have a bit too much belt and are relying on the tensioner to take up the slack. With 180 degrees of wrap, alignment is probably a lot more critical.
Jim |
Re: New HIWD: Ivan Collins' MGB GT (Ford) V8
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