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reinforcing convertible chassis
#11
(05-16-2019, 04:26 PM)japrine Wrote: I was actually going to start a new thread because all info I could find on monte carlo bars are a few years old. It seems that the consensus is that the straight ones that are sold for our cars do not work as they will hit the distributor. Can anybody tell me for sure if a curved one from a different year such as 1970 fit a 1971 engine bay?
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#12
Thanks to everyone for their thoughts. A race car builder told me my Mustang wasn't really designed to be a convertible. And his friend said something worse so I panicked. I think I will stay with just the subframe connectors and a curved monte carlo bar if I can find one. I always read good reviews for Global West. Car has a modified 351 Windsor guessing 400 hp. But I would like it to corner as well as its smaller cousins. I have never had a convertible before and looking forward to it. Waiting for tags from DMV after nonop. It has a black top that has a couple of small places coming apart that need repair. If it can't be repaired what do you all think if I changed it to white? Has blue interior. Will post photos when I have some. It is well optioned. Power steering, power windows, power top. None of which currently work. But I did pick up an 8 track to install and some Beach Boys to relive my youth. Ha. Thank you folks. Hey Iowa, ever hear of Cherokee?
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#13
(05-17-2019, 01:40 AM)jimchil Wrote:
(05-16-2019, 04:26 PM)japrine Wrote: I was actually going to start a new thread because all info I could find on monte carlo bars are a few years old. It seems that the consensus is that the straight ones that are sold for our cars do not work as they will hit the distributor. Can anybody tell me for sure if a curved one from a different year such as 1970 fit a 1971 engine bay?
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#14
I am pretty sure 70 will be too short. Maybe someone here can suggest something.
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#15
(05-17-2019, 01:58 AM)jimchil Wrote: Hey Iowa, ever hear of Cherokee?

Yeah. Been through there. Other side of the state from me though.

73 Grandé H Code. Headman long tube headers, T-5 Transmission, 3.70 Traclok, Lowered 1" all around, Aussie 2v heads w/ 2.19 intake, 1.71 exhaust, screw in studs, full roller cam 608/612 lift 280/281 duration LSA 112, Quick Fuel 750 CFM double pumper, AirGap intake.

- Jason


[Image: 082-hot-rod-power-tour-2017-1970-1970s.jpg]
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#16
No need for a mote carlo bar. The shock tower supports are the there already. Your race car buddy is wrong, don’t let him freak you out about this. Like others have said they built convertibles with a 429 torque monster from the factory. Now unless your engine is 600 hp or something like that, and you are going to race it, then maybe you would need one. Otherwise going with some subframe connectors will be just fine.

run_horse Run Horse Run!
John 72 Q Code
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#17
Ive always liked the look of these from TCP.

http://www.totalcontrolproducts.com/subframe.html
[Image: PKG-SFC-02-AT.jpg]

"I drank what?" - Socrates
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#18
As far as I know the 2015 Mustang is the first one to be specifically designed as a convertible from the start. https://www.forbes.com/sites/matthewdepa...afd6c56d3f
The sub-frame connectors will do wonders for the car's handling, ride quality, and rattle reduction. In my opinion it is the first modification to improve handling on any unibody car of this vintage. Chuck
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#19
71-73 verts from the factory have the addition of a inner rocker and floor pan reinforcement plates with a heavy plate across the tunnel to address body twist, none of which are present on a hardtop. Adding Subframe connectors will do little for torque or twist in a vert, but they will help greatly with mid section body flex particularly when the top is down. Some might disagree but as a long time vert owner that's my opinion. I have both a 73 and a 70 and the engine bay is wider on 71-73 so they take different Monty carlo bars. I agree with others the stock shock towers are reinforced and cowl braces are sufficient for street builds. The shock towers on earlier years, with exception of factory big block cars, were not reinforced and notorious for cracking.

1973 H Code Convertible - Medium Copper Metallic - June 8, 1973, Built Ford Marketing Sales Vehicle
[Image: DSC_0266xsm.jpg]
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