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Author Topic: Mid- Engine Modified Sports  (Read 241450 times)
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manta22
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What, me worry?




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« on: June 08, 2008, 06:27:10 PM »

My B/GMS is still under construction but it's getting there. It is based on a Manta Mirage but modified to increase the chassis strength and stiffness. The front & rear suspension are new fabrications and there will be a stressed panels on the chassis. A full roll cage will be added, of course.

The engine is a Donovan 383 driving a Porsche G50 transaxle turned upside down so that the 5- speeds are forward, not reverse gears.

Everything is currently temporary-- tack welds & Clecos, etc. The chassis is mounted on a dolly in these photos.


* DSC00107b.jpg (65.35 KB, 553x415 - viewed 1210 times.)

* Engine__Tranny-_a.jpg (120.64 KB, 640x480 - viewed 1167 times.)

* RF_Suspension_2-_a.jpg (104.07 KB, 640x480 - viewed 783 times.)
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Regards, Neil  Tucson, AZ
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« Reply #1 on: June 08, 2008, 06:54:31 PM »

Great start, Neil. From the first foto date I think the body is probably fully cured.

FREUD
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manta22
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What, me worry?




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« Reply #2 on: June 08, 2008, 07:00:22 PM »

Yep, I think you're right about that. It helps that since then I've retired and have more time to work on it now in earnest. Things are moving along at a much faster pace now. I'm shooting for the first run in 2009.
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Regards, Neil  Tucson, AZ
Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #3 on: June 08, 2008, 07:16:00 PM »

Nice start, keep those pics coming?  Most people will tell ya it is easy to make a car that runs the twisties go straight, be we all know better.  It is not easy to make any car go WOT and straight.  Good luck with the project, see ya on the salt.
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
manta22
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What, me worry?




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« Reply #4 on: June 08, 2008, 07:21:45 PM »

Will do. I have no illusions about how "easy" it is to go in a straght line at high speed! We've all seen some humiliating failures on the salt. I'll try to avoid being one of them but in any case it will be a learning experience for me.
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Regards, Neil  Tucson, AZ
dwarner
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« Reply #5 on: June 08, 2008, 08:02:41 PM »

Neil,

Don't forget to bring the documentation of 50 or more models produced to impound.

DW
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #6 on: June 08, 2008, 08:21:15 PM »

Currently there are 144 in the Mirage Registry online, that is probably enough to prove 50 produced.  I had the same thought so I looked.  Not enough for GT, but OK for MS. 

Oh yea, Neil's is one of them.  Saw one listed as #217.
« Last Edit: June 08, 2008, 08:28:00 PM by Stainless1 » Logged

Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
John Noonan
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286 200+ mph time slips. 252 mph on a dirtbike




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« Reply #7 on: June 08, 2008, 08:30:47 PM »

Can you run this with either an H or G engine for this class?

J
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John Noonan
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286 200+ mph time slips. 252 mph on a dirtbike




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« Reply #8 on: June 08, 2008, 08:34:09 PM »

Nevermind, I see them in the 07 book.. wink
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Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #9 on: June 08, 2008, 08:50:16 PM »

Can you run this with either an H or G engine for this class?

J

all the way down to I, blown, unblown, gas, fuel, seems like unlimited possibilities, I smell another championship brewing....  rolleyes

and there is one on Ebay
« Last Edit: June 08, 2008, 09:01:43 PM by Stainless1 » Logged

Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
Glen
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« Reply #10 on: June 08, 2008, 09:03:26 PM »

Neil
Glad to see you on this site, Lot's on good stuff here. Stay tuned.
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Glen
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manta22
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What, me worry?




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« Reply #11 on: June 08, 2008, 09:48:25 PM »

OK, Dan-- if & when I get to impound!

I have an couple of e- mails saved somewhere that address the legality of this car. Someone in the SCTA investigated it already and found to their satisfaction that there were more than 500 of this model produced. I'll have other documentation as well, of course.

One thing I've wondered about is how cars in MS can run extended wheelbases since the rule book prohibits lengthening the body. "Removal of minor trim & bumpers is allowed as long as the body is not altered in length, width, or contour."

Maybe this question really belongs in the SCTA Rules Forum, though.
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Regards, Neil  Tucson, AZ
Stainless1
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Robert W. P. "Stainless" Steele Wichita, Kansas



« Reply #12 on: June 08, 2008, 10:06:24 PM »

One thing I've wondered about is how cars in MS can run extended wheelbases since the rule book prohibits lengthening the body. "Removal of minor trim & bumpers is allowed as long as the body is not altered in length, width, or contour."

Maybe this question really belongs in the SCTA Rules Forum, though.

MS can change from the cowl forward.  The body is aft of the cowl, a top chop is allowed there. Notice height is not mentioned.   It is a little hard to follow, but that is basically it, they don't want you to narrow and lengthen the part aft of the cowl, basically building a streamliner marketed as MS.
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Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.
manta22
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What, me worry?




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« Reply #13 on: June 08, 2008, 10:29:36 PM »



MS can change from the cowl forward.  The body is aft of the cowl, a top chop is allowed there. Notice height is not mentioned.   It is a little hard to follow, but that is basically it, they don't want you to narrow and lengthen the part aft of the cowl, basically building a streamliner marketed as MS.
[/quote]

Ah so. To me the "body" refers to the whole car's bodywork: I guess I'll have to learn the nuances of hotrodspeak.  smiley
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Regards, Neil  Tucson, AZ
manta22
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« Reply #14 on: June 22, 2008, 02:42:31 PM »

I've been making a bit of progress on my BG/MS buildup. The R & P is mounted and the steering column is now in place. Here is some detail of how I've cross- bolted my Borgeson and Apex u- joints in the steering (the bolts fit into reamed holes but they're not fully tightened yet). I'll have a steering wheel quick- release on the end of the column tubing.

 


* Steering-_Borgeson_U-_Joint.jpg (75.15 KB, 640x480 - viewed 479 times.)

* Steering-_Apex_U-_Joint.jpg (58.85 KB, 640x480 - viewed 432 times.)
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Regards, Neil  Tucson, AZ
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