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Autocross EVO - Street Modified Build

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Old Jul 20, 2007 | 01:32 PM
  #586  
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So, what you have for sale is an Evo one that is legal for SM and identical to what the big dogs run?
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Old Jul 20, 2007 | 02:32 PM
  #587  
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Originally Posted by Warrtalon
So, what you have for sale is an Evo one that is legal for SM and identical to what the big dogs run?
Yes, just need to add a simple Gurney flap. It also leaves room for a splitter under the 8 sq ft SM rule.
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Old Jul 20, 2007 | 04:05 PM
  #588  
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In SM the WING can be 8 sq. ft. regardless of splitter. The splitter area is not calculated, just has to meet size requirements.
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Old Jul 20, 2007 | 04:15 PM
  #589  
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Originally Posted by EVOlutionary
In SM the WING can be 8 sq. ft. regardless of splitter. The splitter area is not calculated, just has to meet size requirements.
Thanks for the info, is the ht. limited to 6" above the roofline? Rulebook is at home.
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Old Jul 20, 2007 | 06:01 PM
  #590  
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Yep, I believe so. Zero inches wider than door, zero inches behind rear bumper, 6 inches above roofline if memory serves me correctly. . .
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Old Jul 25, 2007 | 06:38 PM
  #591  
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And now for something below the car...

Are the following (front engine mount/brace & moustache bar) mods SM legal?



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Old Jul 25, 2007 | 07:55 PM
  #592  
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16.1.D - Drivetrain and related components (induction, ignition, fuel systems, etc.) are unrestricted except for the following limitations:
. . . .
Motor and drivetrain mounts are considered part of these allowances, and any material is permitted. The allowances of 16.1.P may be used to affix brackets, but these brackets shall serve no purpose other than engine and drivetrain mounting (e.g. they may not provide chassis stiffening).

16.1.G. Subframe connectors are allowed, but each connector must be
attached individually without any lateral components attaching
the two longitudinal frame rails. Subframe connectors may be
bolted or welded. SP allowances which authorize unrestricted
mounting of suspension components do not permit the
incorporation of non-SP-legal subframe connectors into the
mounting scheme for a Street Modified vehicle.

15.10.I. - Engine mounts may be replaced, but must attach in the factory
location(s) without additional modification or changes. Engine
position may not be changed. The amount of metal in a replacement
mount may not be increased relative to the amount of metal
found in a standard mount for the particular application. Solid
metal mounts are specifically prohibited. . .



I say the Mustache bar replacement is no problem in SM with drivetrain mounting being fairly open. I see nothing that would cause a problem there.

For the front bar, it all depends on if you can argue that the whole bar is part of the engine mount, or that the bar is a subframe connector. If you can argue either of these, then yes, I believe the front bar would be allowed also.

What does everyone else think??

EVOlutionary
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Old Jul 25, 2007 | 09:10 PM
  #593  
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Originally Posted by stimpy
The Salt Lake City ProSolo was said to be officially happening. No reason to wait, none the less. The current entry list is pretty disappointing. I just ran a normal points event in Denver this weekend and it had 164 entries; the Pro currently has 68 I think >.> Warrtalon were you at the Denver Event at Coors Field? I only saw one well-driven Evo but it looks like it was Clayton Cobb's.
Did you just drive down for an event, or are you in our region? If you're around at any other events, then come over and introduce yourself. What car were you driving?

Yeah, I'm Clayton Cobb - you can recognize my GG MR by those unique Forge BDCK inlets in the front grill, and I have magnets showing some of my sponsors listed below.
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Old Jul 26, 2007 | 10:31 AM
  #594  
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I didn't realize it was you. I happened to be in the area with an ex-Boulder native. Long story short, we decide to drive. We were in a black 95 M3 with dark grey SSRs.

I'll hunt you down at the SLC Pro

-Jon
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Old Jul 26, 2007 | 01:38 PM
  #595  
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Originally Posted by EVOlutionary

15.10.I. - Engine mounts may be replaced, but must attach in the factory
location(s) without additional modification or changes. Engine
position may not be changed. The amount of metal in a replacement
mount may not be increased relative to the amount of metal
found in a standard mount for the particular application. Solid
metal mounts are specifically prohibited. . .



For the front bar, it all depends on if you can argue that the whole bar is part of the engine mount, or that the bar is a subframe connector. If you can argue either of these, then yes, I believe the front bar would be allowed also.

What does everyone else think??

EVOlutionary
Thx for posting the specific rules EVOlutionary

My view/opinion is that it's a direct replacement for the front crossmember/mount, so it s/b allowed...

I hope we hear other perspectives as well here--c'mon guys
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Old Jul 26, 2007 | 01:43 PM
  #596  
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Imo the two Buschur pieces would be legal. However, the AMS replacement motor mount wouldn't be because of the simple fact it is "solid metal"
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Old Jul 26, 2007 | 03:14 PM
  #597  
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Originally Posted by broeli
Imo the two Buschur pieces would be legal. However, the AMS replacement motor mount wouldn't be because of the simple fact it is "solid metal"
16.1.D - Drivetrain and related components (induction, ignition, fuel systems, etc.) are unrestricted except for the following limitations:
. . . .
Motor and drivetrain mounts are considered part of these allowances, and any material is permitted. The allowances of 16.1.P may be used to affix brackets, but these brackets shall serve no purpose other than engine and drivetrain mounting (e.g. they may not provide chassis stiffening).


Actually, after re-reading this I think even the solid mount AMS unit would be legal, once again, as long as you can say the whole bar is part of the "motor mount".

EVOlutionary
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Old Jul 26, 2007 | 06:26 PM
  #598  
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How can you say that the whole bar is part of the motor mount when the stock motor mount unbolts from the stock bar? Seems like a stretch to me.
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Old Jul 26, 2007 | 06:45 PM
  #599  
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Then would you call it a subframe connector? If so, it's legal.

As far as it being part of the engine mount - the entire purpose of that bar is to locate and carry the motor mount. Due to its design it can't add much if any torsional rigidity to the front end.

16.1.P may be used to affix brackets, but these brackets shall serve no purpose other than engine and drivetrain mounting (e.g. they may not provide chassis stiffening).

Also I think it could be considered a bracket used for drivetrain mounting as allowed above? Anyone else have an opinion??

EVOlutionary
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Old Jul 26, 2007 | 11:01 PM
  #600  
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alright guys, this is in regards of the JDM bumper w/ no crash beam not being legal in SM

they do make an OEM crash beam, would this still fly? its OEM Mitsu, and the rule book requires it to be OEM

https://www.evolutionm.net/forums/sh...d.php?t=190877


thanks in advance
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