CT4 Blackwing racecar (Edited by Moderator)

I found the Fastrack News that added the CT4-V BW for T2 - https://cdn.connectsites.net/user_files/scca/downloads/000/061/927/2022 May Final TBs 04.13.pdf

Allows up to 18x10/11" wheels (f/r) with up to 295 width tires. Says "Suspension and engine components must remain OE or OEM unless noted below: ECU and all other computers must remain unmodified and must utilize OEM programming unless noted below. Carbon Fiber package RPF-PFZ allowed. Rear spring allowed #84004133. eLSD Calibration permitted." I looked up that rear spring part number on a couple of the GM parts sites and both came up as "discontinued" with no information about what it is. Any ideas?

Very interesting. Keep us posted. Who is doing the cage? The A10 part is a big surprise for a road race car. Hope you can keep it cool.

It makes sense for a road race. The auto is a smidge faster around a track then the 6MT. The Blackwing were designed for track duty. Cooling is not an issue for that transmission.

I joined just to watch this thread. Does anyone know the differences in the rear spring rate between the stock 4BW and the 84004133 part? Also, is the eLSD cal the same as the GMPP version for the Camaro?

I just looked and that spring part number seems to be discontinued.

poor-sha said:

I joined just to watch this thread. Does anyone know the differences in the rear spring rate between the stock 4BW and the 84004133 part? Also, is the eLSD cal the same as the GMPP version for the Camaro?

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Does that mean you have traded the 5BW for the 4BW? Or is that still an 'underconsideration' move?

pkincy said:

Does that mean you have traded the 5BW for the 4BW? Or is that still an 'underconsideration' move?

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I'm definitely keeping the 5BW, I'm just hesitant to beat it up too much on track and I'm really afraid of the replacement costs of the CCB rotors. The 4BW would be something I'm less concerned about beating up on track but it would still be a road car and my C7 would still be my primary track car.

Following. Stoked to see how this turns out

'Follow'ing And you're straight up for not charging us to watch.

Any news or new pictures? How about the curb weight now that it's gutted with a cage?

poor-sha said:

Any news or new pictures? How about the curb weight now that it's gutted with a cage?

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And what happened to the old pics??

Moderator edit at 1300 EST 31 Dec. 2022 - The OP mg8t7gn has (as of 13 Dec.) gone back and changed every one of his 8 posts to simply read "ok". Those non-info posts have been removed from the visible forums. The thread title and replies remain for possible interest. Moderators may wish to see the Deleted ...... forum.

Since the OP last logged in at the same date/time he essentially removed all his CF posts I doubt we'll see him again.

That's a shame - was looking forward to seeing that project through... 😕

Meh. Interesting, in a 'wish it were more interesting' sorta way. Could be as simple as enticed to becoming an 'influencer' or to finding a platform that pays for content v. merely conversing and sharing information as with this forum.