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GT350 vs. Z/28

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thePill

thePill

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What bothers me most about the z28 is the recommendations for Track Alignment.

The z28's calls for a 2-3 degree increase in... sit down...


Caster... Yes... The manual suggest that you increase the caster from 4.9 degrees to 7-8 degrees in the front alone. Among many other suggestions...

Ok... I'm not up to speed on these Multimatic F1 Struts so let me know if these crazy things somehow increase the caster... Probably not right???

My concern IS, Chevy likely had the suspension optimized for these unsupervised Track events. Like Nurburgring and the 38 test Motor Trend did... I believe they are optimizing the geometry before hand. The Ring was likely set up to these conditions as well. Probably exactly where they honed them in from.

Does anyone have any clue how much needs to change to increase caster on a MacP system by 2-3 degrees? Plates?


Edit: The z06 test comes to mind... The alignment shop at Chevy forgot to check the alignment... Well, at first I found humor in that... What exactly do they do at the alignment shop... Then I look at the Track settings for the camber, caster and toe. Ah Ha!!! They were upping the ante!!! Track specific geometry...

It's possible other manufacturers do this, it's a bad practice. However, Chevy took it a step further. Usually the cars are prepped to the track and then run. Chevy got to prep, run, re-prep and re-run, re-run, re-run until they won.
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Does anyone know the benefits of optimizing suspension geometry while a 10-12 point cage is present?

Can anyone fathom the performance benefits in doing so?

DO NOT disclose Nurburgring Lap times for market gain. It is misleading...

Ford can't compete with a cheater unless they become cheaters themselves...

You want to beat a cheater??? Expose them... Tell the customer why you don't advertise Mustang Ring times. Be honest about the differences in that GT350 and the OEM GT350.
 

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MacP equipped cars will ALWAYS lift that tire. I specifically said that, a cage assist in this area but still doesn't cure it.

Stuntman was WRONG, both Pony Cars need cages to run the Ring. Especially the 4000lbs z28.

Consensus being the z28 is too good for chassis flex (WRONG) and a cage wouldn't help at the Ring (WRONG AGAIN).
Alright I get what you were saying. Actually it looks like you guys were mostly talking about different things the whole time and not really answering each others questions.
 

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Sasuketr

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Was gt350 a pace car in that video? It got owned by couple of gt3's lol! Looks like a little out of its league in that video!
 
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Was gt350 a pace car in that video? It got owned by couple of gt3's lol! Looks like a little out of its league in that video!
That was multiple classes testing. GT, GS, GTD and I thought there were Prototypes or something. They don't wanna go too fast and get a restriction right off the bat... because IMSA is watching and they will do that.
 
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ALL 2015 GT350R's HAVE BEEN SPOKEN FOR AND SOLD.

ALL 37 2015 GT350R's ARE GONE...
 

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Oh FFS. this is not a college class and we don't have to cite every single piece of information that we get, especially when the information is on our own forum
Wrong. If it's from a member of this forum who posted it, they should get the credit. How hard is it to say, hey I just read all 2015 GT350 are sold. It's called respect for other members.
 

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Wrong. If it's from a member of this forum who posted it, they should get the credit. How hard is it to say, hey I just read all 2015 GT350 are sold. It's called respect for other members.
Jesus christ man! The man just said all cars are sold or spoken for! He didn't say he heard or his sources said so. Try going into other threads instead of following thepill
 
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Overall length (in / mm): 188.3 / 4784
Overall width (in / mm): 74.7 / 1897
Overall height (in / mm): 53.1 / 1348
Track, front (in / mm): 62.5 / 1588 (LT)
63 / 1601 (SS)
Track, rear (in / mm): 63.7 / 1617 (LT)
62.9 / 1598 (SS)
Headroom (in / mm): 36.6 / 930 (front)
Legroom (in / mm): 42.6 / 1083 (front)
BAM!!! thePill was the only one that called for a 110.5. Any takes on how close my 3850lbs prediction is?
 
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