Advantages and disadvantages of stretching the C4 wheelbase?

[rockytopper R.I.P 5-13-2017]

I'm as 'old school' as one can get... When I owned my '70 Roadrunner -F60-15 Polyglas tires - with NO power Steering, but I had posi.. I even used this technique when parallel parking..

I was using the technique as late as 1987 with my DPS style 302 fox body sedan lol badest thing on the road at the time ran 13ish second qtr with 210 hp 5 speed lol. But very light in the seat lol and no way as thimble as my 1985 IROCZ. Both rated to 140 and 145 top speed but the stang was a hand full past 120 the IROC was 1 finger all the way to the top even if it took a little longer to get there lol...

[NickP]

There is no fn way to make a try-5 handle like a Corvette, but if it drove like a 96 Impala SS that would be great.

WooHoo! 2+ tons on a .9" longer wheel base than a trifive with a power to weight ratio of 106 watt/kg / 48.1 watt/lb. Having said that, it is a nice ride for getting groceries.

[chevynut]

WooHoo! 2+ tons on a .9" longer wheel base than a trifive with a power to weight ratio of 106 watt/kg / 48.1 watt/lb. Having said that, it is a nice ride for getting groceries.

Yeah, that'll work just fine. I just don't understand this constant whining about the "deficiencies" of the C4 setup. IMO it's far better than most anything out there for a tri5. Kyle Newman proved how well it works.

http://www.hotrod.com/articles/1208p...ine-autocross/

Del Mar Goodguys 2012
Street Machine Autocross Results

Driver:	Car:	Best lap:
1. Mary Pozzi	’72 Chevy Camaro	31.105
2. Aaron Ogawa (manufacturer)	’70 Dodge Challenger	31.113
3. Brian Hobaugh	’68 Chevy Camaro	31.569
4. Gerald Lum	’71 Chevy Camaro	31.913
5. Kyle Newman (manufacturer)	’55 Chevy Bel Air	32.321
6. Brett Campbell	’67 Chevy Camaro	32.530
7. Kyle Newman	’57 Chevy 210 wagon	32.656
8. Brandy Morrow (manufacturer)	’70 Chevy Camaro	32.810
9. Dick Eytchison	’65 Chevy Chevelle	33.362
10. Mike Wright	’69 Chevy Camaro	33.507
11. Chris Meyer	’70 Chevy Camaro	33.610
12. Chris McCrea	’69 Chevy Camaro	33.928
13. Roy Rozelle	’69 Chevy Camaro	34.024
14. Gregg Blumdell	’69 Chevy Camaro	34.257
15. Paul Alderman	’70 Chevy Camaro	34.309
16. Tom Kamman	’69 Plymouth Barracuda	34.334
17. Mike Young	’65 Ford Mustang	34.515
18. Allen Palmer	’59 Chevy Corvette	34.618
19. Robert Hall	’68 Chevy Camaro	34.662
20. Bryce Baumgart	’65 Ford Falcon	34.817
21. Richard Trujillo	’69 Ford Mustang	34.892
22. Aaron Raymond	’69 Chevy Camaro	35.118
23. Robb McIntosh	’69 Chevy Camaro	35.123
24. Nick Herrington	’67 Ford Mustang	35.150
25. DJ Arerill	’71 Ford Mustang	35.393
26. John Wityak	’65 Ford Mustang	35.724
27. Tim Callahan	’66 Chevy Nova	35.740
28. John Butler	’66 Chevy Chevelle	35.889
29. Tray Borgen	’69 Chevy Camaro	36.028
30. Tony Evans	’72 Chevy Camaro	36.190
31. Mike Fitzsimmons	’67 Pontiac Firebird	36.913
32. Dennis McNeil	’72 Chevy Chevelle	37.338
33. Tommy Wisdom	’68 Dodge Dart	37.831
34. Frank Temblador	’69 Chevy Chevelle	37.832
35. George Reiss	’72 Chevy Chevelle	39.328
36. Leonara Bridges	’72 Plymouth Barracuda	39.515
37. Alex Nine	’71 Datsun 240Z	40.512
38. Paul Leeds	’66 Ford Mustang	43.298

[chevynut]

And here's the results from the 2013 Del Mar Autocross:

http://www.hotrod.com/articles/2013-del-mar-goodguys/

SM Greg Thurmond 64 Chevy Corvette 54.086 PRO
SM Gregg Blunder 69 Chevy Camaro 54.385
SM Kyle Newman 55 Chevy Bel Air 54.486
SM Casey Cronin 68 Chevy Camaro 54.841
SM Robert Pierik 71 Chevy Camaro 55.345
SM Dan Weishaar 70 Dodge Challenger 55.37
SM Rodney Prouty 68 Chevy Camaro 55.414
SM Tom Kamman 69 Plymouth Barracuda 55.452
SM Matt Alcala 69 Chevy Camaro 55.61
SM Brianne Maier 66 Ford Mustang 55.65
SM Bob Gawlif 71 Chevy Camaro 56.134
SM Steve Rupp 68 Chevy Camaro 56.233
SM Jane Thurmond 64 Chevy Corvette 56.4
SM Tdd Vierra 56 Chevy Wagon 56.521
SM Chris Meyer 70 Chevy Camaro 57.574
SM Robbie Conklin 68 Chevy Chevelle 58
SM Gerald Lum 71 Chevy Camaro 58.091
SM Dick Eytchison 65 Chevy Chevelle 58.35
SM Chad Humphreys 69 Ford Mach 1 58.516
SM Kyle Newman 57 Chevy 58.715
SM Dennis McNeil 71 Chevy Chevelle 59.118
SM Richard Trujillo 69 Ford Mustang 59.249
SM Aaron Raymond 69 Chevy Camaro 59.426
SM Mike Fitzsimmons 67 Pontiac Firebird 59.667
SM Nick Herrington 67 Ford Mustang 59.932
SM Mike Young 65 Ford Mustang 60.028
SM Evan Osborn 67 Chevy Camaro 60.281
SM Robb McIntosh 69 Chevy Camaro 60.342
SM Ralph Hollis 70 Pontiac GTO 61.093
SM Christian Dilauro 69 Chevy Camaro 61.134
SM Chris Humphreys 71 Chevy Camaro 61.203
SM John Barkley 72 Chevy Camaro 61.242
SM Tim Davis 66 Ford Mustang 61.524
SM Chuck Rust 65 Chevy Covair 61.783
SM George Reiss 64 Pontiac Lemans 64.047
SM Mike Colon 69 Chevy Camaro 64.13
SM Jerry McNulty 65 Ford Mustang 67.04

[NickP]

Hmmmmm, I didn't see any 1996 Impalas in the two lists. Whaaaaaaaaaat's up with that?

[rockytopper R.I.P 5-13-2017]

Hmmmmm, I didn't see any 1996 Impalas in the two lists. Whaaaaaaaaaat's up with that?

Probably because Good Guys don't let anything in newer than 1972 in the gate except on Sunday's for fun run AX.

The ole long boat impalas apparently hold there on this one is making short work of a C5 and some other exotics. Of course none of this proofs anything a skilled driver can make up for hardware shortfalls lol. Example I am the weak link in my cutlasses AX performance.....
https://www.youtube.com/watch?v=_lJHBujAEdQ


Newmans 55 is pretty sweet, he mentions running 17/275 tires in front and attempted to go 295/18 but said he had rubbing issues. It appears in most of his road course and AX vids he is running the 275. I Only see the bigger wheels in the photo shoots.

[chevynut]

The ole long boat impalas apparently hold there on this one is making short work of a C5 and some other exotics. Of course none of this proofs anything a skilled driver can make up for hardware shortfalls lol.

Yes, the driver certainly is a factor. But if the car lacks the performance, the driver can only do so well and it seems Kyle Newman did pretty good. And we don't know how good of an autocross driver Kyle is either. It would be cool to see Mary Pozzi drive Newman's car and some of the others so you could compare the cars.

But if RD is so concerned about autocrossing with all of this nitpicky shit he keeps bringing up, he'd be more concerned about the CG of his car.

[55 Rescue Dog]

I owned, and autocrossed 2 Impala SS's. They are actually a blast to autocross, and do quite well for a full size car stock, even with the extra weight, it is nimble, and fun to toss around. How many times have you autocrossed before Cnut, and NP?

[chevynut]

How many times have you autocrossed before Cnut, and NP?

That's irrelevant to the discussion about C4 suspensions, isn't it RD? How many times have you autocrossed a tri5 with a C4 suspension?

Maybe you should just build your car and if you don't like it, sell it. Or you should find someone or even TALK to someone who owns one (like Kyle Newman) and get the straight scoop from them. Then you don't have to agonize over all of these phony "issues" you keep hallucinating about.

[NickP]

I owned, and autocrossed 2 Impala SS's. They are actually a blast to autocross, and do quite well for a full size car stock, even with the extra weight, it is nimble, and fun to toss around. How many times have you autocrossed before Cnut, and NP?

In the late 60's, every weekend if possible. Was I any good, no. Did I enjoy it, yes. Why don't I do it now, no car to do it with. Would I cut up a trifive for the express purpose, no. Would I use a C4 under my next project, yes if I so desired to build again. Your inference relative to my personal experience in another attempt to belittle or instigate, goad or otherwise instill hostility is duly noted and ignored. Next question?