Looking at the bottom right quarter of attachment it looks like the 255 is all that will fit into the inner fender at full compression. Probably a better question for Roadster Shop and what mods would be needed to increase the size.

 

I agree with copo9560. The attachment states with factory wheel tubs so I take that as the limiting factor. Even at that 10" width is a lot of front tire IMO.

 

Either need to mod the inner fender, or buy wide front tubs.

 

Good idea. I've reached out for clarification.

No arguement: 10" is a good amount of front tire. But if I run minitubs, the ratio of rear:front tire grip will be off. I suspect that would lead to understeer.

I could avoid all this by skipping the minitubs which is an option, but they seem pretty awesome.

 

Pozzi recommends a rear tire only one size bigger than front to avoid under steer. Also noted you will be limited to a 255 in front, maybe a 275 with some modifications.

Definitely a good read before spending a lot of money - setting goals up front appears key here, as it should for all other mod projects

FIRST GEN SUSPENSION

 

I would think you could fix that with sway bar settings.

 

Decisions, decisions..........information overload with so many options for you to consider on your project.
245/40/18" front tire- 9.6" section width, off the shelf 8" rim with stock subframe, small spacer to get no interference from lock to lock with button head bolts on the fender side.

 

The "all in" investment may be a good value on the complete chassis. In my opinion you could have 5K plus in a 4 link rear and mini tubs pretty easy, and close to that again in the front end. All depends on what you buy, how much you do, and what you pay someone else to do.

If you dont do the chassis there are other options for the front end, like this:

TruTurn Upgrade Kit | 1967-1969 Camaro / Firebird and 1968-1974 Nova - Ridetech

The Tru Turn system is an upgraded steering system that includes steering arms, draglink, and tie rod assemblies. This upgrade will allow you to have enough clearance to run up to a 10" wide wheel with a 275mm tire!

ridetech.com

they claim 275 tire with inner fenderwell mods. If I remember right, aftermarket wide inner fenderwells are pricey. And look at the above post, there are other ways.

All the options will require other things to be used with them, so dont plan on the chassis or suspension system to be the only cost. An example is the Tru Turn system, does not work with long tube headers. So you need to make a plan and make sure things fit with each other before buying stuff, and then you will still run into issues. Very few things of this magnitude are straight up bolt on and go. Pick a brand name and stick with it, a brand with proven results. #hotrodding

 

ExtReme Camaro Inner Wheel Well '67 & '68 - Speedtech Performance USA
1967 - 1969 Camaro Anvil "Deep Tub" Fenders

 

Anvil wide tubs are the best option imo. The leadtime on Anvil parts is huge, count on roughly a year.

Speedtech wide tubs only work with their subframe afaik.

Don

 

I ran a 295/345 combo on my 69 With Anvil tubs and fenders. No significant pushing or understeer.

 

RIght now, my setup is a stock sub, DSE UCAs, SpeedTech LCAs, factory HD coils (about 400lbs/in.), QA1 adjustable shocks, Hotchkis swaybar, G-mod, and -.5* negative camber.
Rear 5 leaf springs, no sway bar.
245/45R17 Front / 275/40R17 Rear.
Handling is very neutral, maybe a hint of oversteer.