Forgestar F14 18 x 11 Wheels Front versus Rear Fitment

[ls110]

Ruh roh just ran 1.5 seconds faster on the used Pirellis. :-X. Track is dry amd there's a little heat in it now. First session this morning was 3 seconds off the sticker R7s but last session was 1.5 seconds better than bst time yesterday........ Will be interesting to see how the next session goes but humidity felt lower and car was pulling harder than yesterday. Sure would be nice to cut the tire budget. The other big factor is the gearing on these balloons seems more suited to this track.

Nice Gary. 8) Tires help but the driver makes it happen!!

 

[Roadhouse]

Ruh roh just ran 1.5 seconds faster on the used Pirellis. :-X. Track is dry amd there's a little heat in it now. First session this morning was 3 seconds off the sticker R7s but last session was 1.5 seconds better than bst time yesterday........ Will be interesting to see how the next session goes but humidity felt lower and car was pulling harder than yesterday. Sure would be nice to cut the tire budget. The other big factor is the gearing on these balloons seems more suited to this track.

Well damn! Pirellis are magic...

 

[cloud9]

Well damn! Pirellis are magic...

LOL well there were other factors, but it has me leaning toward using them more often to significantly cut my tire budget.

 

[ls110]

Tried out the 315/680s on my 10.5" Enkeis. Not sure that I needed to but I used my 6mm spacers on the front. It was a very wet day so while I was not pusing them hard the fit worked fine.

 

[cloud9]

At least it wasn't snowing ;D We're looking at record lows tomorrow around the freezing mark.....the May flowers might be in trouble :

 

[ls110]

At least it wasn't snowing ;D We're looking at record lows tomorrow around the freezing mark.....the May flowers might be in trouble :

LOL - It might as well have been snowing. With a high of 40 and on and off rain, it was ugly.

 

[Roadhouse]

Looks good, John!

 

[Wingrider]

Tried out the 315/680s on my 10.5" Enkeis. Not sure that I needed to but I used my 6mm spacers on the front. It was a very wet day so while I was not pusing them hard the fit worked fine.(SNIP)

Is there a preferred spacer brand/vendor folks would suggest, or are they all the same?

 

[cloud9]

Is there a preferred spacer brand/vendor folks would suggest, or are they all the same?

I am using Maximum Motorsports but I wouldn't think brand would matter much.

 

[ArizonaBOSS]

Progress abounds in this thread!!!

+1 on Maximum Motorsports spacers.

 

[VoodooBoss]

What's the consensus on what the offsets are on these anyway?

 

[neema]

Tried out the 315/680s on my 10.5" Enkeis. Not sure that I needed to but I used my 6mm spacers on the front. It was a very wet day so while I was not pusing them hard the fit worked fine.

Good photos. These are F14s. What width are the wheels? Thanks for posting

 

[ls110]

Good photos. These are F14s. What width are the wheels? Thanks for posting

Your comment that these are F14s made me go back and check my notes again, and you are right. These are my 10" F14s and NOT my 10.5" Enkies.

 

[Roadhouse]

Thanks for the clarification. I just assumed those were 18x11 F14s

 

[Surfergeek]

So perhaps someone can help me out here ...

I have been trying to see if it's possible to get an 11" square wheel and use hubcentric spacers (such as H&R Trak+) to make the offset correct in the front.

Can those that have been running these set-ups (1 or 2 in this thread?) share your offsets and spacer width's that are being used? Did you need to roll fenders?

I have a cortex racing xtreme grip coilover set-up with the 315 offset strut housing option and maximum motorsports camber plates and would love to run 11" square wheels if possible. If it's not I'll stick with 10.5" because the downsides to the vorshlag 11" set-up outweigh the positives of being able to do front to rear rotation without mounting/dismounting tires in my mind.

Thanks for your input!

 

[cp85gt]

I settled on a +55 fitment for some 18 x 11 CF5's all around. They're en route and I should have them on Monday. I have a set of 20mm H&R spacers which will give me about 6 mm of clearance to the strut. My struts are AST 4150's which have a bit thicker strut housing so a bit less clearance. With the additional clearance the Cortex offset struts provide, you would only need the H&R 15mm spacer, or even the 1/2" Maximum Motorsport spacer, tucking the wheels in far enough that I don't think you would have to roll you're fenders for fitment, provided you are running enough negative camber. A +55 offset is about 8.17" of backspace which is good for the rear. I think someone who has the Vorshlag fitment stated that the front backspace is about 7-3/8" with a 8-1/4" rear backspace, so I'm probably within a mm or 2 of that final fitment with the 20mm spacer.

 

[SlowJim]

I don't have any insight on 18x11 but I run 18x10 +45 with a 5mm spacer (H&R hubcentric). No problems at all. Tire rubbed at full lock without the spacer.

So perhaps someone can help me out here ...

I have been trying to see if it's possible to get an 11" square wheel and use hubcentric spacers (such as H&R Trak+) to make the offset correct in the front.

Can those that have been running these set-ups (1 or 2 in this thread?) share your offsets and spacer width's that are being used? Did you need to roll fenders?

I have a cortex racing xtreme grip coilover set-up with the 315 offset strut housing option and maximum motorsports camber plates and would love to run 11" square wheels if possible. If it's not I'll stick with 10.5" because the downsides to the vorshlag 11" set-up outweigh the positives of being able to do front to rear rotation without mounting/dismounting tires in my mind.

Thanks for your input!

 

[Surfergeek]

Thanks for the info ... Would be great if you can post up some pictures after your install. A 15MM spacer might be acceptable for track use, where a 25mm or 30mm was not for me. Currently my daily wheels are F14 that are 18x10 +45 and I use a 5mm spacer up front (H&R Hubcentric). I would also like a solution where I don't have to pull the spacer on/off to change wheels for daily track.

Which has lead me to lean towards the Ford Racing BBS wheels that are 18x10.5 +48 and call it a day. https://fordperformanceracingparts.com/parts/part_details.asp?PartKeyField=23536

But very interested to see how it works out for you before I make my final decision.

I settled on a +55 fitment for some 18 x 11 CF5's all around. They're en route and I should have them on Monday. I have a set of 20mm H&R spacers which will give me about 6 mm of clearance to the strut. My struts are AST 4150's which have a bit thicker strut housing so a bit less clearance. With the additional clearance the Cortex offset struts provide, you would only need the H&R 15mm spacer, or even the 1/2" Maximum Motorsport spacer, tucking the wheels in far enough that I don't think you would have to roll you're fenders for fitment, provided you are running enough negative camber. A +55 offset is about 8.17" of backspace which is good for the rear. I think someone who has the Vorshlag fitment stated that the front backspace is about 7-3/8" with a 8-1/4" rear backspace, so I'm probably within a mm or 2 of that final fitment with the 20mm spacer.

 

[ls110]

So perhaps someone can help me out here ...

I have been trying to see if it's possible to get an 11" square wheel and use hubcentric spacers (such as H&R Trak+) to make the offset correct in the front.

Can those that have been running these set-ups (1 or 2 in this thread?) share your offsets and spacer width's that are being used? Did you need to roll fenders?

I have a cortex racing xtreme grip coilover set-up with the 315 offset strut housing option and maximum motorsports camber plates and would love to run 11" square wheels if possible. If it's not I'll stick with 10.5" because the downsides to the vorshlag 11" set-up outweigh the positives of being able to do front to rear rotation without mounting/dismounting tires in my mind.

Thanks for your input!

I am running Forgestar 18" x 11" fronts and 12" rears with 315 (Pirelli & R7s) square. I have a 6mm spacer upfront although Forgestar was saying it was not needed, yet clearly it is for my set-up. Forgestar will not disclose their offset. I did not roll the fender and I have not had any rubbing.

 

[Wingrider]

Geez my head is spinning from all this…