N/A RT 16" wheels on a TT

**HilbillyHomeboy** · 03-13-2012, 01:17 PM

What are the potential risks here? Let's assume these are true take-offs(wheel/tire combo) from a non turbo RT. Are we talking about damaged VCU territory, or a speedo/tach that reads incorrectly?

Jeremy

**Hans@GZP** · 03-13-2012, 01:21 PM

why would r/t 16's damage a vcu?

**HilbillyHomeboy** · 03-13-2012, 01:31 PM

I was unsure if the rolling diameter would make a difference. They're all matched to each other, so I ASSume it would be ok, but figured I'd poll the forum for info.

Jeremy

**R/T93** · 03-13-2012, 01:39 PM

Originally Posted by HilbillyHomeboy

I was unsure if the rolling diameter would make a difference. They're all matched to each other, so I ASSume it would be ok, but figured I'd poll the forum for info.

Jeremy

You will be fine if the tires are all within a few mm of each other in diameter.
Also all 3s 16x8's clear 1st gen TT brakes!

Sent from my ADR6350 using Tapatalk

**HilbillyHomeboy** · 03-13-2012, 01:53 PM

Thanks!

I knew they cleared the brakes fine, just wanted to make sure there was no potential damage from running them rather than the stock 17's.

Jeremy

**IPD** · 03-13-2012, 04:33 PM

r/t is correct. rolling diameter is virtually identical between all stock sizes.

**j2k4** · 03-15-2012, 09:15 AM

Speedo/tach issues aside, I've always wondered why a VCU should care what the tire diameters are as long as they're equal.

All it knows is that it's turning, right?

**IPD** · 03-15-2012, 10:46 AM

Originally Posted by j2k4

Speedo/tach issues aside, I've always wondered why a VCU should care what the tire diameters are as long as they're equal.

All it knows is that it's turning, right?

correct. if the rolling diameters are all the same--it doesn't matter if they're 3" or 3'.