All fair points, Kurt. I think he's going to address them, because it sounds like he's going with an extra set of turbine wheels. He can wear his radials on the street and the bias plies at the track. Also, I think the point their addressing is that the DRs hit harder than a bias ply.
Thanks for the lead on tire selection man I'll definitely check them out. I'm not trying to pull wheelies or get a 1.3 second short time or anything crazy. Just want to speed my car up off the line and for the love of god finally get into the 13s. I did however smoke a ws6 transam my last trip to the track. Purely driver skill won that race. I was a better driver and I backed that up run after run. Kid didn't know how to shift at all
That's exactly how I blew out my T5 on 245 Nittos. It was a hard slam into 3rd, minus the M3.
interesting. guess ill probably pull the trigger on those nitto DR's and not slam third too hard. I am normally pretty careful about hitting third as it is so maybe it'll survive? I've probably only missed third 3 or 4 times in the year I've had the car with a t5 in it (started as an auto)
Not arguing the part about mixing tire types, but the general consensus is that a bias ply with softer side walls will absorb more of the hit. This is when comparing a bias ply that dead hooks to a radial that dead hooks.
I have ran both and I defiantly saw more wrinkling out of the bias ply. Cross my fingers, but I haven't broken anything on either.....yet.
Joe
It's debatable.
There's a trade off between getting traction and the stiffness in the side wall. The bias ply tire has a softer sidewall but more traction. The Drag Radial has a very stiff sidewall but less traction. On an equal launch when both would hook, such as on a sticky track, there will unquestionably be more shock through the drag radial. When shifting hard, there will be more shock through the drag radial. I believe that in your case the drag radial will be harder on the transmission.
However, the bias play will allow you to launch harder. So, for example, running a 1.20 60' through a bias ply (which you don't have near enough power to do) would be harder than running a 1.90 60' through a Drag Radial. I don't know where the break even point is, but I don't think you'll get there with your set up.
I know there's conflicting info in here. So, you'll just have to sort through it and make up your own mind.
There's a trade off between getting traction and the stiffness in the side wall. The bias ply tire has a softer sidewall but more traction. The Drag Radial has a very stiff sidewall but less traction. On an equal launch when both would hook, such as on a sticky track, there will unquestionably be more shock through the drag radial. When shifting hard, there will be more shock through the drag radial. I believe that in your case the drag radial will be harder on the transmission.
However, the bias play will allow you to launch harder. So, for example, running a 1.20 60' through a bias ply (which you don't have near enough power to do) would be harder than running a 1.90 60' through a Drag Radial. I don't know where the break even point is, but I don't think you'll get there with your set up.
I know there's conflicting info in here. So, you'll just have to sort through it and make up your own mind.
What's the real killer? Hard launches or third gear shifting. If my tranny will survive a hard launch better than a hard third gear shift then I think slicks are a better option. If the launch is more of a killer than third gear then maybe radials is the better option. Mostly I just want my transmission/rear end to survive 2-3 trips to the track per year. This isn't an every weekend track car so if I can make it through up to say 5 times a year at roughly 6 passes per night that's all I'm after