Nasa TT/TD disccussions

[enivid]

Originally Posted by Iwannajag

We are running Maxxis RC1 in Spec86 (which is PTD/TTD). I run the 255's. Because of the size penalty, I can run 225 Hoosiers R7, which are more like 245 for less points (+10-4) than the Maxxis (+6+1).


We are dyno reclassed at 2850lbs with 180whp.


The 86 base PTD weight is 2935 and with the new PW ratio of 15:1 for TTD for 2017, I would expect the base weight to go up even more.

How many HC's are you getting from the R7? I might dump the maxxis next year and run those.

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[Iwannajag]

i have 25 heat cycles on them and they are just about done. i bought them as take offs with 3 heat cycle. i probably have 40 heat cycles on the RC1 and still have more to go. they do get greasy at about 15min in high heat

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[zdr93523]

Originally Posted by Iwannajag

i have 25 heat cycles on them and they are just about done. i bought them as take offs with 3 heat cycle. i probably have 40 heat cycles on the RC1 and still have more to go. they do get greasy at about 15min in high heat

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Like I said, awesome tire. They're not the fastest thing around, but for the points they are very good. @enivid in TT3+ they're irrelevant but in B and below they are really good.

[Takumi788]

I was at championships at Watkins over the weekend. Lousy twin turnout (2) and a lot of crashes but over all a good experience.

[enivid]

Bump

The TT4/ST4 rules were released recently. I wasn't going to run in that class until I read the rules. Now I'm 99% sure I'll be in TT4.

The tire restrictions are awesome. Ban on non-DOT, tire size limitations, huge penalty on A7's.

And with the 12:1 ratio and avg hp calc, I can run a lot more power then I initially realized.

[zdr93523]

Originally Posted by enivid

Bump

The TT4/ST4 rules were released recently. I wasn't going to run in that class until I read the rules. Now I'm 99% sure I'll be in TT4.

The tire restrictions are awesome. Ban on non-DOT, tire size limitations, huge penalty on A7's.

And with the 12:1 ratio and avg hp calc, I can run a lot more power then I initially realized.

This is rather intriguing. Super rough calculations put it around 254 avg. whp with 245 or smaller tires. Hmmmmm. An SC 86 is going to be a very fast TT4 car.

[CSG Mike]

Has anyone dyno reclassed into TTD? Does this make the minimum competition weight go away?

[enivid]

Originally Posted by zdr93523

This is rather intriguing. Super rough calculations put it around 254 avg. whp with 245 or smaller tires. Hmmmmm. An SC 86 is going to be a very fast TT4 car.

Compared to what we did in TTB, you can now run a gutted car and still add more power. There's already a s2k guy complaining in the nasa forums that they are now at a disadvantage. The s2k's now belong in TT5 but of course they are going to have to wait till 2018 for that.

[zdr93523]

Originally Posted by enivid

Compared to what we did in TTB, you can now run a gutted car and still add more power. There's already a s2k guy complaining in the nasa forums that they are now at a disadvantage. The s2k's now belong in TT5 but of course they are going to have to wait till 2018 for that.

Their tears taste delicious! The tables have turned.

I'm excited for this coming season. I'm planning on ST3 but we'll see where everyone falls and how many ST2 cars bump to ST1 or if any ST3 bump to ST2. I think it will be fun to have a 7-10 car ST3 field and the car should be a very fast ST3 car.

[zdr93523]

Originally Posted by CSG Mike

Has anyone dyno reclassed into TTD? Does this make the minimum competition weight go away?

The cars are TTD stock so a reclass wouldn't be an option but the class power to weight ratio still stands.

[CSG Mike]

Originally Posted by zdr93523

The cars are TTD stock so a reclass wouldn't be an option but the class power to weight ratio still stands.

Not an option or not allowed?

[OkieSnuffBox]

Originally Posted by CSG Mike

Not an option or not allowed?

If it's allowed, you'll likely take weight:power penalty.

That's how come Emilio @ 949 and the Miata guys went back to points builds as Greg kept penalizing dyno reclass Miatas so hard.

[CSG Mike]

Originally Posted by OkieSnuffBox

If it's allowed, you'll likely take weight:power penalty.

That's how come Emilio @ 949 and the Miata guys went back to points builds as Greg kept penalizing dyno reclass Miatas so hard.

I see.

That minimum competition weight of 2940 is absurdly high though. I'm not even CLOSE to the P:W cap, even with full bolt ons. I'd much rather make the bolt-on points go away...

[zdr93523]

Originally Posted by CSG Mike

I see.

That minimum competition weight of 2940 is absurdly high though. I'm not even CLOSE to the P:W cap, even with full bolt ons. I'd much rather make the bolt-on points go away...

Yea, that minimum weight for our cars has always been ridiculous.

I've heard of others dyno reclassing into the same class for that reason but I'm not sure if there's a ton of advantage. The major reason would to be just what you said, get the power adder and weight points to go away. I was 2905lbs this year with the S/C, cage, 2 seats, windows still in the car including my 225lbs. I plan on being about 100 lbs lighter next year, but I'm running Super Touring / TT2 / TT3. My car should be a very fast ST3 car. I moved up to those classes to get away from the mod points. TT4 is going to be a much better place for our cars. If you use the A7 tire, you would be a competitive NA TT4 car for sure! Then you're fairly free to mod as you wish. Tire > HP