Competition SFI approved clutches.......

[BWillard]

Just been thinking that since alot of guys don't have an SFI approved clutch setup to pull with, does this mean that the blankets are out too? Will this mean that we'll all have to get approved clutches? Maybe this has been covered before, but I can't find anything on it.

 

[Sled Puller]

If you are running DHRA Super Street, or Mod, you will have to have a SFI clutch and a blanket.

The street class, is ok, as long as you adhere to the 4500 rpm limit.



05 rules will be posted soon.

 

[Hammer]

The street class, is ok, as long as you adhere to the 4500 rpm limit.

Ok,

Since I see no one bit on it yet Sleddy I'll be the person to ask you the hard question now...



How do you propose to make all the street puller owners adhere to the mandated "4500rpm" limit?.



Its obvious to me as a newbie out there this year there were a big number of the "street" trucks revved way beyond the limit you are trying to mandate. You and I both know without some sort of RPM limiting device guys will push the limit.



This is something to think hard on while your doing your rules... ..... Andy

 

[fest3er]

Andy, one way to verify the RPM limit during tech inspection is to start the engine and mash the go pedal to the floor. Also, isn't it possible for tech officials to 'impound' a truck immediately after a pull if they think rules were violated (for example, it's obvious from the sound of the engine that it was turning much faster than 4500 RPM)?



But you do bring up an interesting point. How about an RPM-limit safety device? If the engine exceeds a preset RPM, the device activates the kill system. This could be used to enforce the 4500 RPM limit in the lower classes, and all owners could use it as a 'runaway' safety device as in, "My engine will typically run up to 5800 RPM, so I'll set the limiter to kill the engine if it ever reaches 6200 RPM. "



N

 

[BWillard]

If you are running DHRA Super Street, or Mod, you will have to have a SFI clutch and a blanket.

The street class, is ok, as long as you adhere to the 4500 rpm limit.



05 rules will be posted soon.

Not to start a fight but, if you have an SFI approved blanket ("BLOW PROOF") why would you need both? I'm kinda stuck on the line between street class and super street so that means I'll have to pull the clutch, get an SFI approved one AND retain the "I guess not so BLOW PROOF" blanket! Again I don't want to start a fight but a blanket is either BLOW PROOF or it's not! Are you questioning the SFI approval of the blanket or the clutch? I think safety regulations are very important to keep a sport like this growing but if something that is SFI approved is thought to be NOT safe enough, where will it end? Most of the guide lines are setup to keep people in the right class so everyone has a chance to be competitive and it all goes back to he who has the most money wins!!!!



I have plans on building a FULL MOD. truck and I have no problem building it to rule spec. However there are alot of street driven trucks that will have to spend ALOT of money for SFI clutches to be able to pull on the weekends.

 

[Sled Puller]

The blankets are not blow proof. Even an SFI clutch could come apart.





Bwillard quote:

"However there are alot of street driven trucks that will have to spend ALOT of money for SFI clutches to be able to pull on the weekends"



Another way to look at that, is we are asking the pullers to spend alot of money to keep everyone out of the hospital, and the courtroom, so we can continue to pull on the weekends.



We feel the safety rules are reasonable for the horespower level that is leading the classes. If someone can't afford the safety equipment for a certain class, then they need to stay one class down until they can.

 

[jwilliams3]

Safety rules will relax if it affects the entry money.

JMO

 

[JDailey]

I'm with you Gene.



Justin-Only ignorant people have that attitude.

 

[Sled Puller]

Hhehe!

Justin, not going to happen. The Diesel pullers have gotten away with slipshod safety since I started pulling, in 2000. I am guilty of it myself.



I know what it costs, I have an $1800 clutch, that I can not use in MY class!! So I feel the pain!



BTW, that clutch is for sale, if anybody wants to use it in a low power/low rpm application. :{

 

[BWillard]

So what are our options for these clutches and who will be making them? I heard that Haisleys is making one... ... streetable?

 

[jwilliams3]

Gene,

How many pulls do you guys have signed on for the 05 season?

No BS answer please.

 

[BWillard]

The blankets are not blow proof. Even an SFI clutch could come apart.



That's what I mean! Where will it stop? :-laf It is either approved by SFI to be safe or it isn't! Everything can come apart but, I'm not talking about the 7-8 trucks in the country that are turning 8000RPM and making 2000ft. lbs.



I can see it now for 2006: All pullers are to have an SFI approved clutch, bellhousing, blanket, floor pan, firewall, and armored suit! :-laf



Just kiddin'



I just think that if an SFI seal is on something, that it was..... or should have been tested to be safe for it's application!

 

[Sled Puller]

You have no idea how close bell housings were to being a rule for the middle class!!



Check with Haisleys, Scheids, EEP, and SBC for starters.



Justin, I will release the schedule when it is completed.

 

[Sled Puller]

05 rules will be posted by this evening, on www.dhraonline.com

 

[Smokin Dodge]

So in the street class are they allowing adapter plates for turbos it only says must be a single.

 

[Sled Puller]

You read it correctly.



Be sure to double check your safety requirements, for your class.

 

[supersonic]

No adapter, limited by inducer size only, talked over heavily at the meeting this is what they decided on.

 

[BigBadDodge]

Somebody is going to get rich selling these SFI Clutches !!!



Who is runing the group purchase :-laf



BBD

 

[BigBadDodge]

So what about all of us that have the dual disk pulling clutches already that aren't SFI rated. Nobody is gonna want to buy them since there not SFI rated !!!! Perhaps who ever sells the SFI rated clutches or the person we bought ours thorough would be willing to cut us a deal for the upgrade.





I know my EEP pulling clutch only has about 15 hooks on it who wants to buy it ????



BBD

 

[Big MAK]

fwiw Peter at SBC seems pretty reasonable about upgrades. Just a fraction of new clutch costs. Hopefully the same applies to the SFI rated upgrades.