Taken from NHRASportCompact.com ....


All changes effective 7/28/03 except as noted.

All Motor
1. Vacuum pump and dry sump permitted.
2. Change minimum weight on FWD to 1,650 pounds. Decrease of 25 pounds.
3. Increase clutchless transmission penalty from 150 to 200 pounds. Increase of 50 pounds.
4. Effective January 1, 2004: Lower engine containment device mandatory.

Hot Rod
1. Vacuum pump and dry sump permitted.
2. Deck plates or welding of deck surface to increase deck height prohibited.
3. Effective January 1, 2004: NHRA accepted, aftermarket clutchless manual transmission permitted, with 150 pound weight penalty. Transmission must be accepted in advance, and must fit in the confines of existing Hot Rod class chassis and body rules.
4. Effective January 1, 2004: Lower engine containment device mandatory.

Modified
1. Change 4 cylinder (smaller than 3 liter), 1 power adder minimum weight to 2,200 pounds.
Decrease of 150 pounds.
2. Change 4 cylinder (smaller than 3 liter), 2 power adder minimum weight to 2,300 pounds.
Decrease of 150 pounds.
3. Change 6 cyl/4 cyl (3 liter or larger)/3 rotor, 1 power adder minimum weight to 2,650 pounds.
Increase of 50 pounds.
4. Change 6 cyl/4 cyl (3 liter or larger)/3 rotor, 2 power adder minimum weight to 2,850 pounds.
Increase of 50 pounds.
5. Effective January 1, 2004: Lower engine containment device mandatory.

Pro FWD
1. Effective January 1, 2004: Lower engine containment device mandatory.

Pro RWD
1. Change 6 cyl/ 4 cyl (3 liter or larger), 1 power adder minimum weight to 2,350 pounds.
Increase of 150 pounds.
2. Add 6 cyl/ 4 cyl (3 liter or larger), 2 power adder minimum weight: 2,450 pounds.
100-pound penalty for 2 power adders.
3. VP C56/Import racing gasoline accepted for 4 cyl (under 3 liter) and 2 rotor engine only.
4. Effective January 1, 2004: Lower engine containment device mandatory.

In addition to the above revisions, NHRA is looking at additional changes in the following areas: turbo/supercharger dimensions, engine displacement, and body restrictions. Any developments will be posted on nhrasportcompact.com.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Robb &raquo;</TD></TR><TR><TD CLASS="quote">Hot Rod
3. Effective January 1, 2004: NHRA accepted, aftermarket clutchless manual transmission permitted, with 150 pound weight penalty. Transmission must be accepted in advance, and must fit in the confines of existing Hot Rod class chassis and body rules.

</TD></TR></TABLE> Good for jotech!

 

http://www.nhrasportcompact.co....html

 

What's the deal with no deck plate..................this sucks I have a deck plate on my motor right now. DAMN NHRA!!! at least ride it for the rest of the season. That means I have to run Pro FWD. I need to protest that rule change

 

That's an odd rule...change, the thing about the deckplate for Hot Rod.

I honestly don't know why you'd bother...Gets kinda expensive if it starts blowing up and you can make all the useable power you need with a stock deck GSR.

Just my .02

Suprdave

 

Im trying out the GEM deck plate to see how well it works but now I guess I wouldn't run Hot Rod anymore

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Robb &raquo;</TD></TR><TR><TD CLASS="quote">Taken from NHRASportCompact.com ....


All changes effective 7/28/03 except as noted.

All Motor
1. Vacuum pump and dry sump permitted.
2. Change minimum weight on FWD to 1,650 pounds. Decrease of 25 pounds.
3. Increase clutchless transmission penalty from 150 to 200 pounds. Increase of 50 pounds.
4. Effective January 1, 2004: Lower engine containment device mandatory.
</TD></TR></TABLE>

Can somebody tell me what this is???

 

My only guess is to see people from puking the motors all over the ground...like a spill blanket of some type...

Suprdave

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">My only guess is to see people from puking the motors all over the ground...like a spill blanket of some type...

Suprdave</TD></TR></TABLE>

Thanks Suprdave, Thats what I was leaning towards also but anyone know for sure?

 

I was just going to ask, but odds are, its just an engine diaper of some sort.

 

A Lower Engine Containment device (LECD), is a device used to contain oil and debris in the event of an engine failure relating to the reciprocating mass. The "LECD" should reasonably contain any broken components, also limiting the leakage of fluid onto the track surface and under the rear tires.

&gt;NOTE: The idea's below are just idea's from other racing bodies and are not those of NHRA. They are posted to give an idea of what may be required.&lt;


Construction
The Lower Engine Containment Device shall display the following Capabilities:
The "LECD" shall encompass the lower cylinder block and oil pan area, with a minimum of four straps attaching the device. The straps are to be a minimum of 38mm (1 ½ inches) webbing of automotive quality material, attaching to the front and the rear of the engine.
A suitable ballistic layer is required, capable of containing debris in the event of engine failure. This ballistic layer, for example, could be Kevlar matt or a similar product.

The "LECD" shall have a detachable inside lining of absorption material. This absorption material should be capable of containing a reasonable amount of oil in the event of engine failure, preferably displaying oil and chemical resistance.

I would figure this is what NHRA is looking for. I think its a great idea since 95% of the NHRA races have been heavily delayed due to people blowing up and oiling the track down which can and has caused other to loose control during a run. What I find odd is that they do not require a LECD for the street classes (sport FWD and sport RWD). I would think NHRA should require it for all classes since IMO its a safety precaution to all racers not just the Pro guys. I would be pretty nervious racing after a street car blew up and oiled the track down even after the so called "clean up".

Here's a picture of what has been offered by one company for american cars. I'm sure people/ companies will custom make the setups and eventually offer them as production units soon.



Modified by Rboosted717 at 4:09 PM 7/23/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Robb &raquo;</TD></TR><TR><TD CLASS="quote">Taken from NHRASportCompact.com ....


All changes effective 7/28/03 except as noted.

All Motor
1. Vacuum pump and dry sump permitted.
</TD></TR></TABLE>


scott mohler should go 9's REAL soon

 

Quote, originally posted by Robb »
Hot Rod
3. Effective January 1, 2004: NHRA accepted, aftermarket clutchless manual transmission permitted, with 150 pound weight penalty. Transmission must be accepted in advance, and must fit in the confines of existing Hot Rod class chassis and body rules.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Arturbo &raquo;</TD></TR><TR><TD CLASS="quote"> Good for jotech!</TD></TR></TABLE>
The problem is the tranny that Jotech is designing will be in excess of $15,000 when it is completed. Most racers can not afford this Lenco based tranny and will just put more of a performance gap between the haves and have nots.

 

no deckplate? damn. looks like im gonna have a b18c deckplate engine for sale.....or maybe ill just put it in a street car with the t66...ohhhhh

 

This is what I got back from Jim when I asked about the deckplate ruling

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">We checked all the motors on cars that have run been running with us, and talked with the engine builders, and didn't see anyone that would have a problem. There never was a 3/4" deck plate rule in Hot Rod, that was in All Motor. I also believe this particular rules revision was announced in May. (I'll double check that, but it should have been effective back in May.)

We wanted this rule to coincide with the stock block and head casting rule. With stock blocks and no deck plates, we can determine that any given engine can only have "x" amount of stroke. We can also determine the max bore available for any stock block, and likewise be able to calculate the maximum displacement for any given block. Without an accurate and efficient method to check displacement, this is a way for us to control how big an engine can get.

However, we will be using a new tool in Vegas, that enables us to check bore and stroke through the spark plug hole. If this tool works as well as we think it might, we can have a way to accurately check displacement without tearing the engine down. If that happens, we will most likely take another look at the deck plate rule. We'll have to wait until after Las Vegas though.

I'm sorry for any inconvenience, but whenever we make changes, we can only make judgements based on what we see coming to our events. We have no way of knowing what's being built "out there".

If we can use this new tool, we'll likely announce any additional rule changes between Dallas and Woodburn.

Jim Skelly,
Racing Competition Director</TD></TR></TABLE>

 

I hope it gets reversed, i have a 13k dollar deckplate motor ready to be dropped into my race car. It it is not revesed then they lost another membership. Im tired of all these damn rule changes whenever they feel like it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted3g &raquo;</TD></TR><TR><TD CLASS="quote">I hope it gets reversed, i have a 13k dollar deckplate motor ready to be dropped into my race car. It it is not revesed then they lost another membership. Im tired of all these damn rule changes whenever they feel like it.</TD></TR></TABLE>

us deckplate guys arent getting any love.

oh well...there is always that bad *** street car idea

 

Why you guys dumping so much loot into a Deckplate Turbo Motor when a stock bore gsr can make tons of power...

I can justify it with all-motor, but don't understand with turbo...not hating, just asking.


Modified by Suprdave at 6:17 PM 7/24/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by earl &raquo;</TD></TR><TR><TD CLASS="quote">Quote, originally posted by Robb »


The problem is the tranny that Jotech is designing will be in excess of $15,000 when it is completed. Most racers can not afford this Lenco based tranny and will just put more of a performance gap between the haves and have nots.</TD></TR></TABLE>

Raising the bar once again. Thats how Hondas broke into the 10s, 9s, 8s....

I dont' care what they do, as long as there is something to work for and as long as Honda holds the records over the big 3.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4piston &raquo;</TD></TR><TR><TD CLASS="quote">
Raising the bar once again. Thats how Hondas broke into the 10s, 9s, 8s.....</TD></TR></TABLE>

and 7's

 

Superdave- yes a stock bore GSR can make a ton of power but a deckplate motor has many advantages as in all motor. I love the short gear ratios that you can rev due to the increased revving capabilites. Not to mention the advantages of a longer stroke if you want to, i dont personal do it but its always an option. Basically it all boils down to the fact that if everyone runs the same thing it really wouldnt be much fun nor would the sport go anywhere with out stepping outside the box and trying different things.

I just hope they can get this displacment calculator working well enough to allow them in competition. Most compitent machine shops can calculate this with little trouble at all. After ordering countless custom parts and many hours of specing stuff out i would hate to see it go to waste, my beater is a toyota truck so i cant swap it in that.

BTW what is the maximum displacement allowed in Hotrod. I run an LS crank so i was never worried about it, just curious.

 

Well, I wasnt saying that the deckplate wasnt cool. Im just saying, that your prolly going to blow a motor or something...Its going to be very expensive to replace them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Robb &raquo;</TD></TR><TR><TD CLASS="quote">

3. Effective January 1, 2004: NHRA accepted, aftermarket clutchless manual transmission permitted, with 150 pound weight penalty. Transmission must be accepted in advance, and must fit in the confines of existing Hot Rod class chassis and body rules.

</TD></TR></TABLE>

i saw that one coming from a mile away!!! good luck to jotech!!!

 

not trying to be a whinner and cry but...

what is the displacement in those mopars and ecotec's??? isnt mopar like 2.4L ??? i dont even think my 84.5, 5/8 deckplate is a 2.2 maybe a little less...they should put a limit on displacement, not how you make it get to that limit.

 

The Mopars are 2.4 liters, and all of the Ecotecs (except one) are 2.2 liter. Nelson Hoyos' Ecotec has been backed down to 2.0 liter. This whole deckplate ban makes no sense to me. I don't know where deckplates were ever a problem in people's motors. The fact of the matter is, though, is that most of NHRA's rule changes come from someone complaining about someone else's "unfair advantage".