<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MrParks &raquo;</TD></TR><TR><TD CLASS="quote">160mph car in front of you with holes.... </TD></TR></TABLE>
LOL thats funny

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tepid1 &raquo;</TD></TR><TR><TD CLASS="quote">If you have access to a water jet that would work best.</TD></TR></TABLE>
we have a CNC laser so it makes it even easier! i am trying to come up with my own design for the holes, something that isnt just a plain ol' ho' lol

 

Cutting holes in your bumper is not a diffuser. It's not even close to the same thing, thats just butchering the bumper.

http://en.wikipedia.org/wiki/D...ve%29

This is a diffuser from a Ferrari F430:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MrParks &raquo;</TD></TR><TR><TD CLASS="quote">160mph car in front of you with holes.... </TD></TR></TABLE>

GT4067 = 157mph

GT42R = 160mph

 

if any body kit companies were smart, they woudl start looking at ways to make car rear defusers simular to the ferreri ones to bolt on to cars like ours.

 

Which do you think is really more effective? Cutting holes in a bumperor the rear diffuser on a car that produces over 600 pounds of downforce and cost over a quarter million dollars?

Instead of cutting up bumpers, what about skinning the bottom of the car with aluminum panels? It's a little more involved, but in the end could be much more effective at reducing drag. It could also help reduce lift/create downforce depending on the rake of the car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99_GS-T &raquo;</TD></TR><TR><TD CLASS="quote">Which do you think is really more effective? Cutting holes in a

Instead of cutting up bumpers, what about skinning the bottom of the car with aluminum panels? It's a little more involved, but in the end could be much more effective at reducing drag. It could also help reduce lift/create downforce depending on the rake of the car.</TD></TR></TABLE>

i thought of this also and concluded that without a really good front splitter and other supporting mods you would get lift but not that much. you would have to do only certain sections underneath the car

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MrParks &raquo;</TD></TR><TR><TD CLASS="quote">i never really liked just putting holes in the rear bumper, this is the way i did mine and seem to work pretty well

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

IMO, this is the most graceful way of handling the issue. I had thought about this a while ago, but never bothered.. but now I am re-considering it...

I guess Im just not a fan of hacked hole-sawed bumpers even if they are functional.

 

i hate the holes in my bumper!! but after my bumper got ripped off the car at 150mph i figured i needed to do something


there is so much stuff on my car i wish i could redo. oh well.

 

Ghostworks funny car method is genius

 

those bumper holes whether they work or not is a nice way of yelling to the cops, " hey guys, pull me over and bone me in the *** cuzz im a racer" so id rather not destroy a bumper like that, whether i gain a 1/10of a sec or not.

 

the funny part about all this........

Some redneck from New Zealand flat panned his CRX, set a top speed record yet also boiled the gas in the gas tank.

That NZ bloke was named Doug.

He cane to the USA with with ideas and created a company, some here might have heard of it........

HONDATA

You think these ideas are new? They are 10 if not 50 years old!

 

I made a belly pan on kenny's civic in '99 when we set the record in Pomona at 9.68.

 

Alot of you guys are coming up with ideas from the Indy and LeMans race car teams.

Sheeting the bottom of the car with aluminum or something comparable has been done in Road Racing for quite some time. It allows the air to flow faster and more smooth because it doesn't have all the ripples of the undercarrigage to interfer.

With my thoughts to the rear "holes". They will probably help. Are all of them neccessary? No.

The rear diffusers like what you see on 300zxs, Supras, RX-7s, Ferraris, etc etc etc are either stock or aftermarket and they are designed for a couple purposes. To suck the *** end down so it stays planted and to help move the air the easiest of ways.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DSMJim &raquo;</TD></TR><TR><TD CLASS="quote">Cutting holes in your bumper is not a diffuser. It's not even close to the same thing, thats just butchering the bumper.

http://en.wikipedia.org/wiki/D...ve%29

This is a diffuser from a Ferrari F430:
</TD></TR></TABLE>

that's the diffuser alright

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast2camciv &raquo;</TD></TR><TR><TD CLASS="quote">^^ i want to do that exact same thing on my teg...do you have a full bumper shot? curious how the overall look is..</TD></TR></TABLE>

I didn't forget about you bro!

Here you go....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DSMJim &raquo;</TD></TR><TR><TD CLASS="quote">Cutting holes in your bumper is not a diffuser. It's not even close to the same thing, thats just butchering the bumper.

http://en.wikipedia.org/wiki/D...ve%29

This is a diffuser from a Ferrari F430:
</TD></TR></TABLE>

Correct, a real diffuser accelerates the air under the rear of the car, which causes a low pressure area and creates downforce on the rear of the car. You guys are just cutting holes in the bumper to reduce drag.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tepid1 &raquo;</TD></TR><TR><TD CLASS="quote">

I didn't forget about you bro!

Here you go....

</TD></TR></TABLE>
thanks, i really like the look of those alot better than just cutting holes in the bumper...im sold.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony413 &raquo;</TD></TR><TR><TD CLASS="quote">i thought of this also and concluded that without a really good front splitter and other supporting mods you would get lift but not that much. you would have to do only certain sections underneath the car </TD></TR></TABLE>
Wouldn't this just depend on the angle of the car though? Putting a rake on the car should actually make for slight downforce.

Although I know that to fit the 24.5" slicks on many of the Hondas without cutting the fenders means jacking up the front pretty high.

 

well well.

i decided to put this theory to the test. went to the track friday with my teg went 140mph at best .

then sat night cut 3 3inch holes both sides of the bumper & car went

141.47mph
143.59mph

with that said it does help. aslo 60ft was thr same both nights.
hope this helps
put the holes in so iu could be cool like the rest of u "PRO" guys

 

hmmm 2mph is a crazy difference! could there really be enough drag to effect mph like that?
any difference in 1/8 mph?

 

no 1/8 mile was about the same right around 110mph.

didnt really compare those to hard when looking at this test, just wanted to know et speed.

though i was thier trying to get a better et witch we did i was basically working on 1st 2nd gear boost levels.

boost never went over 25psi both nights. so i know the results are real.

so the car had a faster ET time & ET mph ( 3 inch hoels FTMFW )

 

does anyone make a carbon fiber two piece one like the golden eagle "diffuser" covers?

 

i was hoping 1/8mph would be the same to show purley the difference that the holes have made.

 

here are the carbon fiber and carbon kevlar "diffusers"

http://lighterfaster.com/13163.html

can anyone else vouch for crx12 or lighterfaster.com ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh2 &raquo;</TD></TR><TR><TD CLASS="quote">here are the carbon fiber and carbon kevlar "diffusers"

http://lighterfaster.com/13163.html

can anyone else vouch for crx12 or lighterfaster.com ?</TD></TR></TABLE>

Yup. I have spent over $500 with him thus far and he will be getting another $900 or so from me in a few weeks.

Adam is a true professional business man.

I will stand by his word any day of the week.