3.5cc Tunnel World Record Holder.

[topfuel443]

Big congrats to Kentley Porter. That record stood for a LONG time with many good boaters going for it, and it finally came down. I know that was not an easy feat. Hot ****.... 74mph one way! I wish I could have been there to see/hear that!!!

Kentley, post up some info on what you used to get her done. You da man.

Had some good water today.

 

Unoffical results

 

Kentley Porter B Tunnel 65.047

Fastest pass 74.03

 

Kentley Porter C Tunnel 61.341

Fastest pass 68.40

~James

 

[Tunnelbill]

"Kentley, post up some info on what you used to get her done. You da man."

A SUPER FAST 20 Tunnel......... :lol: :lol:

 

[topfuel443]

yeah yeah... I dont want the trade secrets, just the common info. Hull? Engine?

~James

 

[K-ZAM]

Thanks James. The boat would run in the 70's every R to L pass, the slight breeze was killing me on the L to R pass!

We had to tune her down to get the records. I dicked the prop up for the Stock OS Class it was running in the mid60's.

A trifecta would have been nice. Maybe next time.

Lynx

Orlic/N.V.

Andy Brown prop

Lawless lower

3M radio box tape

Prather lead (lots)

70%nitro/10% Premium 500

Alot of listening from you guys especially Mitch Atwell he got me thinking.

And most of all my Crew Chief TUNNELBILL.

I have the video if you are interested, let me know. Will try to post.

Kentley

 

[topfuel443]

ummm....yes please. You can send the video to me if you want me to post it. I have the hosting capabilities if you dont. Must see video. [email protected]

Thanks for the info....MAN I wish I could have been there for that!!

~James

PS, were you running the sport engine on the lyn x also?

 

[Ronald van Essen]

Oh yeah

would love to SEE that pass.

Ronald.

 

[waltr]

Great job KP!

I'd also love to see the vid.

And I'm also glad to see a Lawless under the Nova.

Many have said that a K&B is faster and set all the records.Including Rod Gereghty.

I think the Lawless lowers are faster myself.

Thanks for proving it.

 

[Tim_Duggan]

Congrats on the record guys!

Pipe?

 

[Ed.R]

Congrats Kentley ! Great Job

Ed

 

[dave roach]

Love to see the video.Great job Kentley on the recorder run.

Dave Roach

 

[Tunnelbill]

Great job KP!
I'd also love to see the vid.

And I'm also glad to see a Lawless under the Nova.

Many have said that a K&B is faster and set all the records.Including Rod Gereghty.

I think the Lawless lowers are faster myself.

Thanks for proving it.

Waltr,

That was the Swweeeetttttteeesssttttt Sound I have ever heard from a O/B, Pass after Pass. The lawless is the Best... All the runs was made with the same cable, he did not break anything on the lower all weekend. When you see the vidio you can hear the RPMs he was twisting that cable. TB

 

[Geraghty]

Great job KP!
I'd also love to see the vid.

And I'm also glad to see a Lawless under the Nova.

Many have said that a K&B is faster and set all the records.Including Rod Gereghty.

I think the Lawless lowers are faster myself.

Thanks for proving it.

I have never said the K&B was "faster"......what I said was the K&B used less power the turn the cable than the Lawless did.I measured that on the little electric test stand/dyno I built to measure the drag in NR motor front oil seals.I went from oil seals to outboard lower units to cable installations.What I found out also surprized me.

The O.S. also uses the laydown design like the Lawless and it also runs like hell,so much for the difference in power to run the cable meaning much with what we presently know .It kinda makes you wonder what we are "still" missing in the whole approach we are using when it takes 40% less power to run a cable at 90 degrees of bend rather than 15/20 degrees of bend and we only break the record by less than one mile per hour.

You get enough good boaters testing and refining the same piece of equipment and they will always make it faster.

Think about it.........It only took "TWELVE" years to break Tommy Lee's .21 mod tunnel record by less than "1" MPH, [.835 mph to be exact].

All that has been proved here is KP is one dam good boater.There is no doubt about it ,KP had his sxxt together to get this done.

IMO breaking a record by .835 mph isn't exactly a slam dunk endorsement of any piece of equipment.

Tommy and I did extensive testing on both lower ends without any clear speed advantage to either one........and that was "12" years ago.

As to quality and all around reliability,no doubt the LawLess is far superior to the K&B,but significantly faster,I don't believe ".835" mph proves anything.

The boat that Tommy set the record with was heavy as 3.5 tunnels go,and the Huntsville pond was not long enough for the boat to reach top speed before getting into the lights.Several times the boat went out the back door over 70mph......it just took the motor awhile to spool up in the lights.

With 74 mph passes the record is going to be broken again.All it takes now is perfect weather,perfect water,flawless equipment and great driving.It could happen in weeks,months or even another 12 years.It is all now in the hands of the RC gods.

There isn't a record in the book that can't be broken if somebody is willing to expend the effort to do it.

 

[DON MAHER]

"There isn't a record in the book that can't be broken if someone is willing to expend the effort to do it."

Rod, well put & the absolute truth! Just to remind you ( because I know you know ) Tommy's 21 tunnel record was broken last year by Jimmy Johnson. ( 66.17 ) that is just a tick faster than KP ran. All records are made to be broken, Tommy's just took forever & a day! Great job KP

Don

 

[waltr]

Great job KP!
I'd also love to see the vid.

And I'm also glad to see a Lawless under the Nova.

Many have said that a K&B is faster and set all the records.Including Rod Gereghty.

I think the Lawless lowers are faster myself.

Thanks for proving it.

I have never said the K&B was "faster"......what I said was the K&B used less power the turn the cable than the Lawless did.I measured that on the little electric test stand/dyno I built to measure the drag in NR motor front oil seals.I went from oil seals to outboard lower units to cable installations.What I found out also surprized me.

The O.S. also uses the laydown design like the Lawless and it also runs like hell,so much for the difference in power to run the cable meaning much with what we presently know .It kinda makes you wonder what we are "still" missing in the whole approach we are using when it takes 40% less power to run a cable at 90 degrees of bend rather than 15/20 degrees of bend and we only break the record by less than one mile per hour.

You get enough good boaters testing and refining the same piece of equipment and they will always make it faster.

Think about it.........It only took "TWELVE" years to break Tommy Lee's .21 mod tunnel record by less than "1" MPH, [.835 mph to be exact].

All that has been proved here is KP is one dam good boater.There is no doubt about it ,KP had his sxxt together to get this done.

IMO breaking a record by .835 mph isn't exactly a slam dunk endorsement of any piece of equipment.

Tommy and I did extensive testing on both lower ends without any clear speed advantage to either one........and that was "12" years ago.

As to quality and all around reliability,no doubt the LawLess is far superior to the K&B,but significantly faster,I don't believe ".835" mph proves anything.

The boat that Tommy set the record with was heavy as 3.5 tunnels go,and the Huntsville pond was not long enough for the boat to reach top speed before getting into the lights.Several times the boat went out the back door over 70mph......it just took the motor awhile to spool up in the lights.

With 74 mph passes the record is going to be broken again.All it takes now is perfect weather,perfect water,flawless equipment and great driving.It could happen in weeks,months or even another 12 years.It is all now in the hands of the RC gods.

There isn't a record in the book that can't be broken if somebody is willing to expend the effort to do it.

Rod,

I was looking at the big picture of 74 mph.also running a heavy boat.

By NO means did I want to down grade Tommys 12 yo record if it appeared that way.The time span speaks for itself.It's awesome the record stood for all those years.Absolutly fantastic!

I really wasen't trying to endorse the Lawless lower either,but it came out that way. Oh,maybe just a little. I'm just tired of everyone telling me a Lawless is worthless and has never proven anything.I like em and they're straight. The passes did show it can run with the K&Bs.And now faster.

And I'm surprised you measured a 40% difference with a 90* bend. That's quite a large difference.

I wonder if engine harmonics and vibration help to free up the cable at high RPM with the lesser bend to narrow the difference. It does make you wonder what does equal them out.

Both records WERE set by 2 very exceptional drivers.That's for sure.

How long will the new mark stand? Mother nature has alot to say as to where and when too.That's the tough part.

 

[ozbryan]

**** thats quick!

i cant wait to see the vid!!!

 

[Geraghty]

I was looking at the big picture of 74 mph.also running a heavy boat.By NO means did I want to down grade Tommys 12 yo record if it appeared that way.The time span speaks for itself.It's awesome the record stood for all those years.Absolutly fantastic!

I really wasen't trying to endorse the Lawless lower either,but it came out that way. Oh,maybe just a little. I'm just tired of everyone telling me a Lawless is worthless and has never proven anything.I like em and they're straight. The passes did show it can run with the K&Bs.And now faster.

And I'm surprised you measured a 40% difference with a 90* bend. That's quite a large difference.

I wonder if engine harmonics and vibration help to free up the cable at high RPM with the lesser bend to narrow the difference. It does make you wonder what does equal them out.

Both records WERE set by 2 very exceptional drivers.That's for sure.

How long will the new mark stand? Mother nature has alot to say as to where and when too.That's the tough part.

Walt,

I absolutely took no offense to your post........I was just trying to clarify my findings about driveshaft bends and the power it takes to run them and then,as usual,I got carried away with my typing skills. :wacko:

Hell,I will endorse the Lawless lower unit........its a fine piece.IMO the only way Fred could make it better would be to make one to accept the O.S. prop bearing assembly.

If I'm not mistaken I don't think the "3.5" Lawless lower end was even being made when Tommy originally set that record.In fact the record motors we built didn't use the K&B lower unit either.The lower end we used was the Performance Model Products lower ends made by John Starks.

I still have a new PMP lower end hanging on my wall........ right next to a new Lawless.

I am just so very pleased that outboards are seeing the surge of popularity they are in IMPBA.It is good for model boating and "I love model boating".

Later,Rod Geraghty

 

[Geraghty]

"There isn't a record in the book that can't be broken if someone is willing to expend the effort to do it."
Rod, well put & the absolute truth! Just to remind you ( because I know you know ) Tommy's 21 tunnel record was broken last year by Jimmy Johnson. ( 66.17 ) that is just a tick faster than KP ran. All records are made to be broken, Tommy's just took forever & a day! Great job KP

Don

Don.........OPPS! Believe it or not I meant to mention Jimmies record in my reply to Walt just to try to start the competitive juices flowing between IMPBA and NAMBA.

Hell if we do this right the 3.5 mod tunnel record might be over 80 before we know it.

Rod

 

[Tunnelbill]

I was looking at the big picture of 74 mph.also running a heavy boat.By NO means did I want to down grade Tommys 12 yo record if it appeared that way.The time span speaks for itself.It's awesome the record stood for all those years.Absolutly fantastic!

I really wasen't trying to endorse the Lawless lower either,but it came out that way. Oh,maybe just a little. I'm just tired of everyone telling me a Lawless is worthless and has never proven anything.I like em and they're straight. The passes did show it can run with the K&Bs.And now faster.

And I'm surprised you measured a 40% difference with a 90* bend. That's quite a large difference.

I wonder if engine harmonics and vibration help to free up the cable at high RPM with the lesser bend to narrow the difference. It does make you wonder what does equal them out.

Both records WERE set by 2 very exceptional drivers.That's for sure.

How long will the new mark stand? Mother nature has alot to say as to where and when too.That's the tough part.

Walt,

I absolutely took no offense to your post........I was just trying to clarify my findings about driveshaft bends and the power it takes to run them and then,as usual,I got carried away with my typing skills. :wacko:

Hell,I will endorse the Lawless lower unit........its a fine piece.IMO the only way Fred could make it better would be to make one to accept the O.S. prop bearing assembly.

If I'm not mistaken I don't think the "3.5" Lawless lower end was even being made when Tommy originally set that record.In fact the record motors we built didn't use the K&B lower unit either.The lower end we used was the Performance Model Products lower ends made by John Starks.

I still have a new PMP lower end hanging on my wall........ right next to a new Lawless.

I am just so very pleased that outboards are seeing the surge of popularity they are in IMPBA.It is good for model boating and "I love model boating".

Later,Rod Geraghty

Rod,

Fred makes the lower unit that takes the OS prop shaft, they are sweet...

TB

 

[Mike Byer]

Wow you got that ragged old L ynx of mine to run 74mph.......good job.

 

[moparbarn]

kentley and bill,

congratulations on the record! whether it was .843 or 10 mph, killer stuff. like james, would have loved to have been there to see and HEAR those runs. where is a video? can't wait to see this one. again, congratulations on your record.