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Double stack- hold the cheese - Printable Version

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+--- Thread: Double stack- hold the cheese (/showthread.php?tid=4284)

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RE: Double stack- hold the cheese - Rox_imp - 09-19-2021

103rwhp and 75ft lbs? That's about what I got with the Guhl tune, open airbox and a full exhaust. Weird how tunes are illegal but bigger throttlebodies isn't.

Double stack- hold the cheese - PowerDubs_imp - 09-20-2021

Define open airbox? Did you remove the airbox, did you do anything with the stock velocity stacks?

These are still stocked throttle bodies, I am just switching out the velocity stacks for a new design.

I would like to see your dyno chart if your numbers are close to what I achieved.

I haven’t seen anyone else show that they have hit 100whp yet.

Did you do it on the Dynojet?

Do you have the actual run file?

if so I can do an overlay


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RE: Double stack- hold the cheese - E11even_Hunnit - 09-20-2021

In 4 dyno numbers as well...

I too, thought I was easily at the 100WHP mark with Guhls/Exhaust/TSR air funnel, until I found out that PD(with cams) is barely breaking 100HP himself with his setup Huh

RE: Double stack- hold the cheese - Rox_imp - 09-20-2021

(09-20-2021, 05:29 AM)PowerDubs_imp Wrote: Define open airbox? Did you remove the airbox, did you do anything with the stock velocity stacks?

These are still stocked throttle bodies, I am just switching out the velocity stacks for a new design.

I would like to see your dyno chart if your numbers are close to what I achieved.

I haven’t seen anyone else show that they have hit 100whp yet.

Did you do it on the Dynojet?

Do you have the actual run file?

if so I can do an overlay


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Open airbox as in a de snorkel and a slight mod to the venturi opening in the box. Just gives a less restrictive flow of air. These bikes (most Honda 4s) don't like pods and were designed for an airbox.

RE: Double stack- hold the cheese - PowerDubs_imp - 09-20-2021

(09-20-2021, 06:26 AM)E11even_Hunnit_imp Wrote: In 4 dyno numbers as well...

I too, thought I was easily at the 100WHP mark with Guhls/Exhaust/TSR air funnel, until I found out that PD(with cams) is barely breaking 100HP himself with his setup Huh


TSR on the airbox? Or TSR velocity stacks on the TBs?

Depending on the answer- you are probably on either side of 95whp

RE: Double stack- hold the cheese - E11even_Hunnit - 09-21-2021

(09-20-2021, 11:43 AM)PowerDubs_imp Wrote:
(09-20-2021, 06:26 AM)E11even_Hunnit_imp Wrote: In 4 dyno numbers as well...

I too, thought I was easily at the 100WHP mark with Guhls/Exhaust/TSR air funnel, until I found out that PD(with cams) is barely breaking 100HP himself with his setup Huh


TSR on the airbox? Or TSR velocity stacks on the TBs?

Depending on the answer- you are probably on either side of 95whp


TSR on the airbox? Or TSR velocity stacks on the TBs?

Depending on the answer- you are probably on either side of 95whp
Stock rear "snorkel" delete w/ TSR funnel inlet housing a HF k&n. I really wanted to believe I was at the 100HP mark but you burst that bubble with your well documented(& dyno'd) setup. And I respect that Thumbs Up

RE: Double stack- hold the cheese - PowerDubs_imp - 09-21-2021

Do this to your stock stacks- and you will be very close to 100- http://cb1100forum.com/forum/showthread.php?tid=10300&pid=164988

Or wait until I test these new ones I am doing here- and you might get even better results- with plug and play- no grinding needed.

I'm hoping (and expecting) a pretty decent gain over where I already am just by bolting these in...as in -wow, no brainer! gain...

RE: Double stack- hold the cheese - E11even_Hunnit - 09-22-2021

(09-21-2021, 12:00 PM)PowerDubs_imp Wrote: Do this to your stock stacks- and you will be very close to 100- http://cb1100forum.com/forum/showthread.php?tid=10300&pid=164988

Or wait until I test these new ones I am doing here- and you might get even better results- with plug and play- no grinding needed.

I'm hoping (and expecting) a pretty decent gain over where I already am just by bolting these in...as in -wow, no brainer! gain...

Yeah, I'm in no hurry to make more power atm. I will happily wait to see your results and root from the sidelines Beer

Double stack- hold the cheese - PowerDubs_imp - 10-04-2021

[Image: 788316e5e1b0da53f05acd6e1ee049f1.jpg]



[Image: b8d2bb1ead4f9d1ec951702ad743e22a.jpg]


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I am very excited for these.

They will derestrict our TB from the 26mm they are choked at- to allow the full 32mm - and then the new double stack improves airflow beyond the factory single design.

Even on Honda bikes that use the same 32mm TB as our bike- with 32mm stacks from the factory. Smile

The CBR 650 uses the same 32mm TB as our bike- with full 32mm stacks from the factory- on an engine almost half the size.

Going to a double stack design on a stock CBR 650, just swapped in without touching fueling- gained 3whp and no losses.

I’m thinking we may approach closer to 110whp once I get these in.

[Image: 8197b7b891f5426f64277e91063fa05c.jpg]
[Image: 33980a8e0d925f7d7a53dc8598dff46b.jpg]
[Image: eba19d3a16f65bfbb925318322abcce9.jpg]


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RE: Double stack- hold the cheese - tod.branko_imp - 10-04-2021

(10-04-2021, 12:01 AM)PowerDubs_imp Wrote: [Image: 788316e5e1b0da53f05acd6e1ee049f1.jpg]



[Image: b8d2bb1ead4f9d1ec951702ad743e22a.jpg]


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I am very excited for these.

They will derestrict our TB from the 26mm they are choked at- to allow the full 32mm - and then the new double stack improves airflow beyond the factory single design.

Even on Honda bikes that use the same 32mm TB as our bike- with 32mm stacks from the factory. Smile

The CBR 650 uses the same 32mm TB as our bike- with full 32mm stacks from the factory- on an engine almost half the size.

Going to a double stack design on a stock CBR 650, just swapped in without touching fueling- gained 3whp and no losses.

I’m thinking we may approach closer to 110whp once I get these in.

[Image: 8197b7b891f5426f64277e91063fa05c.jpg]
[Image: 33980a8e0d925f7d7a53dc8598dff46b.jpg]
[Image: eba19d3a16f65bfbb925318322abcce9.jpg]


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It's done? Put it on a Dyno and stick a price tag sir

'14 CB1100 STD 5 speed