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Author Topic: Lets talk TURBOS  (Read 9874 times)

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artie on edge

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Lets talk TURBOS
« Reply #15 on: June 16, 2009, 09:51:56 PM »
This is a bit long but the message here is that the difference between large boost and mid boost was only a few mph..... but loss of traction...

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trojan

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« Reply #16 on: June 16, 2009, 10:37:48 PM »
Quote from: Yoshi on June 16, 2009, 08:17:30 PM
hell if I know, most hp i've ever heard of on a busa was 901 hp, not sure if it had an intercooler or not, but it was a street bike........

I'm just saying I feel you have been misinformed.

As to the astounding claims of the engines mentioned, plese consider what is physically possible:

http://www.epi-eng.com/piston_engine_technology/bmep_performance_yardstick.htm

It's this understanding, as academic as it is, that has the more crusty among us (who me? get off my lawn!) muttering "on the street? BS!" ;)


edit: (just for Jet)

According to my back of the envelope scratchings I get a BMEP of 182 for a stock bussa. Much above 200 is ... well read the article ;D
« Last Edit: June 16, 2009, 10:44:44 PM by trojan »
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Offline fabr

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« Reply #17 on: June 17, 2009, 06:57:14 AM »
Quote from: Whiplash on June 16, 2009, 06:23:21 PM
THe boost you need to achieve a given HP number is totally related to the intake tuning, if you have a very efficient intake (porting, intake turbo housing efficiency etc.) you will require less boost then an equally setup engine less the efficiency. (Make sense?) The fact is with good tuning and the right setup, I think Yoshi's numbers are totally reachable with the basic setup he listed due to the fact that he lowered the compression. Make sure the Quench distance (piston to head deck, not chamber,  clearance) is as tight as you can run safely on that particular engine (likely around .060" but check to be sure) and you will be good to go! The tight Quench clearance speeds up the mixing motion of the mixture in the chamber and reduces the chance of detonation.....Just like an Indy car!
How many busus have had experience with?
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Offline fabr

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« Reply #18 on: June 17, 2009, 07:27:29 AM »
Quote from: trojan on June 16, 2009, 10:37:48 PM
I'm just saying I feel you have been misinformed.

As to the astounding claims of the engines mentioned, plese consider what is physically possible:

http://www.epi-eng.com/piston_engine_technology/bmep_performance_yardstick.htm

It's this understanding, as academic as it is, that has the more crusty among us (who me? get off my lawn!) muttering "on the street? BS!" ;)


edit: (just for Jet)

According to my back of the envelope scratchings I get a BMEP of 182 for a stock bussa. Much above 200 is ... well read the article ;D
I hate to back up yoshi ::) ;D ;D but he is not BS'in about 600 HP street bikes.I've seen the dyno sheets. For any interested parties I'd suggest they visit   www.suzukihayabusa.org   . It's ,IMO ,the very best place for busa specific info.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I participate in your fantasy"

Offline Enemy

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« Reply #19 on: June 17, 2009, 07:18:41 PM »
Charlie Anstaett's busa. RCC Ultra kit (Water to air intercooling) to hit 636 horse. Great video. RIP Dave-O! :'(

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Offline Enemy

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« Reply #20 on: June 17, 2009, 08:56:16 PM »
Sorry Yoshi! We are bustin' up your log again!
New thread time Fabr?  :police: All kinds of good stuff!
« Last Edit: June 17, 2009, 08:59:25 PM by Enemy »
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Offline Yoshi

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« Reply #21 on: June 17, 2009, 08:59:20 PM »
Quote from: Enemy on June 17, 2009, 08:56:16 PM
Sorry Yoshi! We are bustin' up your log again!
New thread time Fabr?  :police:
yeah, go ahead and split this one, again, lol........
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Offline Enemy

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« Reply #22 on: June 17, 2009, 08:59:59 PM »
Quote from: Yoshi on June 17, 2009, 08:59:20 PM
yeah, go ahead and split this one, again, lol........
:m
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SPEC

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« Reply #23 on: June 17, 2009, 09:00:36 PM »
Quote from: Enemy on June 17, 2009, 08:56:16 PM
Sorry Yoshi! We are bustin' up your log again!
New thread time Fabr?  :police: All kinds of good stuff!

New thread? Lets talk TURBO'S?
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Offline Yoshi

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« Reply #24 on: June 17, 2009, 09:04:45 PM »
Quote from: Spec on June 17, 2009, 09:00:36 PM
New thread? Lets talk TURBO'S?
sounds like a desent title..
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trojan

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Lets talk TURBOS
« Reply #25 on: June 17, 2009, 09:18:40 PM »
How can you call something "street" that needs a FULL rebuild every 30 hours (or as little as 3 quarter mile runs) ::)
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Offline Boostinjdm

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« Reply #26 on: June 17, 2009, 10:32:43 PM »
Quote from: trojan on June 17, 2009, 09:18:40 PM
How can you call something "street" that needs a FULL rebuild every 30 hours (or as little as 3 quarter mile runs) ::)

+1
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Offline Boostinjdm

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« Reply #27 on: June 17, 2009, 10:37:48 PM »
I think there is three groups that things fall into.

"track only" or "offroad use only"
"street legal"
"daily driver"

Most bikes or cars that have a modified power plant actually fall into the "track only" category, but are still driven on the street because of one's own "don't ask, don't tell" policy.
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Jet

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Re: Lets talk TURBOS
« Reply #28 on: June 17, 2009, 11:15:30 PM »
« Last Edit: June 17, 2009, 11:20:01 PM by Jet »
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Offline fabr

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Re: Lets talk TURBOS
« Reply #29 on: June 18, 2009, 07:00:39 AM »
Jet,I agree completely.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
 " You have all the right in the world to believe any damn thing you'd like, but you don't have the right to demand that I participate in your fantasy"
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