Finally got the shee dynoed

[BUILDER]

Well i finally got the banshee up to to Redline and had Cameron Dyno it. After he fixed the little clutch slipping problem it had at about 7,000 rpm's this is the final numbers he got. Nothing super special but no to bad for a stock cylinder 4 mill on stock carbs with

T 5 pipes and cascade silancers. Tell me what you think. 70.29 hp

 

 

 

Edited January 15, 2009 by motor builder

[deckheight]

Looks like a good overall package. Good hard linear pull right to the top. Not too shabby of a max rpm for T-5's either... No really weird bumps or blips... What octane fuel is the top end set up for?

Thanks for posting that :cool:

[BUILDER]

Looks like a good overall package. Good hard linear pull right to the top. Not too shabby of a max rpm for T-5's either... No really weird bumps or blips... What octane fuel is the top end set up for?

Thanks for posting that :cool:

 

 

Well my friend ya know i had to show you that so you knew what you were up against when we get to ride together lol. I am running a stock head that has been cut to clear the 4 mill and the domes reshaped on it also. I run a 50 50 blend of premium and 110 it will not run for shit on any less than that.

[peterlocal22]

looks great

[Snopczynski]

Everything looks real good except for the torque backup. Lets try to figure out how we may be able to eliminate it. Can you list out every single mod to the bike that you have done? Do you know anything about the porting like durations, etc......... Torque line being flat is good, but the dip between 8k-9k rpm would be cooler if it was at least flat as well.

 

Everyone noted the max rpm on the T5's right? So we can stop recommending them as a trail pipe now.

 

I wasn't expecting to see that dip in hp between 8k-9k rpm with the T5's on it either.

[BUILDER]

Everything looks real good except for the torque backup. Lets try to figure out how we may be able to eliminate it. Can you list out every single mod to the bike that you have done? Do you know anything about the porting like durations, etc......... Torque line being flat is good, but the dip between 8k-9k rpm would be cooler if it was at least flat as well.

 

Everyone noted the max rpm on the T5's right? So we can stop recommending them as a trail pipe now.

 

I wasn't expecting to see that dip in hp between 8k-9k rpm with the T5's on it either.

 

 

I bought the bike new so i have done all the mods to it but i dont know about the duration on the port job. I can tell you the port job is what Cameron at redilne calls his dune port job and it was ported for the 4 mill. The crank is a 4 mill loong rod hot rods crank. The timing is set at 5 Degrees stock carbs with 340 mains jets dual K&N filters. It is running 13-41 sprokects like i said before T 5 pipes with cascade silancers the head is cut for the 4 mill and i believe the domes were reshaped to 19cc in the stock head. Thats all i can think of snop i can call and ask him what the duration is on the port job if you want that info? I was suprised by the dip in horse power also because i have never rode a bike that is smoother than this one it is just awsome from top to bottom. he showed me several other dyno runs from different bike with T 5 pipes that had the same dip in power.

[Snopczynski]

It sounds like it may be the pipes then. Camerons port jobs are pretty nice, so I dont think it would be an inherent issue with that. Do you know what your compression is?

 

That dip would more than likely make the bike rev pretty smooth to about 8k rpm, then the acceleration would all of the sudden pickup and be a little faster for about the last 800 rpms.

[FireHead]

Well i finally got the banshee up to to Redline and had Cameron Dyno it. After he fixed the little clutch slipping problem it had at about 7,000 rpm's this is the final numbers he got. Nothing super special but no to bad for a stock cylinder 4 mill on stock carbs with

T 5 pipes and cascade silancers. Tell me what you think. 70.29 hp

 

 

 

That's pretty reasonable for a pump gas stock cylinder............. Now you need an aftermarket cylinder block. :thumbsup:

[278]

You know the more I see stuff like this the more and more I wish I went with a 4mil. and bigger carbs in my build

[Snopczynski]

You know, you cant really compare this dyno to other different dyno results. I know Cameron really builds some wicked stuff. I wouldn't be suprised if this motor puts down at least 75hp on the crank dyno I use. We dyno tested a JSD 4 mill with stock cylinders, pt mids, and a single 35mm pwk carb. It came out at 78 hp. So if anyone is not impressed, keep in mind, you have to compare a different motor that was ran on the same dyno. With also near the same ambient running conditions to accurately compare results.

[BUILDER]

You know, you cant really compare this dyno to other different dyno results. I know Cameron really builds some wicked stuff. I wouldn't be suprised if this motor puts down at least 75hp on the crank dyno I use. We dyno tested a JSD 4 mill with stock cylinders, pt mids, and a single 35mm pwk carb. It came out at 78 hp. So if anyone is not impressed, keep in mind, you have to compare a different motor that was ran on the same dyno. With also near the same ambient running conditions to accurately compare results.

 

That is very true snop. You actually could pull 75 out of this motor even on his dyno if i wanted to but i was not looking for just big numbers i had a little stumble in the top of the bike we were trying to find that was random and thats why we put it on the dyno. It turned out to be a bad spark plug cab it is just nice to put them on the dyno were you can control the runs when you have a little problem like that. Cameron and i talked about it when he was dynoing in and he said if we rejetted and did a couple of other little things we could pull 75 but i am very happy with the way it runs right now and was not really looking for big numbers just a good running bike ya know.

[deckheight]

Well... You been buying into the old "my bikes broke" song and dance pretty good so far :biggrin: I think i will stick with that one for a while longer before switching to something else??? Anyway, I just hate sitting there while someone else is signing autographs...

[BUILDER]

That's pretty reasonable for a pump gas stock cylinder............. Now you need an aftermarket cylinder block. :thumbsup:

 

LOL ya true but i like the fact when somone pulls up beside me they think i am stock and then i suprise them when i kick there ass. Someday i will build a second bike then that one will be a 10 mill. I have got to get my kid out of the house before i can afford that lol.

[FireHead]

LOL ya true but i like the fact when somone pulls up beside me they think i am stock and then i suprise them when i kick there ass. Someday i will build a second bike then that one will be a 10 mill. I have got to get my kid out of the house before i can afford that lol.

You can make a 10mil look very much like an OEM engine too......... :geek:

[Snopczynski]

You wouldn't even have to change anything to get it to put down 75 hp on the crank dyno. Most of the dynojets I have seen, have very different correction factors from crank dynos. The rear wheel dyno is trying to project crank hp through a formulated program. Best way to actually check it is to measure it at the crank (more accurate).

 

Did you guys adjust timing or mess with any of that stuff while you had it on.

 

I know how that spark plug thing goes, I was getting a weird miss, and ended up by chance pulling mine off and testing it with the meter. Found out it was bad, and it was all good again after that.