Advice on extra quickness for BARMY the SE

Hjt · Postby **Hjt** » Mon Mar 26, 2012 7:54 pm

I'm really suprised it hasn't had issues with that kind of power.

What PSI do you run? and do you have a electronic boost controller?

davekmoore · Postby **davekmoore** » Mon Mar 26, 2012 9:41 pm

Hjt wrote:I'm really suprised it hasn't had issues with that kind of power.

What PSI do you run? and do you have a electronic boost controller?

14 psi. Full specs in the first post of the thread.

davekmoore · Postby **davekmoore** » Mon Mar 26, 2012 9:43 pm

NitroDann wrote:You dont have 40kw of mechanical losses. It wouldnt take a 65 strong team of draught-horses to turn you gearbox and diff around.

Dann

So the correct number is ...........?

Postby **NitroDann** » Mon Mar 26, 2012 9:44 pm

Its not important, all max HP before breakage figures known are at the wheels. 250rwhp-270rwhp. Thats broken rods and 5 speed.

Dann

Postby **Okibi** » Mon Mar 26, 2012 10:09 pm

SEs come with a 6 speed.

Postby **NitroDann** » Mon Mar 26, 2012 10:37 pm

Yeah I know, I was just listing what dies at 250, relevant info for lots of people.

Dann

greenMachine · Postby **greenMachine** » Mon Mar 26, 2012 10:38 pm

NitroDann wrote:Its not important, all max HP before breakage figures known are at the wheels. 250rwhp-270rwhp. Thats broken rods and 5 speed.

Dann

About time Dann! I was wondering how long it would be before this raised its head. BTW, six speeds break too :wink:

Postby **NitroDann** » Mon Mar 26, 2012 10:45 pm

Yeah, in the states they seem to survive 350 ok, here in oz APPARENTLY, every man and his dog owns a 6 speed smashing monster..

Dann

davekmoore · Postby **davekmoore** » Tue Mar 27, 2012 2:38 am

What is the mechanical loss between flywheel and rear wheels if the rwkw is 174?

Postby **NitroDann** » Tue Mar 27, 2012 7:58 am

I dont think anyone does genuine proper roll down tests so no one knows.

And it changes for every car and at each hp level.

Also, its not important, you can have 1000000hp at the flywheel, if you only have 100 at the wheels its just as slow as any other stock na6.

Dann

davekmoore · Postby **davekmoore** » Tue Mar 27, 2012 11:16 am

Yup, but I'm just trying to find out a way of knowing roughly how much power at the flywheel as some people on here and other forums (fora) use flywheel hp.

Postby **NitroDann** » Tue Mar 27, 2012 12:33 pm

They dont and cant use flywheel HP. They can make something up and pretend they know but dynos measure wheel horsepower, which is the only relevant power at all unless one needs to calculate fuel consumption or something. Like how a supercharged car making 250rwhp will destroy rods because the supercharger robs 25hp, therefor the engine internals need to survive at least 275rwhp worth of turbo power.

Apart from working out something like that, which is at best a vague guess anyway (how much power does X blower consume at all applicable rpm and boost levels on X engine?), theres no use for knowing. Maybe calculating whether a clutch- which has never ever been used on an engine its designed for, including the manufacturer- will survive X Nm of torque.

Too long didnt read: What does it matter how many flywheel horsepower the car has when its the wheels that move the vehicle.

Dann

Novice1 · Postby **Novice1** » Tue Mar 27, 2012 12:55 pm

davekmoore wrote:What is the mechanical loss between flywheel and rear wheels if the rwkw is 174?

Purists look away and don't even open the webpage - link removed Okibi 27/3/2012 - gives malware warning -

Roughly calculating for a 15 percent rwd loss, I have your car sitting on 276 hp or approximately 206kw.

Purists you were warned.

Cheers Novice1