How much hp do you think the PC and Geico 250f's make?

Egra372 wrote:

50-52.

Bob454 wrote:

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall...

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall power, I would believe the 42-45 range

DL wrote:

Bingo

Bob454 wrote:

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall...

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall power, I would believe the 42-45 range

DL wrote:

Bingo

Spergen wrote:

Quick question for you DL while we are on the topic of 250F's. When Steve brought the bike over for Zack in the SX it was...

Quick question for you DL while we are on the topic of 250F's.

When Steve brought the bike over for Zack in the SX it was reported that he had to take off a lot of his go faster goodies to comply with the production rule and yet it was still competitive with the PC/Geico bikes

Therefore has Michael indicated just how fast the Cosworth Yam is ? I know the engine build costs for a top MX2 team is a lot more than a MX1, so was just wandering how fast the top bikes are.

MotoGUY wrote:

Not about the horsepower...A lot of people are probably on par with the HP that those bikes make the big difference is the torque they make...

Not about the horsepower...A lot of people are probably on par with the HP that those bikes make the big difference is the torque they make off the bottom.

MotoGUY wrote:

Not about the horsepower...A lot of people are probably on par with the HP that those bikes make the big difference is the torque they make...

Not about the horsepower...A lot of people are probably on par with the HP that those bikes make the big difference is the torque they make off the bottom.

Egra372 wrote:

50-52.

Bob454 wrote:

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall...

That seems a bit extreme. You really think they are making 18-20 more hp than stock 32-34hp motor??? That is like a 53% increase in overall power, I would believe the 42-45 range

DL wrote:

I don't know too much about it other than the bike was good and he enjoyed riding it. As for Zach's SX engine I don't know...

I don't know too much about it other than the bike was good and he enjoyed riding it. As for Zach's SX engine I don't know anything about it. Michael did say the bike is very fast and revs to the moon. He commented that he could rev it so far he thought it could blow but it's designed to rev. For sure it's on par with the KTM's IMHO.

2T42 wrote:

So we have spent the last 11 years [i]advancing [/i]the sport to arrive at factory equipped high dollar machines with motors that cost as much as...

So we have spent the last 11 years advancing the sport to arrive at factory equipped high dollar machines with motors that cost as much as my house. In the end making the same power and weigh about the same as.......








any stock 1989 2 stroke 250?

flomiester wrote:

you got it around 46 hp but the 2 stroke has around 5 #s more torque maybe with fuel injection the oems will start producing them...

you got it around 46 hp but the 2 stroke has around 5 #s more torque maybe with fuel injection the oems will start producing them again although i feel the 4 stroke is eazyer to ride.

WhKnuckle wrote:

I think the FC 250s make about 47; the PC 310s make around 60 or so.

AMA714 wrote:

One of the guys I ride with has a ton of money and likes to have "special" stuff. He spent an ass-load of cash for a...

One of the guys I ride with has a ton of money and likes to have "special" stuff.
He spent an ass-load of cash for a CRF250 built by Terry Varner. It has stuff on it/in it that I cant even begin to describe. I believe this bike makes 46hp. It is the fastest 250F I have ever ridden, and faster than some 450's. It feels like a 250F down low, but mid and up to the moon, its an animal.
With a handful of throttle, you can seat bounce jumps out of corners just like a 450.... You just have to be committed to twisting the wrist...... It likes to be WFO from mid range to top end

WhKnuckle wrote:

I think the FC 250s make about 47; the PC 310s make around 60 or so.

chrisbuehler wrote:

I see what you did there

chump6784 wrote:

MXA test on a dyno, I thought dyno's measured at the wheel. My guess would be 45-48 rwhp

flomiester wrote:

On my dyno my 250s make 46 hp using renegade sx4+ gieco uses a fuel from renegade that makes a bit more power .a stock crf...

On my dyno my 250s make 46 hp using renegade sx4+ gieco uses a fuel from renegade that makes a bit more power .a stock crf 250 on pump gas makes between 37.5& 38 hp on the mxa dyno the 250s i have done would be showing over 48 hp.We are really stretching the power on these 250s and i think its going to be very dificult to get past 46 hp from a 250 on the dyno im using.The honda engineers building the moto 3 engines for road racing have also expressed that its going to be dificult to see much over 45 hp and thats with full down draft heads and 14000 rpm limits and open exhaust.

slipdog wrote:

1st- Sorry to resurrect a 7 month old thread, but I thought adding to this would be better than starting a new one just to share...

1st- Sorry to resurrect a 7 month old thread, but I thought adding to this would be better than starting a new one just to share my information on 250f hp.

I also found multiple claims of stock 250f's making 36-38+hp with MXA having the CRF@ 38.44. My past experience tells me those dyno #'s are manipulated to give a high reading. The few stock bikes I've ran in the past were nowhere near that impressive.

This Sunday I ran a baseline on a new 2013 CRF 250 and I find it funny that our Dynojet is reading 7hp off of MXA's

HP= 31.58 TQ= 17.64

chump6784 wrote:

MXA test on a dyno, I thought dyno's measured at the wheel. My guess would be 45-48 rwhp

flomiester wrote:

On my dyno my 250s make 46 hp using renegade sx4+ gieco uses a fuel from renegade that makes a bit more power .a stock crf...

On my dyno my 250s make 46 hp using renegade sx4+ gieco uses a fuel from renegade that makes a bit more power .a stock crf 250 on pump gas makes between 37.5& 38 hp on the mxa dyno the 250s i have done would be showing over 48 hp.We are really stretching the power on these 250s and i think its going to be very dificult to get past 46 hp from a 250 on the dyno im using.The honda engineers building the moto 3 engines for road racing have also expressed that its going to be dificult to see much over 45 hp and thats with full down draft heads and 14000 rpm limits and open exhaust.

slipdog wrote:

1st- Sorry to resurrect a 7 month old thread, but I thought adding to this would be better than starting a new one just to share...

1st- Sorry to resurrect a 7 month old thread, but I thought adding to this would be better than starting a new one just to share my information on 250f hp.

I also found multiple claims of stock 250f's making 36-38+hp with MXA having the CRF@ 38.44. My past experience tells me those dyno #'s are manipulated to give a high reading. The few stock bikes I've ran in the past were nowhere near that impressive.

This Sunday I ran a baseline on a new 2013 CRF 250 and I find it funny that our Dynojet is reading 7hp off of MXA's

HP= 31.58 TQ= 17.64

Adam43 wrote:

And because you know about dyno testing, you know that comparisons between separate dynos are essentially useless, and that what matters is that all of your...

And because you know about dyno testing, you know that comparisons between separate dynos are essentially useless, and that what matters is that all of your comparisons are performed on the same machine under the same conditions, which MXA does.

stillwelding wrote:

47.2

2T42 wrote:

So we have spent the last 11 years [i]advancing [/i]the sport to arrive at factory equipped high dollar machines with motors that cost as much as...

So we have spent the last 11 years advancing the sport to arrive at factory equipped high dollar machines with motors that cost as much as my house. In the end making the same power and weigh about the same as.......








any stock 1989 2 stroke 250?

flomiester wrote:

you got it around 46 hp but the 2 stroke has around 5 #s more torque maybe with fuel injection the oems will start producing them...

you got it around 46 hp but the 2 stroke has around 5 #s more torque maybe with fuel injection the oems will start producing them again although i feel the 4 stroke is eazyer to ride.

jmar wrote:

First, I want to say that I didn't waste my time, reading anything past the original post. With that said, money is the biggest factor in...

First, I want to say that I didn't waste my time, reading anything past the original post. With that said, money is the biggest factor in being the top bike in this class.

IMPO, that;s not good for this sport.