Derek Harris – good/bad reviews

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

Jbulz wrote:

As someone that works in the automotive engine world doing engine system simulation, calibration, and testing - what you said was about as overly simplified as...

As someone that works in the automotive engine world doing engine system simulation, calibration, and testing - what you said was about as overly simplified as saying "working out makes you more athletic". That's easy if you take a couch potato (or engine, like DRZ400) and make him run 3x per week. But what if you're starting with a pretty high performance athlete (i.e. a high-strung MX bike) what would you tell him to do to increase performance?

There are a lot of "rules", like increasing compression ratio = more efficiency/power, more valve lift/port area = more airflow, etc that don't work in real life. There are a lot of counter-intuitive behaviors of engines that take more than a "guess and check" approach to testing, and actually take some analysis.

The Dunning Kruger effect comes to mind... Plant that flag and fly it high!

Markopolo400 wrote:

"As someone that works in the automotive engine world"

Oh please......You sit at a desk and cruise Vital all day long and you know it

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

BobPA wrote:

You cannot be serious? If it is so simple, why in the world are you typing BS on Vital? You should be the head engine designer...

You cannot be serious? If it is so simple, why in the world are you typing BS on Vital? You should be the head engine designer for an F1 team. Or go work for Mitch, his riders need some help clearing Larocco's Leap.

You strike me as being about as intelligent as a bag of hammers.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

dmm698 wrote:

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

piscokid wrote:

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience...

Not riding supermini's. To be competitive in that class takes cubic dollars and engines built by someone that has tons of porting and pipe building experience. I have never used Derek Harris before and yes, I can split cases and rebuild bottom ends.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

dmm698 wrote:

Interestingly enough the jetting spec I was provided for a Harris yz250 cylinder to start was around 10 points lower than stock..... I’m not saying the...

Interestingly enough the jetting spec I was provided for a Harris yz250 cylinder to start was around 10 points lower than stock.....

I’m not saying the cylinder and ignition spec wouldn’t of made good power that way, because I wouldn’t know due to my issues but none the less.

Im currently 10 points greater than stock with the builder I ended up using.

4csHATER wrote:

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure...

Man oh man you guys kill me, its pretty simple the more air and more fuel the more power you make, pretty simple stuff. im sure you could do it yourself if you studied up on it all. but instead just give your money to someone else, and dont learn, cause that will get you farther in life right, the money not the knowledge.

dmm698 wrote:

Bramlett321 wrote:

Buddy not everyone has the time nor the tools to even attempt motor work. Along with not having enough time....what happens when they do work on...

Buddy not everyone has the time nor the tools to even attempt motor work. Along with not having enough time....what happens when they do work on it and f-ck it up? Then they're out more time and money!!

As far as the bashing on this cat goes !!! The shit you all are posting is ridiculous and yeah it was funny at first but damn now you've got mobs posing with clubs and gay ass tiki torches. He made a mistake and sucks at communication, I'm sure his ass has gotten the message.

Braaaphole wrote:

I'll say this about Derek as I've had a few interactions with him. I posed on here a couple of years ago looking for some boot...

I'll say this about Derek as I've had a few interactions with him.

I posed on here a couple of years ago looking for some boot recommendations. Derek posted up offering some advice and said there was a promotion going on with one of the specific boots I was looking at. Come to find out that the promotion had just ended, however he went out of his way to offer to sell me these boots at the discounted price anyway knowing that he wasn't going to make any money on them. Not only that, he hand delivered them to me at Dallas SX and had fits doing so. He was just going to bring them into the stadium for me and they wouldn't let him in so he had to bring them back to his van. Then after the race in the mess of everyone leaving, he met up with me to hand them off. Why, for what? To do all of that for no profit is much further than most people would go.

Additionally, I've had several conversations with him about bike setup and I've never spent another penny with him yet. I was looking for a new 85 for my kid earlier this year and was really interested in the TM. Derek did everything he could to get us a test ride on one before I made a purchase. Due to racing and my work schedule, we couldn't connect in the time frame I needed and I bought a different bike. Still after that he has helped me out and answered questions on the new bike. I told him I was bringing the new bike to him when it's time for a top end to let him do some tuning and I still will, soon.

Derek has gone far above and beyond in my dealings with him and has been very professional. The guy knows engines too.