Why some nytro,s run harder then others

[leftdoo]

I wonder if anyone has rough idea what serial number these higher HP sleds might start at. It would be interesting to know what the serial number is on a known sled with the 140+HP

 

[sledheadgeorge]

OK Guys if any one of you would like to sell you lower HP Nitro cheap, I am willing to help you out.

 

[RocketmanROD]

My sled was built in 07/07 and is 40th RTX and RPMS seam low, Revs to 88 89 till deep snow the no backshift and falls off.

ROD

 

[shadow637]

You guys had me worried about this fast/slow thing, not sure if it is true or not but I just got back from a 50 mile ride and on hardpack mine will run right up to 9100-9200rpm.

Clutching and gearing are stock, 300 miles on the sled, the build date is 07/07 and the serial # ends in 0637...

 

[orange]

wow, thought one made in sept would be an early one. I will just say I have had an attak and 2 900 cats and many 7-800 cc sled and this thing has got some power. Pulls very hard to 80 or so,which is fine with me.

 

[NOS-PRO]

Different helix, and secondary spring, and nitrous. Almost 800 miles t date, and build date is 7/07 serial ending 1131.

 

[CROW]

Just checked my 40th, build date of 09/07 s/n ends in 4457. Can't really comment on performance yet. Only about 70 miles on it, still have the high elevation clutch setup.

I would think with the late build date and high s/n, this should be a "good one", no?

 

[08NitroRTX]

I can remember telling my brother ( who is a HUGE Poo fan ) after my second ride and I had over 100 miles on it. When he asked how does it run I replied with "It's the strongest 138 HP I have EVER ridden!"

 

[lucky_7]

Amen! I only have 200 miles on mine and I have yet to even break 80, but I don't care because the low-end is the only thing I need/want!

 

[skyboz]

Different helix, and secondary spring, and nitrous. Almost 800 miles t date, and build date is 7/07 serial ending 1131.

LOL!! Mine is 7/07 1136!! Lucky_7 is 1134!

 

[unpride]

vin ends 5683 is that the same as the serial # whatever it is im going to be trying to hit the rev limiter today

 

[NOS-PRO]

Different helix, and secondary spring, and nitrous. Almost 800 miles t date, and build date is 7/07 serial ending 1131.

LOL!! Mine is 7/07 1136!! Lucky_7 is 1134!

Those numbers are almost dead on! And look atr the locations they went to.....

 

[yamy07]

My build date is 6/07, and I've seen 9100 on the tach. Must be the early ones are the fast ones! LOL!

 

[dburu2]

7/7 ending in 0581 only 300 mls, but have't seen rev limt it runs good though. i'll get more seat time tomorrow at tug hill.

 

[RocketmanROD]

Just checked the # and ends in 1060 and built 07/07 looks like these are the good ones!!