gear calculator wasnt able to give me the answer..
#1
gear calculator wasnt able to give me the answer..
On an AP1, 2nd gear, taking it to 71mph, what will be the engine speed????? thanks in advance!!!
I am trying to calculate how much I overreved the other day
I am trying to calculate how much I overreved the other day
#2
Community Organizer
Your ID says you have an Ap2.
Regardless, the engine should have been spinning at about 10,200 RPM.
Someone check behind me on this....
63(mph)/9(,000 rpm) = 7(mph per 1k rpm)
63(mph) + 7(mph) = 70(mph)
9(,000 rpm) + 1(,000 rpm) = 10(,000 rpm)
add in the change and you get round about 10,200RPM...... kaboom.
Regardless, the engine should have been spinning at about 10,200 RPM.
Someone check behind me on this....
63(mph)/9(,000 rpm) = 7(mph per 1k rpm)
63(mph) + 7(mph) = 70(mph)
9(,000 rpm) + 1(,000 rpm) = 10(,000 rpm)
add in the change and you get round about 10,200RPM...... kaboom.
#4
Registered User
Join Date: Jun 2006
Location: Reno, NV
Posts: 408
Likes: 0
Received 0 Likes
on
0 Posts
I'm in the same boat as you. Downshifted to 2nd at around 70 2 months ago. Rev-limiter kicks in at 62 as I found out later on. Luckily no massive failures yet, but get your valve retainers checked if you did indeed over-rev on an AP1.
#5
Registered User
Originally Posted by Mulder ATO,Nov 9 2006, 09:33 PM
add in the change and you get round about 10,200RPM...... kaboom.
Keep in mind that unless you actually logged the speed and/or RPM data, your guess about what speed the tires were actually spun up to is nothing more than a reasonable guess. It all depends on tire slip and clutch slip and speedo time averaging and....
#6
i must have been on crack...i was looking at the speedo at 71mph and then kaboom knowingly going down to 2nd, wasn't a misshift...brain was malfunctioning at which time...banged!! saw blinking at redline and i upshifted at that instant.....sucks!!!!!!!!!
#7
Registered User
Join Date: Jun 2006
Location: Sterling, VA
Posts: 724
Likes: 0
Received 0 Likes
on
0 Posts
s2000amuse, what was wrong with the gear calculator? I gave it to you in a similar post you started here:
https://www.s2ki.com/forums/index.php?showt...dpost&p=9018578
Whether you calculate it the easy way or the hard way, your engine is still going to be hurtin'
https://www.s2ki.com/forums/index.php?showt...dpost&p=9018578
Whether you calculate it the easy way or the hard way, your engine is still going to be hurtin'
Trending Topics
#8
Registered User
According to the TurnZero gear calculator for an AP1, 71mph happens at 9640rpm in second gear if you factor in tire deformation. 9340rpm without that factor.
http://www.turnzero.com/technical_resource...gear_calculator
http://www.turnzero.com/technical_resource...gear_calculator
#9
hahaha...just wasn't sure how to use it that's all....So I am below 10000 rpm!! Xviper said AP1 is okay for a brief moment at 10500....so i guess i did overrev for sure but not that bad at all then!!!!!