HPI Monster Truck Forum Talk about HPI monster trucks here. The infamous Savage 21, SS, .25 or any other HPI MT. You can optionally discuss HPI in our general MT discussion forum if you prefer.

Altitude

Reply
Old 03-21-2012, 02:47 PM
  #1
mervman16
Thread Starter
 
Join Date: Nov 2010
Location: Cranbrook, BC, CANADA
Posts: 99
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Altitude

I live at 3540 feet above sea level and am running 20% nitro in my "X".
Should i be able to pop wheelies?
I have some 25% but i have not opened it.
mervman16 is offline  
Reply With Quote
Old 03-21-2012, 03:06 PM
  #2
t9dragon
 
Join Date: Apr 2004
Location: PDX, OR
Posts: 7,866
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

tighten the slipper down and you should get some wheelies...
t9dragon is offline  
Reply With Quote
Old 04-01-2012, 10:30 AM
  #3
mervman16
Thread Starter
 
Join Date: Nov 2010
Location: Cranbrook, BC, CANADA
Posts: 99
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

I still cant get the tires to lift off...
mervman16 is offline  
Reply With Quote
Old 04-01-2012, 03:43 PM
  #4
ThunderbirdJunkie
 
ThunderbirdJunkie's Avatar
 
Join Date: Jul 2004
Location: Norwood, OH
Posts: 22,101
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

So tune it.
ThunderbirdJunkie is offline  
Reply With Quote
Old 04-01-2012, 05:34 PM
  #5
mdh1979
 
mdh1979's Avatar
 
Join Date: Jan 2007
Location: Brush, CO
Posts: 131
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

I live at 5300 ft and my X SS with a K4.6 and stock slipper setting will wheelie all day long. Maybe tune it better like TBJ said.

Matt
mdh1979 is offline  
Reply With Quote
Old 04-01-2012, 08:29 PM
  #6
SLAYERDUDE
 
SLAYERDUDE's Avatar
 
Join Date: Apr 2009
Location: CHICAGOLAND, IL
Posts: 1,856
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

I can has altitude.

SLAYERDUDE is offline  
Reply With Quote
Old 04-04-2012, 06:47 PM
  #7
mervman16
Thread Starter
 
Join Date: Nov 2010
Location: Cranbrook, BC, CANADA
Posts: 99
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

I have tuned it as lean as it will go without ruining it.
Still no wheelies
and i am using 25%
mervman16 is offline  
Reply With Quote
Old 04-06-2012, 08:19 AM
  #8
quietnas1
 
Join Date: Dec 2007
Location: MIAMI, FL
Posts: 2,308
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

Did you tune both the high and low speed needles? Is it a brand new truck, or did you buy it used? Have you had it for sometime? What type of engine do you have? I know out send like alot of questions but out will help in getting a better understanding of what is going on.
quietnas1 is offline  
Reply With Quote
Old 04-06-2012, 03:42 PM
  #9
mervman16
Thread Starter
 
Join Date: Nov 2010
Location: Cranbrook, BC, CANADA
Posts: 99
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude


Quote:
ORIGINAL: quietnas1

Did you tune both the high and low speed needles? Is it a brand new truck, or did you buy it used? Have you had it for sometime? What type of engine do you have? I know out send like alot of questions but out will help in getting a better understanding of what is going on.
Yes i tuned both needles. i bought it new about a year ago. rebuilt the engine. about 1 and a half gallons of fuel through it. it has the F4.6.
mervman16 is offline  
Reply With Quote
Old 04-07-2012, 05:22 AM
  #10
quietnas1
 
Join Date: Dec 2007
Location: MIAMI, FL
Posts: 2,308
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

I would say try and lean the LSN (low speed needle ) first. Also I remember when I had huge tires on mines the weight of the tires kinda killed the wheelies.
quietnas1 is offline  
Reply With Quote
Old 04-07-2012, 05:33 AM
  #11
ThunderbirdJunkie
 
ThunderbirdJunkie's Avatar
 
Join Date: Jul 2004
Location: Norwood, OH
Posts: 22,101
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude


Quote:
ORIGINAL: mervman16


Quote:
ORIGINAL: quietnas1

Did you tune both the high and low speed needles? Is it a brand new truck, or did you buy it used? Have you had it for sometime? What type of engine do you have? I know out send like alot of questions but out will help in getting a better understanding of what is going on.
Yes i tuned both needles. i bought it new about a year ago. rebuilt the engine. about 1 and a half gallons of fuel through it. it has the F4.6.
You don't want to go as "lean as you can without ruining it". Tune for performance, not "how lean it is". Watch some tutorials on YouTube.
ThunderbirdJunkie is offline  
Reply With Quote
Old 04-07-2012, 08:19 PM
  #12
mervman16
Thread Starter
 
Join Date: Nov 2010
Location: Cranbrook, BC, CANADA
Posts: 99
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude

i tried tuning it as best i could.
the motor seems to not rev up fast enough.
mervman16 is offline  
Reply With Quote
Old 04-08-2012, 11:27 AM
  #13
ThunderbirdJunkie
 
ThunderbirdJunkie's Avatar
 
Join Date: Jul 2004
Location: Norwood, OH
Posts: 22,101
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Altitude


Quote:
ORIGINAL: mervman16

i tried tuning it as best i could.
the motor seems to not rev up fast enough.
Then it's tuned wrong. Watch some YouTube videos, seriously. Don't fault the truck for your shortcomings.
ThunderbirdJunkie is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 06:20 PM.