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RE: Nitro Guide and FAQs - 1/14/2008 8:35:35 PM   
hpi apollo



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From: Georgetown, KY, USA
Status: offline 		the mixture needles are the hsn and lsn, as long as you have sealed for air leaks and have adequate airflow, then 260 is fine, if you are running hard then thats not a problem


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RE: Nitro Guide and FAQs - 1/14/2008 8:50:15 PM   
Si-Saint


 

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Joined: 10/9/2007
From: el monte, CA, USA
Status: offline 		on the O.S. V-Spec there are 3 needles (not including idle needle) the needle im talking about is right under the HSN opposite to the LSN.
OH so 260 would be fine to run on this motor? yeah i was running it kind of hard but it ran perfect until i temped it and got scared. unless someone says otherwise i guess ill just let it run at the 240-250 range.
thanks.

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       Post #: 152

RE: Nitro Guide and FAQs - 1/14/2008 8:57:16 PM   
hpi apollo



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Joined: 5/13/2006
From: Georgetown, KY, USA
Status: offline 		you probably mean the mid speed needle, usually you dont have to touch those much, just make sure you have good airflow, that your engine is sealed from airleaks, using a good fuel, and tuned for a clean, crisp throttle response and dont worry about the temps, its a v-spec, a racing engine meant to deal with some heat, i would say 260 while racing isnt bad


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RE: Nitro Guide and FAQs - 1/14/2008 9:01:14 PM   
Si-Saint


 

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From: el monte, CA, USA
Status: offline 		yeah i was kinda thinking the same thing when the track owner came off at 250 on his Sirio and his car looked dialed. i asked him what his temp was and he didnt seem to bothered by it so i guess its OK to race at that temp. i guess we'll find out when the con rod comes out the case. lol.

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RE: Nitro Guide and FAQs - 1/15/2008 1:28:22 AM   
rhysdejager


 

Posts: 128
Joined: 10/22/2007
From: woy woynsw, AUSTRALIA
Status: offline 		howdo you tune a 3 need carb?
i know how to tune a 2 need carb but not with the 3rd needle

cheers

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RE: Nitro Guide and FAQs - 1/15/2008 1:52:00 AM   
hpi apollo



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From: Georgetown, KY, USA
Status: offline 		same as you do with a 2 needle carb


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RE: Nitro Guide and FAQs - 1/15/2008 3:33:34 PM   
Si-Saint


 

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From: el monte, CA, USA
Status: offline 		^^^its harder than it sounds!!!

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RE: Nitro Guide and FAQs - 1/20/2008 6:11:35 AM   
rhysdejager


 

Posts: 128
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From: woy woynsw, AUSTRALIA
Status: offline 		well with the HSN you just drive it at full throttle
and adjust it soo it has a smooth top end
and the LSN you let it sit for 30 and give it over 1/2 thottle
and adjust it if it stalls or whatever, listne how it sounds

but what do you do for the mid range needle?

cheers


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       Post #: 158

RE: Nitro Guide and FAQs - 1/20/2008 1:33:40 PM   
hpi apollo



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Status: offline 		you adjust it so you have a smooth transition from low to high


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RE: Nitro Guide and FAQs - 2/2/2008 3:03:48 AM   
Kyosho GXR28 BMW3



Posts: 87
Joined: 1/23/2008
From: VancouverBC, CANADA
Status: offline 		Yeah...I always tune the LSN first then set the top end for the HSN. For me, I found it hard to even do HSN is my engine is too lean from idle or too rich from idle. So I do LSN first, getting it to start and idle without dying would be everyones first step right? Yea, so if your LSN is not tuned right, it wont even reach top end if ur always flodded with fuel or out of fuel from an idle. After that is set, go and set the High end and adjust for speed. Thats my way, don't know what the heck you guys are doing, but thats how I deal with it. Just make sure that you set the HSN at factory before you start the engine, and tune the LSN first.


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Regards,

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RE: Nitro Guide and FAQs - 2/8/2008 2:12:21 AM   
RC Floyd


 

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From: Victoria, AUSTRALIA
Status: offline 		This is an Excellent thread for the breaking in and tuning process. Well done to those involved. Is there another thred that you have started with the revised first pages that were done?? (one that doesnt include the unproductive comments from smart ass know it alls) Cheers

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RE: Nitro Guide and FAQs - 2/8/2008 4:36:01 AM   
hpi apollo



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From: Georgetown, KY, USA
Status: offline 		no there isnt, sorry, this is the one that got stickied so its staying, the faq guide is on page 2


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RE: Nitro Guide and FAQs - 2/11/2008 6:57:53 AM   
cheeseclip



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From: Napier, NEW ZEALAND
Status: offline 		And how do we judge the temp if we dont have enough money for a temp gun? can we tell by a nice crisp sound and a combinition with the amount of smoke from the pipe?


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RE: Nitro Guide and FAQs - 2/11/2008 9:06:47 PM   
hpi apollo



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From: Georgetown, KY, USA
Status: offline 		tune it to where it has a clean crisp throttle response and a smooth power curve all the way to the top, then put a drop of water, if it pops and sizzles like that then its too hot


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RE: Nitro Guide and FAQs - 4/8/2008 9:51:42 AM   
tcv_racing



Posts: 137
Joined: 3/28/2008
From: zama, JAPAN
Status: offline 		Hi guys!

Ill be heading to my LHS tomorrow to pick up my new HPI Firestorm RTR. This will be my very first nitro RC.
I just want to ask you guys if what nitro fuel should I use for my firestorm?

My LHS carries these brands..

-HPI Monster fuel 25% nitro
-KLOTZ Lube glow fuel 20%, 25%, 33% nitro
-KYOSHO Racing Kanai 20%, 30% nitro

Thanks in advance!

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