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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC On Road Nitro Cars >> need help tuning hpi r40
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need help tuning hpi r40 - 12/24/2003 9:31:31 PM   
SqueedilySpooch



Posts: 806
Joined: 12/24/2003
From: Bridgewater, NJ, USA
Status: offline 		I'm new to this forum so hi! Now then I want to know how to tune an r40 for regular road surface or for the parking lot. I know its meant for the track but i want to practice on a big empty lot when not at the track. Also i don't want to waste money for yet another car. It will be great so me and a couple of friends can just race for fun. I don't want too expensive list of part considering i have a budget and if you can help it will be great. Sooo...what kind of cars you guys got. I love racing and i'm a great driver. Well, that what my friends say!
       Post #: 1

RE: need help tuning hpi r40 - 12/24/2003 10:22:27 PM   
neap38



Posts: 441
Joined: 12/8/2003
From: kablaakablaa, UNITED KINGDOM
Status: offline 		hey... sorry dont know the awnser to your question but what engine have u got in your r40?


thanks

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RE: need help tuning hpi r40 - 12/24/2003 10:59:26 PM   
proptop



Posts: 4622
Joined: 10/18/2002
From: Rome, NY, USA
Status: offline 		What kind of tires do you plan on using? I tried foams on an un-prepared surface but they didn't work well (too dusty). I like a good treaded and belted radial, in a medium compound. Most of my bashers are set up w/ 1 1/2 deg. neg. camber F. and 1 deg. rear, w 0 toe in or out F. and maybe 1 deg. R. and depending on how bumpy it is, you're probably gonna have to experiment w/ springs and shock oils. Ride ht. around 1/4 to 5/16" because I have to deal w/ concrete expansion joints. Don't know your level of experience, but there's camber link positions, and other things to play with too...

(in reply to neap38)
       Post #: 3

RE: need help tuning hpi r40 - 12/27/2003 11:00:54 PM   
SqueedilySpooch



Posts: 806
Joined: 12/24/2003
From: Bridgewater, NJ, USA
Status: offline 		Well i have only two types the foam ones and couple of a year old slicks they are a lot softer than the foam so should i use those and i am planning to get a new engine to relace my old one. any suggestions?

(in reply to proptop)
       Post #: 4

RE: need help tuning hpi r40 - 12/28/2003 1:43:03 AM   
SqueedilySpooch



Posts: 806
Joined: 12/24/2003
From: Bridgewater, NJ, USA
Status: offline 		oh yeah its price can't go over 150!

(in reply to SqueedilySpooch)
       Post #: 5

RE: need help tuning hpi r40 - 12/28/2003 6:34:07 AM   
h82crash



Posts: 841
Joined: 3/1/2002
From: ramona, CA, USA
Status: offline 		Waiting for mine in the mail! Can anyone tell me what type of crank this car needs? Does it need an SG or P crank or can it use the threaded shaft?
I hear the OS .12 TR is a great engine and about $120. I'll get this one if I can't use the engine off my RS4.

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(in reply to SqueedilySpooch)
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RE: need help tuning hpi r40 - 12/28/2003 9:46:42 PM   
proptop



Posts: 4622
Joined: 10/18/2002
From: Rome, NY, USA
Status: offline 		I don't have one, but from reading other posts, I believe it comes with 2 different types of clutch nuts, so you can use either an SG or std. threaded shaft w/ the centax style clutch. If you want to race, then you need a ROAR legal 3 port .12...There are several choices, and you'll probably get different opinions, but the Serio's and NovaRossi's are popular choices.

(in reply to h82crash)
       Post #: 7

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