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Best header (manifold) for OS 18 CV-RX engine

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Best header (manifold) for OS 18 CV-RX engine

Old 04-14-2017, 05:48 AM
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Tm99
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Default Best header (manifold) for OS 18 CV-RX engine

HI guys,
New here and wondering if you can help me with choosing the correct manifold (header) to fit to my new OS 18 CV-RX engine (with rear exit exhaust port). I would like to run my exhaust along the side of the chassis so looking for a manifold with a 180 degree bend.
Out here in the UK I haven't been able to find much gear (and even less info - may be I'm looking in the wrong places?).
Anyway would greatly appreciate your advice on which is the best header/manifold for this engine and if I should be thinking about matching any particular exhaust to it?
I do not race so not worried about contravening any race rules, but simply looking for a good manifold/exhaust for this engine which will give a nice strong power band to play with.
Thanks and Happy Easter!
TM
Old 04-14-2017, 05:58 AM
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1QwkSport2.5r
 
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What truck is the engine in? Post a pic?
Old 04-14-2017, 11:44 AM
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Tm99
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As requested here are some photos. I haven't yet fitted the engine but I think the etup is clear. Need a good manifold and exhaust that will give me the strongest power band spread.
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Old 04-14-2017, 11:45 AM
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Tm99
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One more.
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Old 04-14-2017, 03:10 PM
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Rowdyray
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I know exactly which header you need, but can only find them listed for .15's. Even if the holes line up, you may have to do a little Dremel work. Do you have a decent hobby shop nearby? May have to see what they have available. Make something fit. I've had to do that several times.

You're going to like that engine. Break it in right and it will be some fun. Have the same one stuffed into an HPI MT Racer.

Old 04-15-2017, 12:56 AM
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Thanks RowdyRay....i had to do exactly that to my older HPI 18 engine which I am replacing. But I don't want to take the manifold off that one as I can use the whole setup in a nother car (that way each of my children will have one). It was a bit of trouble to make it fit so i'd rather buy a new manifold (the right one) to fit on this OS engine (which everyone is telling me is an absolute rocket!
Isn't there a matched manifold by OS? OS suggest a manifold in their engine manual but I can't find it anywhere.
I don't mind doing a bit of DIY to fit it - so any 15 size manifold will fit? Can you suggest one in particular? Thanks for getting back.
Old 04-17-2017, 02:07 PM
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Well, I got lucky that the exhaust was to the outside on the HPI. I can't find anything on Google specific to this engine. The ideal shape you need is listed for .12 and .15's. Not sure if it will fit or work. I'm just going to throw a bunch of info at you. You can decide what to do.

This is the ideal "U" shape needed. Has a 30 degree drop, clears the pull start and levels off. This is for a Rustler Sport which had a .15 in it. In the Specs it says the mounting holes measure .98" or 25mm.

http://www3.towerhobbies.com/cgi-bin...FUi1wAod_kgPsQ

But, I did find this while searching. The HPI 3.0 is an .18. I know this will fit and work, but it doesn't have the drop. Your muffler may ride high. Hope that helps.

http://www.rcuniverse.com/forum/rc-c...gine-swap.html

http://www3.towerhobbies.com/cgi-bin...FYK4wAody7EPzw
Old 08-14-2022, 12:28 PM
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ivan.antic
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Default Os .18 cv-r

Hi guys,

I also have an OS 18 CV-R, but I'm not sure which clutch to buy

Can You please give me some advice about flywheel set, clutch bell...

Thank you!!



Old 08-15-2022, 12:34 PM
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1QwkSport2.5r
 
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Originally Posted by ivan.antic View Post
Hi guys,

I also have an OS 18 CV-R, but I'm not sure which clutch to buy

Can You please give me some advice about flywheel set, clutch bell...

Thank you!!
What car is it going into?
Old 08-15-2022, 12:47 PM
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ivan.antic
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Originally Posted by 1QwkSport2.5r View Post
What car is it going into?
It is going into Kyosho DBX
Old 08-16-2022, 04:14 PM
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Originally Posted by ivan.antic View Post
It is going into Kyosho DBX
You could start here: https://www.amainhobbies.com/kyosho-...1282#tab-parts

You need a 2 or 3 shoe clutch for a 1/10th scale truck with a single speed clutchbell. It looks like the DBX comes with a 3-shoe aluminum clutch.

I would suggest going forward to start a new thread. Your questions had nothing to do with this old thread. It will garner more responses if the thread subject is right.
Old 08-17-2022, 07:53 AM
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Than you for advice
Old 08-17-2022, 07:54 AM
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Thank you for advice

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