RE: .28 in a funfactor? oh dear....  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> CEN Racing Support >> RE: .28 in a funfactor? oh dear....
Page: <<   < prev  2 3 [4] 5 6 7 8 9 10 11   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: .28 in a funfactor? oh dear.... - 7/30/2005 12:04:27 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		thanks for the info on the clutch, maybe its worth a shot, its just the wear factor of the shoes with that type, like u said.

but if the ofna 1/8 fly wheel fits the standard motor with standard ratios, then i reckon i have a chance that it will also fit my ratios without hitting the brake seat, seeing as i have ground so much off the seat, and i will be using larger pinions. i think im gonna be ok. i will find out this afternoon with a bit of luck.

as for the cutout in the chassis - it is directly below the flywheel collet on the crank with these engine mounts fitted, so i cant see a prob there.

that weight distribution on the chassis - yea i know... just trying to get as much weight up front as possible. maybe i could swap the steering servo over to the other side and put the batt in the standard servo position. main issue is that the tank will need modding to stay in the normal place with the rear exhaust manifold taking up so much space.

the batt was living in the rear mounted box, which was a wheelie encouraging place to go... with the .28, erm, wheelies are gonna be a right royal pain in the ass i feel. maybe i should tie a ct4s to the front diff casing to keep the front wheels down?

the genesis clutch bell is huge compared to the funfactor one, seriously mate, its not an option... i dont think - will look again at that today.

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to rolland)
       Post #: 76

RE: .28 in a funfactor? oh dear.... - 7/30/2005 5:48:38 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		ok - i have a flywheel and clutch that fit fine. they are a cheapish protech setup with 3 teflon shoes. after a long chat in my lhs, we decided this was maybe the best way to go. we will see.

trouble is... we all forgot about a sg crank nut, i have a nut that fits, but i need the proper one to seat the clutch springs on... the shop is now shut - bummer.

regards to the flywheel clearance - as i had to raise the engine slightly due to the mounts being a tad low, i have gained some clearance on the brake seat as the crank centre line gets closer to the spur gear centre line, if u see what i mean... thats with a 14/18 bell, and 42/38 spurs - the genesis spurs are 43/39, so i will get a tiny bit more clearance with those. seeing as the 14/18 is more than likely as low as i will go, i think i am sorted! cept for that nut - arg!

ah well maybe it will run on monday... maybe...

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to poor judgement)
       Post #: 77

RE: .28 in a funfactor? oh dear.... - 7/31/2005 1:05:49 AM   
azzman



Posts: 1642
Joined: 2/22/2005
From: Auckland , NEW ZEALAND
Status: offline 		....oh the anticipation.......

_____________________________

Custom LCG DUAL TANK Savage, GS XUT Truggy, GS .18 Vision, Tamiya TT-01 Drifter, AX-10 Scorpion Crawler

(in reply to poor judgement)
       Post #: 78

RE: .28 in a funfactor? oh dear.... - 7/31/2005 11:13:58 AM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		umean - antici...











...pation. - one for the rocky horror fans out there.

its doin my head in man, just want it done and outta the way. if i got a sensible offer for it, id get rid, but its getting a sensible price for all the bits that i have here. still got the .18 to go in that centre diff chassis too. anyone fancy takin over? im bored of it.

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to azzman)
       Post #: 79

RE: .28 in a funfactor? oh dear.... - 7/31/2005 12:19:11 PM   
Scouser


 

Posts: 1002
Joined: 1/14/2005
From: Liverpool, UNITED KINGDOM
Status: offline 		Sorry mate, I have got my hands full with the CEN, race preparing the Savage and I am in the process of extending my garage to the tune of a GS SUT pro!!

_____________________________

CEN Fun Factor, GS SUT Pro, AE RC10 B4, Hotbodies D4
AE RC10T4, Kyosho Lazer ZX-5

(in reply to poor judgement)
       Post #: 80

RE: .28 in a funfactor? oh dear.... - 7/31/2005 4:59:20 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		got this far today...

the pipe will just fit, and i mean just, along the side. i had to move the rear tie bars to the rear of the suspension arms, and make some new holes, but they seem pretty secure on there, no nasty suspension angles or owt. on full compression, the tread of the tires just rubs the pipe with full left lock on. mounted like this also only just gives me enough space to use the U bend from my old spare cen manifold, the rest i will make up as i go along...

gonna have to chop a hell of a lot outta the side of the shell to get it on tho - the whole pipe and manifold are gonna be hanging out the side. might look good, might look stupid, will find out soon.



Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize
Click to see fullsize image.
Click for fullsize


_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to Scouser)
       Post #: 81

RE: .28 in a funfactor? oh dear.... - 7/31/2005 5:36:19 PM   
Scouser


 

Posts: 1002
Joined: 1/14/2005
From: Liverpool, UNITED KINGDOM
Status: offline 		That is going to be one long header. Is there no way of exiting the pipe out of the back a-la Tamiya nitro buggy?

_____________________________

CEN Fun Factor, GS SUT Pro, AE RC10 B4, Hotbodies D4
AE RC10T4, Kyosho Lazer ZX-5

(in reply to poor judgement)
       Post #: 82

RE: .28 in a funfactor? oh dear.... - 7/31/2005 6:31:39 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		i could do that yea, but its gonna look a bit funny(er) that way and wheelies/flips could well pull it off all the time. i hear u tho, its gonna knock performance a bit this way, which might not be a bad idea for the first few runs, im just trying to keep it as tidy as possible. the tuning might be a prob tho, not sure. i will ask antwar how he gets on with his, as thats a similar setup to what i have here.

have read about the fuel consumption of this engine too, was gonna go for one big tank down the right side, but the weight distribution would suffer more that way i reckon, so im going for this layout i think. just need a battery box and mod the mugen tank and the rear box mounting points.

edit: forgot the pic... doh





Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by poor judgement -- 7/31/2005 6:32:53 PM >

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to Scouser)
       Post #: 83

RE: .28 in a funfactor? oh dear.... - 8/1/2005 12:36:23 AM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		how about putting the silencer down the left side as normal, but the other way round?

i dont see why i cant use a length of silicone tube, like the silencer couplers, but longer, to make pretty much all of the manifold/header from. that way i will just need a short, straight flanged stub from the engine to the silicone pipe, and can also keep the manifold length sensible.

the silencer fits there and the shell would need minimal if any cutting for it to cover it.

any reason why i cant use a length of silicone pipe?

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to poor judgement)
       Post #: 84

RE: .28 in a funfactor? oh dear.... - 8/1/2005 1:43:49 AM   
azzman



Posts: 1642
Joined: 2/22/2005
From: Auckland , NEW ZEALAND
Status: offline 		Yea thats sound good. Heres what I would do tho, take your manifold, cut the flange of it, and the end you have just cut, put a silicone joiner on it and join it to your silencer (you have basically flipped it the other way round). Get another header, cut it so you just have a straight piece with the flange on it, join this to the old header with silicone coupler tube.
I reackon that should work ok.

_____________________________

Custom LCG DUAL TANK Savage, GS XUT Truggy, GS .18 Vision, Tamiya TT-01 Drifter, AX-10 Scorpion Crawler

(in reply to poor judgement)
       Post #: 85

RE: .28 in a funfactor? oh dear.... - 8/1/2005 4:44:56 PM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		I have also seen people use copper water pipe to make headers with. On the old wildhobbies forum I belive auto2 did this.



rolland

(in reply to azzman)
       Post #: 86

RE: .28 in a funfactor? oh dear.... - 8/1/2005 4:59:57 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		sounds like a good plan to me rolland.

i noticed last night that 22mm copper pipe is about the same id and od as the manifold. got lots of offcuts here too from sorting the gas supply out on the house. so i will pay a visit to the father in laws - hes a plumber with a 6 acre back yard - woohoo!

still curious about a length of silicone hose tho, i have a couple of metres of it somewhere - any thoughts on using this?

i will go have a look for auto2s gallery, does he still use these forums do u know?

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to rolland)
       Post #: 87

RE: .28 in a funfactor? oh dear.... - 8/1/2005 5:15:39 PM   
poor judgement



Posts: 2065
Joined: 4/16/2004
From: Cleethorpes, UNITED KINGDOM
Status: offline 		16mm copper pipe....not 22....bloody fingers have a mind of their own

_____________________________

http://homepage.ntlworld.com/robert.palmer97/CEN%20Test%20Pages/Mods%20to%20make%20a%20CEN%20semidecent.htm

(in reply to poor judgement)
       Post #: 88

RE: .28 in a funfactor? oh dear.... - 8/1/2005 9:01:43 PM   
rolland


 

Posts: 794
Joined: 8/15/2004
From: Tacoma, WA, USA
Status: offline 		The problem with using just the silicone is when it gets warm it is going to expand and get really flexible, which could cause it to kink and let the pipe come loose.
If you use copper you can solder the joints together and have a rigid non-flexible connection to the pipe that won't kink or come loose.
Keep in mind that the longer the head pipe the more backpressure it will make. This in turn will cause the motor to make less horsepower but more torque. If you make the head pipe to long it will effect both HP and torque. I am sure that there is a formula somewhere to calculate head pipe length but I have no idea where to look for it.

It looks like auto2 posted a week ago here http://www.rcuniverse.com/forum/m_3185534/anchors_3195081/mpage_1/key_/anchor/tm.htm#3195081
He was the first one to use the ct4 mounts in a big block conversion that I know of.


rolland

(in reply to poor judgement)
       Post #: 89