Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 18, 2014 6:44:36 GMT
Interesting additional gussets and triangulation on your frame, because I was thinking of putting some in on my uk spec chassis once the test build was complete so I know what space is available etc and before I get it powder coated. If you could take some more pics of all the extra bracing and post them or pm me I'd be very grateful :-) Cheers, Mark Looking back to some earlier Australian builds, I remember the chassis has to withstand certain forces over that of the uk version. I'm going back a considerable timeframe here;) Apparently the rocket has better figures of the legendary atom. ( rumour or true..??)
|
|
|
Post by bingo on Apr 18, 2014 7:41:32 GMT
Interesting additional gussets and triangulation on your frame, because I was thinking of putting some in on my uk spec chassis once the test build was complete so I know what space is available etc and before I get it powder coated. If you could take some more pics of all the extra bracing and post them or pm me I'd be very grateful :-) Cheers, Mark Looking back to some earlier Australian builds, I remember the chassis has to withstand certain forces over that of the uk version. I'm going back a considerable timeframe here;) Apparently the rocket has better figures of the legendary atom. ( rumour or true..??) When I was speaking to my insurers they had mentioned that the rocket generally sustained less damage due to a stronger chassis Sent from my SM-N9005 using proboards
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Apr 18, 2014 8:30:51 GMT
The last trackday I did, there was an atom that was trailered in ready to use, a big trailer.. Double decker type. Whilst getting the car underneath off, the owner looked up to see one lower main chassis rail unfortunately split in two after cracking. So glad he actually saw it, before caning around the track with us. Gutted for him also, but he used his other car for the track day. Given the year of the car, that's back to manufacturer! Thread hijack over lol. Have you looked at the 750 Toyota engined rocket chassis? Lots of triangulation.
|
|
|
Post by kiwicanfly on Apr 18, 2014 8:39:06 GMT
I thought I might need to go the same way as the Oz requirements, could never find out what had been done to increase the torsional but now I see some of it at least.
Don't like the idea of the nose cone you have to have though.
|
|
|
Post by richo on Apr 18, 2014 22:36:07 GMT
Hi Chaps. Be very glad you are not in Sydney trying to build a rocket. I almost have my build finished and have just found out I have to use retractable seat belts. Not happy. Will have to put up some photos when I have the time to work out how to do it.
|
|
|
Post by bauer on Apr 18, 2014 23:20:51 GMT
Hi Chaps. Be very glad you are not in Sydney trying to build a rocket. I almost have my build finished and have just found out I have to use retractable seat belts. Not happy. Will have to put up some photos when I have the time to work out how to do it. Why is that? I have found the guidelines a bit sketchy. Has someone laid it out in black and white as to why you cant use a 4 point harness with a "seatbelt" type clasp that is ADR approved?
|
|
|
Post by richo on Apr 19, 2014 5:10:38 GMT
Us people in New South Wales are apparently too stupid to be able to adjust a seat belt when we get in a car. Retractable belts are self adjusting.
|
|
|
Post by Mark W on Jun 5, 2014 14:15:43 GMT
Hi all, Been a long time, sorry. MarkinIreland, sorry for the delay, I'll take some photos and upload them - yes the Australian vehicles have stiffer torsional requirements. Terry Southam imports them as is, and adds the stiffeners here in Perth. On the weekend Jack and I finished the floor. See below. Next step is the suspension. I have to say I'm struggling to interpret the RTR build manual. I've looked through a few build logs trying to find a more step-by-step process to put the suspension on without luck. Does anyone know of some more detailed pictures and/or explanation? Cheers, Mark
|
|
|
Post by richo on Jun 7, 2014 0:30:41 GMT
G'day Mark, do you have access to the technical section? There is a good assembly guide for the front steering hubs.
|
|
|
Post by Mark W on Jun 11, 2014 13:23:23 GMT
Hi MarkinIreland, Sorry it's taken a while but here are some additional photos of the Aussie Rocket with the additional structures for torsion. I hope this helps... Cheers, M
|
|
|
Post by Mark W on Jun 15, 2014 19:20:08 GMT
Can any one help with wheel/rim size constraints?
I'm looking for my Rocket to be as quick as possible on the track. What I think I've learnt is that I want alloy over steel rims (weight saving in outright and rotational mass is important), 15" over 17" (weight saving again), 195 over 205 width (reported to have 8% less drag - especially for fronts), and medium profile tyres (some tyre sidewall width important in handling). I think I read somewhere that the wheel covers only allow for 205 width tyres. I've read that some cars such as the Ariel and Lotus Esprit have wider tyres at the rear than the front which I can understand for a rear drive car.
So I was thinking of 15" alloy rims and Toyo Proxes R888 195/50R15 82V, and 205/50R15 86W for the rears.
What do folks thinks of this? Also, I'm struggling to find out what the offsets need to be for different rim diameters so as not to bind on the brakes/suspension. Does anyone know the constraints here?
Thanks in advance to any/all.
Cheers, Mark
|
|
|
Post by Mark W on Jun 23, 2014 12:37:12 GMT
Hi all,
Quick update on the kit. This weekend past Jack and I drilled and tapped all the suspension parts for grease nipples at Southam Auto Eng's facilities. Unfortunately the nipples wouldn't fit, so the team at SAE are going to procure different nipples and install them. A big thanks to Terry and Kim at SAE here in Perth.
We pick up the suspension on Wednesday and this weekend is the initial fitting!
Cheers, M
|
|
|
Post by Mark W on Jun 23, 2014 12:41:19 GMT
Okay, update on wheels. For those that have wondered about what wheel/tyre and why, check the series of links that starts here... www.tuneruniversity.com/blog/2011/04/part-i-why-wheel-weight-slows-most-people-down/Basically you want as light a wheel as possible, with all the alloy/steel as close to the middle as possible. This reduces the carry weight and rotational inertia (an issue for accelerating and braking performance) of the wheel/tyre combo; and improves handling as the suspension springs can push the tyre back on the road as quickly as possible after bumps. So tyre wise I'm looking at either 195/50R15, or 205/50R15. For wheels looking at 15" alloy rims in the lightest street legal version you can buy here in Australia. Terry at Southam confirms the above and suggests waiting till the brakes are fitted so as to confirm the exact offest amounts. Right...on with it then... M
|
|
|
Post by Mark W on Jun 23, 2014 12:42:23 GMT
G'day Mark, do you have access to the technical section? There is a good assembly guide for the front steering hubs. Hi Richo, Any chance you could cite the link. I'm having trouble finding it (the one you mention regards front steering hubs.) Cheers, M
|
|
|
Post by richo on Jun 23, 2014 13:11:31 GMT
|
|