the oople race truck
I have recently been looking at the x factory x60, and I really do like it. I own a b4.1, which is 99% identical to a t4 - the donor car for the x60. I also own a hpi e firestorm, which been the subject of many threads, including 'could this work?'(about that... it was a bit ridiculous so I canned it). My plan is to merge the two to create a modern 2wd race truck, quite possibly mid motored. And the best part is, you all have a say in how it's built! The whole oople community can come together to create this, and i will have daily updates on the build.
P.S - tomorrow at 10am I will unveil something I think is quite revolutionary on this thread-stay tuned for the announcement! |
The b4 and t4 are different as the arms, shocks, chassis and turnbuckles are longer and the firestorm isn't comparable with the b4 as the firestorm is all in metric and all the b4 is imperial, but I mid motored stadium truck would be good
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Its not half hpi half ae, it is an e firestorm with some parts from the ae that will fit. I will also use things that people would like to see on it.
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Oh I understand
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Now for the promised announcement... the subject is rear toe. When you want to alter rear toe on a 2wd, you need to get some different blocks. I find this annoying. So my idea (its complicated so bear with me) is to have hinge pins that can pivot, maybe ball ends, and then the wishbone, then on the end half a block. On the chassis you have a kind of laydown shock tower with different mounting holes, with each one of the holes being a different amount of pre-set toe in. You then select your amount of toe, and screw the half block onto it. You then have a quick and simple way of adjusting toe... with no extra cost!
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Now that is a good idea but inted of using ball ends I would go for captured ones like I'm a 1/8 rallycross
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Yes, that would be better. I will develop the idea and who knows, it could end up on a certain truck... but back to the build. Right now I have everything on the table, and have got the final day of BTCC on tv. The only thing to ask now is what do you what do you want to see on this truck?
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A cow shell :thumbsup: blitz ESE shocks, proline cab forward shell, mid motor
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good thinking about the toe-adjustment!
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I'll take note of those, especially the cab forward shell. How about this?
http://www.modelsport.co.uk/pro-line...roducts/370000 Also, lets have some others posting and sharing their ideas! |
Quick update:
Diff mod - small shims removed along with spring.
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You could simplify the rear toe system by using the pivot ball system which you suggested. But rather than having the various link positions have the link fixed at both ends and use it like a turnbuckle too adjust how long the link is.
Basically same as you would on a pivot ball steering system but the inner part of the link attached to the chassis rather than a steering linkage. Some cars do already run this sort of system for adjusting rear toe |
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To all e firestorm/blitz owners, I really recommend you make the diff mod I did. Before, it sounded like a small stone was stuck in the works. I did multiple rebuilds, but it still made a grinding noise, and was not working properly (it felt almost like a spool). So I took out the spring and the shims, filled it with shock oil NOT diff oil, and now have a beautifully smooth and noise free diff. This is a design fault, and is certainly not the usual hpi quality. I would like to know if any of you have had this fault.
Just thought i'd share it with you;) |
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Have a look at the bay for pics of the robinson racing adjustable toe-in ; commercialised in the late eighties (I think) for the ultima and rc10
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The noise from the diff was because the spring was pushing the smaller sun gears away from the bigger planetary gears, making a bad mesh
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No, the idea is that you shim it correctly so that with the spring it gives a tight diff mesh
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The build: Day two
Today, I am going to do some gearbox mods (hopefully). I have decided weight will be a factor, so anything that is not vital to its structure can go. Also, the mid motor idea will have to go on hold for this week, as it's half term and I rely on my schools D/T equipment to design and machine parts. Quick question(s), what do you want the chassis made from(nothing expensive its a school:D), and what else do you want to see on the truck - remember, its up to you!
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