As I mentioned ,test mule would be first thing to do. Once that passes muster incorporate proven aspect ito actual car ...BUT where ya going to mount the rocket motor? It needs to be as low as possible and centered.
This blow up up your car doesn't show any room, do you have a work-around?
Then the center of pressure issue must be addressed or the car will tumble forward or flip, when motor is engaged.
https://www.formula1-dictionary.net/aerodynamic_balance.html
I see the inherent speed design is 70mph+ is your souped up for the 120mph you mention? Does this extra speed get special tires/rims designed for that ,or the ones on it capable of handling the extra stress.
Are the tires one piece or on rims, they must be able to handle centrifugal forces or they will expand and fly off the rims.
Once motor is engaged it will propel car faster than electric motor [unless some free wheeling device is there?] this may also cause the car to flip forward due to electric motor lock up.
There are some 24mm G motors [78lb thrust vs 20-30] that have 2x-3x more thrust than a 29 -g are slimmer and may be easier to mount.
How much ground clearance between that center mounting and ground, that's where I would put a motor if possible. It would help great deal with keeping low and forward center of gravity.
The motor I chose would kick it in the butt...78lbs of thrust in a 9lb car is 8.67 thrust to weight ratio . If I was going to all the trouble to do this..I would take it too the limit. It also is low voltage ignition further reducing mods to light it. Do you have an extra channel to route the firing through? this one can be piggy backed to your on board battery. no need for another.
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Hey blackjack2564,
Sorry to be so late in responding. Thank's for the graphs, and the photos of the Typhon 6S BLX V4. Oyt of the box it is impressive. However That's not how mine looks like now.
Many people use the Typhon as a platform for speed runs. Check-out my thread on ARRMA FORUM, titled: TYPHON 6S BLX V4 MAXIMUM SPEED UPGRADE HELP.
At this point I have done the following:
1) Replaced the shocks and shock towers with those for a "Limitless", ( In my avatar photo on this forum, the blue car on the left is a Limitless). VERY low profile, and firm suspension.
2) "GRP TYRES"=GTXO1-S2. These tires/wheels are belted, so they don't balloon at high speeds.
3) 2, 6s 5,000mAh 60C 22.2V batteries that will be run in parallel.
4) Mamba XL-X Extreme ESC, (electronic speed control)
5)Sealed "Fast Eddy" bearings, throughout the car.
6)Replaced center differential with a "spool" gear.
7) 26 tooth pinion gear for the motor.
8) 1,000,000CST fluid for front and rear differentials.
9) 7,200uf capacitor pack.
10) "Drooped" all suspension arms, to further lower the profile.
11) Purchasing a Custom GT body from "Delta Plastik", for optimal aerodynamics.
12)TP4060 2450KV motor, (back ordered)
There are still more things to do. I'll post some photos when it is finished, (if there is such a thing as finished).
Why didn't I simply start with my "Limitless" as the platform for this project? I wanted to find out what was needed for this project with the Typhon first. The great folks on ARRMA FORUM have and are helping me. More than I ever expected.
If everything pans-out, the Limitless is next in line.