ORIGINAL: supertib
ORIGINAL: spikeitaudi
Why don't you tell us what you really think about it Supertib.
I love the Hyper ST..only issue is fuel tank IMHO... the tank is designed wrong and causes tuning issues with the more sensitive motors... you will not be able to run a modded Picco using this tank, nor any seriously modded engines for that matter...... I am finding other people on other forums having major half tank leaning symptoms as well, and the physics also backs this up..pressure and surface area go hand in hand, change the surface are means you change pressure.... a good fuel tank needs to be square..... and IMHO the people who havent had issues are not running at the same level I am.... rookies and novice tuners likely know no better and wouldn't know a bad tune if it slapped them in the face........Hell may people argued the Savage tank didn't cause lean issues, but after a while the truth came out.... any tank that tapers down will lose fuel pressure the lower the fuel goes, which is very bad for keeping a consistent tune..the lower the fuel gets the leaner the motor runs.................Maybe on the low end sport motors this syndrome isn't apparent, but when you step up into he likes of a Ninja 28, modded OS 28, Modded Jammin 28, modded CL7B you will see major issues with the tank.and will be forced to change it for a Mugen..
....I have 2 people who have swapped the Hyper tank for the Mugen tank and they both are now thanking me for the info..both run big power mills and both could not get a consistent tune with the Hyper tank...the fuel level would hit the seam line on the tank and the motors would start running lean...High revving off the jumps and lean bogs coming out of the corners......... Anyways now with the Mugen tanks both are having great results and thanking me profusely for solving their issues..
I will tell you the differnce between the two tanks is night and day and it doesn't take a rocket scientist to notice...
+1 on the truck it is definitely a great truck. Now about a little bit more than a year ago I still got to see R9 race with the STS engines and thought WOW. My neighbor decided to purchase an STS .21 engine which lasted only about 2 and a half gallons. It was a pain in the rear to get that thing going. Once broken in it came alive and then raced it. He began having problems with the carb until it finally broke and I mean it broke at the engine mounts. Tried getting parts for it and no way. I ask people at the track if anyone is using anyone of those engines and the answer is no. They are considered crap unfortunately. People at Rev use good quality engines. You see them using GRP, Ninja, OS Vspecs, Picco's and GO engines. Now my neighbor and I own Hyper ST's as well as other Jammin products. Eventually we upgraded from the XTM stuff and I must say I've had nothing but great things to say about my ST. I have raced it using an XTM 457 engine and a Jammin .28 block. I've beat the crap out of it and it keeps coming back for more. I've invested money on this truck and added all kinds of goodies to it. Now I'm running a Picco .28 engine which is still in the process of break in. I have experienced issues with the gas tank however and so has my neighbor. The tank will sometimes split and or sometimes the lid wont seal properly. I have been recommended to make the Mugen tank mod on it because it is a better tank. I've heard of people using the Kyosho Strr tank as well as the Jammin CRT tank. We have discussed these issues with people from Ofna and it is true that the tank has had problems for some people. Once again the trucks are raced and not bashed. If I wanna bash then that's what the Savage X is for [>:].