Hyper 21 8 port aspiration

[jdavid2002]

Okay guys, I have a question for you concerning my Hyper 21.

I bought the motor used for my Kyosho MP 7.5 and put it in after I grenaded my rod bearing in my GS motor. Well, i bought the lowered motor mounts for it but it was put on a sport chassis that dos not have the groove to accomidate the lowered mounts. Up until I found out that the clutch bell had been rubbing the chassis, I couldnt get it to tune right on the low end. I did some asking around about helping out the lowend and everyone said the ofna 063 pipe.

Now that I have figured out where my low end is going and have since fixed the problem, I was wondering if the 086 pipe is the best pipe for that engine? Or maybe even the 053.

My racin buddy said that he talked to a guy that said all his friends were running 086 pipes on thier 8 ports and they ran really good. I thought the 8 port was known for it's high RPM range power and therefore lacked some lowend? That's why I have been partly looking for a 063 pipe.

Can you guys give me some ideas on what the best pipe is for that application? Thanks alot guys.

:thumbup:

 

[jdavid2002]

Cmon guys, a little help...:radio:

 

[GilBeQuick]

The 063 is pretty much all I've heard several times for the 8-port. I just picked one up last night but I'm still breaking in the engine so I can't really tell you a difference from it.
I was stuck between the THS 1/8 offroad pipe, and the 063. After a few minutes of side by side comparisons and comparing the polishing and everything the THS definately looks to be the better quality pipe, but I went with the 063 cause it was cheaper. The THS looks t o be more of a low-end pipe, it's a little bit shorter.

 

[jdavid2002]

Gil...Thanks for the info and I have seen the THS pipe also and have read that it is comparable to the OFNA and RB.

I went ahead and purchased the OFNA 063 pipe and I am going to buy a Waller power adapter for it soon. I read on S-Grid that those things give a noticable difference in Lowend and even help out in the mid and high range.