Originally Posted by
Nesal
Hi Guys!
I would like to get some more bottom end power out of my V-Spec, it has five and a half gallons on it and Im running a JP-4 pipe (this is probably the main problem, if so please recommend a different pipe, dont really want to spend the 100$ on the OS 2050/60), Dynamite max life aluminum shoes with 1.1 springs (dont think I can get more bottom end here...).
It gets very good power when on the lean side, properly tuned around 230F it gets decent top but very little bottom. I will be getting it repinched soon once I get a new Werks B5 so if that might be the problem I may leave it as is...
Thanks!
1.1mm springs can actually cause a little clutch slippage , could be part of the problem , a vspec after 5 gallons normally doesnt have a whole lot of compression and that can cause a weak low end also . check rod/crankpin fitment make sure it is in tolerance ,bearing condition and then send piston/sleeve set off to raya racing if it needs resizing/reconditioning , you will be very happy with rays work , very very good
and the jp-4 pipe is a great low end pipeset