Arrow Racing GTR .21 Engine Thread
#1216
Hey guys I got a question for ya,
I recently picked up a OS VZB Speed(old style). Has anyone here or heard of anyone rebuilding one of these with the new Arrow(5port) piston,sleeve, and rod? I am very curious to know the performance outcome in doing this.
Is it better to use the Arrow 5port sleeve or 3port sleeve?
Thanks
I recently picked up a OS VZB Speed(old style). Has anyone here or heard of anyone rebuilding one of these with the new Arrow(5port) piston,sleeve, and rod? I am very curious to know the performance outcome in doing this.
Is it better to use the Arrow 5port sleeve or 3port sleeve?
Thanks
#1218
The new GTR-II Plus 5 port is getting the about same or better. Most likely because it has a LCG head, redesigned head button and DLC crank. I am not sure which gets more but the new engine definitely has more power.
#1221
#1222

Also due to popular demand, Arrow Racing has brought the 3-port GTR-21 back for those who want a smoother engine with great fuel mileage. If you miss the power band and very high top end of the old short stroke OS V-Spec, check this engine out! Now only $174.99!
#1223
I.got The Email About the Pipe Today While I.was At The Track ... I immediately Ordered It Using My.phone Internet Lol...Just Curious To See How It Will Compare To.The Dynamite 086... I Tell Ya What Im Super Impressed With My 3 Port... This Is My 1st Arrow And Definitely NoT My Last... I Was As Fast As Any Other Engine Out There... It Ran 260 Degrees...What Is The Usual Running Temp On These? Ive Seen Guys Say Up To 290... It Sure Is An Animal Thats For Sure
#1225
I.got The Email About the Pipe Today While I.was At The Track ... I immediately Ordered It Using My.phone Internet Lol...Just Curious To See How It Will Compare To.The Dynamite 086... I Tell Ya What Im Super Impressed With My 3 Port... This Is My 1st Arrow And Definitely NoT My Last... I Was As Fast As Any Other Engine Out There... It Ran 260 Degrees...What Is The Usual Running Temp On These? Ive Seen Guys Say Up To 290... It Sure Is An Animal Thats For Sure

Your Arrow ran very good today. I think 260-265 degrees is the sweet spot. I know we can get 9 1/2min out of it on our track which is very good. I want to see how that Arrow pipe compares. Well cya next Saturday bro.
#1230
Got To Run My Pipe On My 3 Port For A Few Minutes Today... Coming From A Dynamite 086 It Had A Much Stronger Bottom With More Response... Top End Was Close To The 086 And I Still Need To Do A Touch More Tuning Since Switching... Im Pretty Happy So Far And Construction Is Amazing




