Gettin drag kit this friday....going with upgrade tial wastegate, 2.5 downpipe into a hight flow cat..from cat back custome 3" piping into apex N1...will i get any boost spikes?? this is for a Type-R and can i still rev up to 8400?? at 4-7lb boost with any problems??

 

Have you made the proper adjustments to lower the compression on your car. To be safe you should also retard your timing 2 or 3 degrees. About boost spike, I have yet to see any with my EX and I have the exact exhaust mods that you do(high flow cat,2.5" downpipe, Tial 35mm, and Apexi N1 exhaust).

 

you shouldnt get any but keep an eye on the gauge .

 

I have a custom kit on my R w/ the Delta gate and it boost spikes from 5 to like 9psi at high rpms, but I have a headgasket to lower compression......still I have to watch the boost gauge and let off it when the boost starts to creep. It really handycaps (sp?) my car because Im yet to feel the full power of my turbo, but from what I have heard you should be safe with the tial gate, which is what Im going with soon. I have a bit more play with the boost spiking then you would at stock compression so if it spikes just get off it.

 

thanks people but can i still rev to 8400 safely?? or will it spike?? or will i run to lean for those high piston speeds of a 8400 rev??
pleaz respond....thanks R-1303