ej_man

ok im building an all motor ls vtec the bottom end has endyn 11.5.1 compression pistons, eagle rods, eagle crank and im using a jdm b16 head ITR cams ITR intake mani with holley throttle body vibrant 4.1 header CTR dual vavle springs and retainers 2.5 exhaust carbon fiber intake 450cc injectors. what do you think my whp will be im hoping for 210whp but im not sure if i'll get it and i want to know if its even possible. also could i spray or is that compression way to high to be reliable?
let me know what you think i will be posting pics of my build soon.

ps it will be tuned on my hondata s200

gibsanez

We are not a dyno. Get it tuned and find out.

johnzy00

No offense but why in the world are you worried about hp right now? Build it Build it right make it reliable (if there really is a true reliable lsvtec) and get it dynoed. There is no way to tell over the computer what kind of hp you will have.

ej_man

i know but with the set up i was wondering if someone had something similar i just wanted a ball park figure amd yes it will be dyno tuned for sure. its my daily driver so im hoping its relaible lol

gibsanez

There are too many variables. Just get it tuned and find out.

ej_man

well its gonna be going to the block is gonna go to the machine shop soon im excited i want to hit 13s na oh will 11.5.1 compression plus the higher compression 16 head will it be ok to run nos??

Jimster480

im not sure about that. They are 11.5 CR pistons for what motor? Because the factory CR rating on the pistons depends on what motor its supposed to go into, because different heads have different combustion chamber sizes. I'm not sure about running NOS, it has a tendency to burn up piston rings. Although you could get tuned to run NOS.

ej_man

ok 11.5.1 for an ls motor now compression should go up because of the b16 head right? and if i run nos it will be tuned lol if i tune with nos will it last longer?

Jimster480

it might last longer. Do you have ceramic coated pistons or nitrate coated rings for higher heat tolerance? And yes if its 11.5 for a LS then it will be at 12.XX on a VTEC head.

On the compression calculator, it should have about 12.09 CR with a B16 head, and 12.39 on a GSR head. 12.XX compression is high for the street. I'm not sure what kind of gas mileage you will get. Atleast your cams aren't too aggressive. I'm not sure about spraying, since I'm not a fan of it, but you will def need to get tuned to spray, with compression that high, or you will have detonation and maybe melt a piston.

ej_man

your the man thanks alot no they are not coated pistons im not worried bout gas mileage it cant be that bad lol i just dont wanna have to run race gas lol 93 is good for me i really want over 200whp i want 220 but i think ima get like 198 to 200 the more i look up the more i see like 200 might be more likely i may try t get CTR cams instead should i port and polish the head will it make a big difference cause its alot of money lol

Jimster480

porting and polishing the head will make a difference, but it wont be that big. Porting/polishing usually makes more of a difference on boosted setups, where any air resistance can cause a larger drop in power, due to the volume of air being pushed through the system. You can polish it yourself though, so atleast its partly done