hey,
i'm new to this forum. i have been checkin out on the integra type-R. i think it looks amazing and i have a few questions on power gains on the car. with headers, full piping exaust no cats, intake. how much hp increase will that give? if i like the power gain on this car i'm planning on to make this car an amazing road handling car around. and with those mods how would the 0-60 and 1/4 change. and what else can i do to increase hp without putting turbos? well thx..

 

it has one header, one cat, and if you were to put on a turbo, only one of those too.

basic i/h/e/c setup with an R would be maybe 5-10 whp. an itr is not as tuner friendly as other tegs. just throwing random parts on there could make you lose power. and a straight pipe no cat is a bad idea. :nono:

 

With Type-Rs, you really shouldnt be concentrating too much on HP figures. With the basic bolt ons, the B18C will breathe and rev better. Combine this with valvetrain upgrades and you'll feel the difference. But if you want bigger power gains, you'll need more aggressive camshafts and high compression pistons, then tune it via a programmable ECU, which is where I'm heading next

 

i'm thinkin about getting jdm 4-1 and an a'pex n1 exhaust for my type r. i already have an aem cold air. i've really been studying piping diameters and reading a lot of tests, specs, and reviews. i also love spoon so i've been following along their philosophy. spoon's b-pipe is 60.5mm where the a'pex n1 is 60mm. i'm not looking for something outrageous, but something a little better than stock and that doesn't put a hole in my pocket. i'm probably going with the jdm 4-1, and the n1 exhaust i like cuz of the piping dia., sound, and look.

what do you guys think? any feedback will do. thanks.

 

the jdm 4-1 has a 2.5 in collector. you'd have to have a new 2.5 in flange welded onto your stock cat for it to fit, or get a new high flow 2.5 in cat. then it would flow into a 60 or 60.5 mm exhaust which is a bottleneck for the system. how big is 60.5mm and 60mm? (damn metric system h: )

 

60.5mm is equal to 2.38 inches. 60mm is very little less than that. Half a millimeter, which is nothing. do you think this will be a good set-up with a stock cat? i haven't really looked at any cats in depth, so i have nothing to go on. i might, later on down the line, build up the internals of the engine. probably with cams, cam gears, valves, springs, etc. basically the whole head. do you think for now, with everything pretty much stock (have aem on there), i will benefit now and later with this set-up?

what you guys think? thanks.

oh yeah, what is the piping made of on the apex n1? is it coated or what?

 

You might as well upgrade the whole header-cat-exhaust system. However you should first determine your long term power goals, then get the parts. Otherwise down the road, you might need to get larger piping to extract the most from bigger cams/displacement. 2.5" piping throughout should be good. However, most Japanese exhaust manufacturers make 2.38" exhausts, which could be restrictive only if you have like 230+whp.

 

does anyone have any idea what kind of exhaust system and/or piping diameter that spoon uses on their endurance N1 DC2 R? i have the bestmotoringvideo with spoon's R in it, but it doesn't say it's specs. i know it has spoon 4-2-1 header, but i don't know the exhaust.

if anyone knows the exhaust and piping dia. for it or can help me find out that would be great.

thanks for all the positive feedback on my questions. it's helping me a lot.

 

I have the Spoon N1 exhaust on my car, and it uses 2.38" piping. This exhaust may look tiny, but its hella loud.