sirgsr14

hi guys i own a 2000 sir and was wondering if n e ones has some quick power tricks or low cost tricks?? i have type r pistons, aem cam gears,type r cams, type r ecu, short shifter, aem cold air intake and am running 14.1 - 14.3 looking 4 some more speed can n e one help??

spyder

Get yourself a good 4-2-1 header (like the DC Sports stainless header) and a good exhaust like the Greddy EVO or a couple others (I will let everyone else expound on the exhausts)

maxim

It looks to me like you have done everything from the intake going into the motor, except possibly your T/B and intake manifold - time to lessen the amount of restriction going out of the car(ie..Header and Exhaust). If you have the money you should get a Spoon 4-2-1 header or Greddy(cheaper and good quality). As far as exhaust go for the largest dia. possible (Thermal R&D or Apexi N1) and get a High Flow Cat(Carsonic). You should also invest in a fuel controller(Apexi VAFC) to fine tune your fuel delivery. Not really sure how far you are willing to go, but that should be a good start.

Civic Hatch Boy

like migs said, get an itr tranny. and then get an ITr.

spoonEK

I say go for **** and redo the exhaust. Get a JDM ITR header (4-1) with a high flow cat. You may lose a little midrange with the header but you will gain it all back and them some in the high end. If all else fails gut that thing....every 100lbs is roughly equal to 1/10 of a second in you quarter mile time.

DragII

14.1...yeah right. you got a 50shot your not telling us about?

sirgsr14

no nos my friend
come to montreal and watch me do it in front of u

DragII

driving 3000 miles to watch a 14 second car is not my idea of a good time.

nice times

RyanR

Do you have CTR pistons or ITR pistons?

sirgsr14

ITR why???

RyanR

Well installing USDM ITR pistons in a B16A will lower your compression while installing JDM ITR pistons in a B16A will keep the compression about the same. If you want more compression you need CTR pistons. And even those will only raise your compression to 10.8:1.

Jackson

ctr pistons will raise the compression to about 11.1:1 in a b16. b16 and ctr blocks are different.

sirgsr14

yes ctr and b16a blocks r different ctr is the same block as the ITR. they r japan itr. and should raise compression to 11.1

sirgsr14

itr tranny has the same gear ratio's as a SiR the only difference is that the itr has lsd

ahcjar103

yes ctr and b16a blocks r different ctr is the same block as the ITR. they r japan itr. and should raise compression to 11.1
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no


[Modified by ahcjar103, 2:32 AM 11/15/2001]

ahcjar103

itr tranny has the same gear ratio's as a SiR the only difference is that the itr has lsd
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and no

RyanR

The reason why the JDM ITR engine has a 11.1:1 compression is because it's 1.8L. You have 1.6L. Less displacement with the same piston means lower compression ratio. Trust me, you didn't gain any compression with those pistons.

sirgsr14

but look the block height of a sir is 263mm and the block height of a type r or a ctr for that matter is 270mm therefore the ctr comp ratio is 10.8 but if installed in a b16 the comp ratio is bumped 2 11.1 so by the same token the itr j spec piston will also be 11.1 or maybe even 11.4 the displacement of the engine is not the thing here its how the piston compresses in the block that counts and the block of a b16 is shorter making compression higher.
if it helps imagine shaving the head that would raise the comp ratio right??
well thats the effect of the pistons

sirgsr14

and yes the gear ratios in a itr and a sir r the same
1st 3.230
2nd 2.105
3rd 1.458
4th 1.107
5th 0.848
the same in both cars only itr has an lsd like i said
check up on it or go to hybrid.honda-perf.org

sloppy_seconds

i cant wait to see your times when you actually get that B16A in your friggin ride...tick....tick....tick.
--justin

RyanR

No, displacement of the engine is what raises the compression, not the block height. A 1.8L will always have more compression with the same piston than a 1.6L B-series. Have you ever looked at the two pistons? The CTR piston has tons more dome on it than the ITR piston. The CTR piston in a ITR block makes 12.2:1. Trust me, you do not have 11:1 or even 10.8:1 with those ITR pistons.

sirgsr14

then can u explain y a 10.8 piston from a ctr makes 11.1 in a b16a block??????
same diplacement same piston different block height