all motor gsr

[whtteg]

Originally Posted by pr0m3

First, You can't bore a B16/18... to 84mm because the cylinder walls would be to thin. Honda uses an open deck design. Therefore you would have to get your motor resleeved (AEBS, Golden Eagle, Darton $1000-1400)
Second, if you wanna go turbo and run a respectable amount of boost (8psi and up) you need to get your rods shotpeened or better yet, buy aftermarket (Crower, eagle...)
Finally, you are gonna have to replace your stock cast pistons with forged pistons (je, wiseco, arias, endyn)

That is just the block, you haven't even touched the valve train, cooling, axles (which will snap when you launch a 250whp car) the turbo itself, guages, ecu... the list goes on and on.

To do it right your looking at about 10 grand or you can be like some of my buddies and go through three motors a year blowing shit up.
Just my 2 cents.

Dude go to amazon.com, spend 15 bucks and get a book by Mike Kojima called " Honda/Acura engine performance

Sorry dude but you can bore a B series block to 84mm safely, just cannot boost it.

[aznboi4lyfe]

alright, i have decided to increase my budget to around 5gz for my engine, and like 2 gz on looks....

so far i have decided to get baseic i/h/e 4-1 headers like whtteg said. ECU . cams . 11:1 c/r pistons and eagle rods.

wut type of cams wud b recommended? iono much about cams...

and do i need to get nething before i do my pistons??

[aznboi4lyfe]

how much wud increasing bore cost??? wut effects will if have?

[aznboi4lyfe]

ok..i've been doin some reserach, and i wud put in an intake manifold before i buy the CAI..do i need to do the same wi tthe exhaust? does changing the exhaust manifold effect anything?

[whtteg]

The exhaust manifold will be replaced with the header.

[aznboi4lyfe]

so for the intake manifold..i wanted the skunk2..but i heard it messes up the vtec? will somebody explain this to me and how to fix it. does this mean that there will not b 2 vtec engagement after i install this. heard a vtec switch over is involved..wut is that?

[aznboi4lyfe]

skunk2 is type r intake manifold rite?

[aznboi4lyfe]

another quick qeustion..after type r intake manifold is installed..wud a 3 inch. diameter short ram fit in the engine?

[tsugsr]

as for the last question more than likely yes, the manifold is roughly the same size as the old one, and its in the same location

[whtteg]

The ITR intake manifold will not fit the GSR. The GSR has a dual runner intake manifold, if you get the skunk 2 intake manifold then you will loose the secondaries runners. That is probably what you had heard

[aznboi4lyfe]

nono..there is a thread in this integra forum that states that a skunk2 intake manifold can fit in the gsr..just takes alot of work.

[aznboi4lyfe]

york2600 []
AF Enthusiast

Joined: Jul 2002


Status: offline
Posts: 139

02-05-2003, 07:45 PM Skunk2 Intake Manifold (Post #1)
This is from a reply I made to another post, but I searched so long to find information from someone that had installed their own Skunk2. Here's everything you need to know before considering it. Correct me on anything I'm wrong with or something I missed.


I bought a Skunk2 about a year ago. First off the Skunk2 is an exactly clone of the Type R intake manifold except it bolts up with the head on the B18c1 in the GSR. For some reason Honda decided to be difficult and make the bolt patterns opposite for the B18 and B16 (Type R head is based off the B16). Anyways.... It makes a lot of power. Simple as that. If you've ever been in a Type R and heard the scream of VTEC, it's the intake manifold. If you want that on a GSR then go for it.

What's different between the GSR's manifold and the Type R:

The GSR's intake manifold goes down towards the ground and has 2 runners (passages for the air to flow in). From idle to a certain RPM only the first runner is open. This runner is better for low end power, but when you get to a certain RPM (it's been a while so I forget) the second runner opens which is better for high end power. This allows the GSR to make a good amount of power in the low end while still having a pretty powerful top end too.

The Type R manifold goes up towards the hood. This presents a few problems that I will get to in the bottom of this post. It also employs a single runner design. The runners are shorter in distance so they produce more power. Now the bad part is they produce a LOT of power in the top end, but you will drop in the low end. It takes a little getting used to and kinda sucks since low end is cruisin around town power. I've heard that if you upgrade the cams you won't feel as much of a low end drop.


Now for the crappy part:

A) Since the GSR and Skunk2 intake manifolds go different directions the throttle body is in a different place. This means that intakes often wont line up, especially CAIs. Way shitty. There are two things you can do. A) buy a CAI for the LS/GS/RS or B) Get a Type R CAI. I got a Type R CAI because it's bigger than the LS CAI. I'm not sure if that makes any difference, but oh well.

B) Since the GSR's intake manifold sits really low Honda had the throttle cable for the throttle body go up towards the hood. If you slap a Skunk2 intake manifold on there it will hit the hood. This requires you to buy the throttle cable part that attaches to the IM on the Type R. I forget what it's called, but I can get the name for you if you need it. I think it's like $10 or something. Then you need to make the throttle cable fit around the rotor on the throttle body. It wants the cable to wrap around and come out at the top, but you need it to come out on the right side so it can run down the intake manifold towards the driver side wheel. It can be done.

C) Get new gaskets for the intake manifold and the throttle body. Reusing gaskets is a bad idea

D) The bolts on the bottle of the GSR's manifold will make you pull your hair out. They are a pain to get out

E) The support bracket for the GSR manifold is worthless when you have the Skunk2. I took mine out. It required draining the coolant and putting a new coolant hose in since the heater hose is welded onto the support bracket. You can leave it, or you could drop a pound (eat 1 less cheeseburger and you'll get the same weight drop when you drive your car).

F) You also have to buy a little support part that holds the fuel rail into the intake manifold. Again you can get it from Acura. If you buy an AEM fuel rail you don't need it.

G) You have to be careful when you take the fuel rail and injectors out. If you remove the injectors from the rail then you need to replace the o-rings. You might want to do it anyways while you have everything pulled apart. They're like 50 cents a pop from Acura.

-Tim




that is the thread...can u tell me wut u think of this? is this bs..orr..?? and some guy in the thread said that since there is onli 1 runner ..and the gsr has 2 vtec engagnments..then he said sumtin about vtec switch over to a lil under 5800...

[whtteg]

In my previous post I said that the ITR IM would not fit the B18C1, not that the Skunk 2 would not fit. The Skunk 2 is a replica of the ITR IM except it has a different flange and bolt pattern so that it will bolt up to the B18C1.Now for the 2 VTEC engagements, the B18C1 does not have 2 VTEC engagements it has the VTEC engagement at a certain rpm the at a little higher rpm the secondary runners open up and create another change in engine sound, this is commonly confused as a 2nd VTEC engagement.

[whtteg]

Oh and a tip for TI, search alot before you post something over there or it will get locked quickly, like your post about this did.

[aznboi4lyfe]

oo..even though it is a replica..still good for top end rite? i want all my mods to aid my top end... is there any other intake manifold that will help top end?? that does not require so much work on installation...suggestions?