okay so this is going to be my first all motor build.. my first build in something big actually.. so lets start off i have a stock 95 integra gsr with very high miles.. what a perfect time to build right haha.. anyways i live in Cali so we have strict smog laws and all that so i wanna keep things smog legal as possible cause this is going to be my daily driver.. after many late nights of research and reading my plans are...

GSR bottom block
over size type r pistons
some forged rods not sure which yet
stock crank
arp everything

99-00 civic si b16 head
port and polish
ctr intake and exhaust cams
skunk2 pro series IM
310 injectors

and my stock gsr tranny with my exedy stage 1 clutch
and i/e/h
and of course i will tune after

im not lookin to go all out but i still wanna be able to hit 13s at the track all day but also something reliable to take me to school and work..

what do ya n/a builders think about that set up? what things should i change? will this set up reach the goals im lookin to get? all advice and comments are welcome. thanks

 

You'll have problems trying to mate an aftermarket rod with an OEM piston. Most aftermarket or forged rods use a C-clip to secure the wrist pin in place, OEM pistons use a press fit style pin.

Your stock rods should be perfectly fine for your uses, otherwise if forged is what you want buy aftermarket pistons w/rods.

 

oh ok thanks!!.. if i were to go with after market pistons which brand and compression would be best for my needs?? still going to be my daily driver

 

just get your stock rods resized with arp rod bolts. they will be fine. if you must have forged rods the rs machine "spec" type r pistons are compatible with forged rods. the cheaper forged rods alot of the time need a little extra machineing.

 

Keep your GSR head and get a skunk2 pro series IM for the GSR head. Get it PnP. Unless you already have the Si head.

bigger throttle body than stock, or bore you stock one out to 64mm
Good header, SMSP/Hytech/Bisi
2.5" exhaust
3" CAI intake with a Velocity Stack
upgrade your valve springs to match your cams
may need bigger cams to to get into the 13's all day.
a basic simple build, good plan
I think that about covers it.

 

Take my advise i just built a 216hp 1.8l gsr!
You can use your stock rods theres no need to get aftermarket rods waist of money!
Use p73-00 (JDM B18C5) pistons to get a 11.412647796806272 compression ratio which is great for pump gas.
i would sugesst upgrading your cams to take atvatage of your port and polish maybe sk2 tuner series or the sk2 pro1 series cams, buddyclub spec 4, its up to you ctr cams are still stock mild cams, but if you dont have a upgraded valve train just stick with your ctr's. a 68mm throtle body with a 3'' itr cai would be a nice power adder to go along with your sk2 intake manifold. you should be in the 200-210 hp mark if tuned right.

 

I think that was only for the RS 84mm/B20 ITR piston. I'm pretty positive the 81-82mm pistons only use the press-fit pins. The inability to use the C-clips probably comes from the tolerance (space) required to fit the clips, which the 84mm has over the 81-82.

 

thanks to everyone.. so instead of using a b16 head and building that i should just use my original gsr head and build? i just thought that b16 head have more compression and i thought thats what i would need.. i havent got the b16 head yet but saving any amount of money would be good.. so if i keep my gsr head what valvetrain and camshaft would ya recommend for my goals?? and if i get oversize type r pistons i know i would need a bore what if i just get the regular normal type r pistons would that be puttin as much power??

 

and how much do you think ill end up spending for the valve train and cam set up.. still tryin to figure out whats best for a daily driver monster haha

 

The GSR head has a smaller combustion chamber then the B16 so keep what you got. Pick your powergoal and do your research, check the dynothread if you need comparsions on what HP/TQ is likely for said setup.

 

I built a similar motor.....
only difference was that i used CTR pistons.... Ran strong!!
we have 94 octane in Ontario though....

 

Your block has a lot of mileage on it so get it bored once you have the new oversize pistons. JDM ITR pistons will give you 11:1 compression and using the GSR head will bump you to roughly 11.3:1 which is great for a street performance car. Your head should at a minimum get a new valve job (ask for a type R 3 angle valve job as it's a little better than a stock GSR valve job).

As for cams, how stock like do you want this car? what kind of tuning will you be using? If you'll be smogging it, I'd run something like the older Skunk 2 TUNER series stage 2 cams and their respective valvetrain, or supertech. They are proven to make great power, idle like stock (good for emission testing) and are easy to tune.

 

okay so my plans kinda changed.. how does this sound

gsr block with oversize type r pistons
arp everything
is there anything else i need to do to the bottom block??
should i get some aftermarket forged pistons and rods with the same specs of oversize type r pistons? it just sounds more reliable to do so..

gsr head port and polish
skunk2 tuner series stage 2 camshafts
would i need to get matching tuner series cam gears?? or use stock cam gears
skunk2 tuner series valve spring set
skunk2 forged exhaust and intake valves.. should i get the standard compression ones or the the high compression ones?? stock size or over sized??
skunk2 IM with a bore out TB prolly 64mm
310 injectors
i/h/e

not sure on what kind of tuning. if i could find a good deal on hondata i would do that since i hear thats best, if not which other tuning would good??

sorry for all the questions this is my first build. thanks to everyone so far this helped me out a lot.

 

The forged parts shouldnt be nessasary unless you think you'll be doing alot of hard racing with this thing or if you'll be using power adders. You could shotpeen the stock rods for a little added strength.

Tuning will insure that everything will hold up and that you make the most from your combination. The Hondata is a little overkill IMO unless you want to swap maps for alternate tunes/timing settings, fuels, N20, and all that jazz. To keep it simple just get an OBD1 ecu (if you dont already have one) and have it chipped+socketed then get it dynotuned, done!

 

you should use the .5 oversized JDM itr pistons so you get more comp./hp! port match your intake manifold to a 68mm tb, thats best for n.a! if your porting your head use sk2 pro 2 cams! just ask sk2 if you havent already, and if you use the high comp. sk2 valves you will bump comp. by .3 i believe in all you might yeild 11:9 use standard size valves you will be at 11:6 perfect for 91 pump gas/street car, infact you can use jdm b16a pistons so you will have a 11:9 comp using std size valves!, you have to use aftermarket cam gears! i use hondata s100 imo, no need for all that forged parts like said before you can shot peen your rods for added streangth i gaurantee you after tuned you will have a verry reliable beast!! take a look at my setup,

99" gsr head no port!!
3 angle vj
sk2 std valves,springs,retainers
sk2 pro 1 cams
sk2 pro series i.m port matched to a 68mm t.b
aem 3'' itr cai
1.8l gsr block,ebay jdm itr pistons/stock rods,acl bearings,balanced ect
ebay tri-y header,buddyclub spec 3 catback
m-factory race tranny
rc 310 injector,hondata s100 tuned at churches dyno at 216hp 150tq!
you would be 220+ with my mentioned setup and to add it drove just like stock even with my tranny but was a rocket when pushed!!

 

wow that sounds sick.. thanks everyone for all the input i appreciate it.. anyone else got any more advice??

 

Sounds like your plan is starting to come together. Keep reading up on other builds to find out what works and what doesn't.

 

so i been reading about some similar set up and people are using LS crank? what benefits are there from a LS crank? cause a buddy of mines has a LS with a spun bearing so im thinkin about rippin the crank out of there

 

i think it will stroke the motor, just stick with your oem crank and get it micro polished and balanced.

 

whats your budget? run a chipped p28 ecu (phearable.net) good guy! and also get the conversion harness, total will run you under $240. have you done an estimate on how much $$$ this will total up to?

 

well the motor is already obd1 so no need for a converson harness and yeah probably p28 but im not sure of an estimate on the build as i wasnt so sure on what i needed to buy but ill figure it out soon and let you know how much

 

i have this set up on my car. im using topline itr oversized pistons. u will have to bore the block because of this rebuild. stock connecting rods work. its a good idea to get your ecu tuned on a dyno.