ok so here i got my 94 gsr motor and i want to fuilly build my gsr head leaving my block with itr piston/rod so that'll leave me with high compression piston. my questions is what part do i need to get and with just fuilly build head and itr piston, gsr tranny with obx lsd will this get me to 200whp? my goal is in the mid 13.xx or high 13.xx. let me know what are the cons and pros???

 

Its very possible with good cams,dual valve springs, Type R style intake manifold,portmatched t/b,bigger injectors, fuel rail, fuel pump, 3" intake & 2.5" exhaust piping on a good tune. I have a 208hp gsr havnt run a 1/4 @ the strip yet but thinking high 13's considering my friends cammed cat deleted ss silverado pushing 500hp only does 13.5 maybe a tiny faster now with his new torque converter he had a shift kit when he ran a 13.5 smashes me & my homies 350z with i/m, dual catback, intake, pulleys & tune

 

It sounds a bit like my build.

Engine Specs

Exhaust
SMSP 4-2-1 2-1/2” Header
SMSP High Flow Cat 2-1/2” 300 cell
PTM 2-1/2” Custom Exhaust w/Vibrant Muffler

Intake
RC Engineering Ported GSR Throttle Body 70mm>64mm
RC Engineering injectors w/clips 370cc
Edelbrock Performer X
Hondata Intake Manifold Gasket (blue)
AEM ITR Cold Air Intake
BPI 3" Velocity Stack

Block
USDM ITR Pistons (81.25)
USDM ITR Rods
(Compression Ratio ~11.6:1)

Head
DPR Stage 5 Port ‘n’ Polish
Rocker Arm Balance and Lightening
ITR Valves, ITR Springs, ITR Retainers, ITR LMA’s
CTR Intake Cam Shaft
ITR Exhaust Cam Shaft
ARP Head Studs

ECU
Skunk2 OBD2a>OBD1 Harness with IAB control
P72 OBD1 ECU
Hondata S300

Haven't been to the dyno yet with the new Intake System. In two weeks I'll know if I break 200whp or 140wtq.

 

Its very possible with good cams,dual valve springs, Type R style intake manifold,portmatched t/b,bigger injectors, fuel rail, fuel pump, 3" intake & 2.5" exhaust piping on a good tune. I have a 208hp gsr havnt run a 1/4 @ the strip yet but thinking high 13's considering my friends cammed cat deleted ss silverado pushing 500hp only does 13.5 maybe a tiny faster now with his new torque converter he had a shift kit when he ran a 13.5 smashes me & my homies 350z with i/m, dual catback, intake, pulleys & tune


with 500hp shouldn't he be hitting at least low 12's? i got a buddy of mine got a h2b in his eg with built head, itr tranny running 11.9 1/4 making 214whp. guess a smaller car will hit a better time??? So with,
Engine Specs

Exhaust
SMSP 4-2-1 2-1/2” Header
SMSP High Flow Cat 2-1/2” 300 cell
PTM 2-1/2” Custom Exhaust w/Vibrant Muffler

Intake
RC Engineering Ported GSR Throttle Body 70mm>64mm
RC Engineering injectors w/clips 370cc
Edelbrock Performer X
Hondata Intake Manifold Gasket (blue)
AEM ITR Cold Air Intake
BPI 3" Velocity Stack

Block
USDM ITR Pistons (81.25)
USDM ITR Rods
(Compression Ratio ~11.6:1)

Head
DPR Stage 5 Port ‘n’ Polish
Rocker Arm Balance and Lightening
ITR Valves, ITR Springs, ITR Retainers, ITR LMA’s
CTR Intake Cam Shaft
ITR Exhaust Cam Shaft

do you think you be able to hit 200whp? and be running a 13's in 1/4? can you give me an estimate of how much you spend on all parts/labor so i can get an idea of how much i will be spending on my setup? here i got a 3k to make it happen..lmk on cons/pros
thanks.
ARP Head Studs

ECU
Skunk2 OBD2a>OBD1 Harness with IAB control
P72 OBD1 ECU
Hondata S300

 

anyone help cons/pros??

 

I would get the B16A (PR3) pistons... Around the same compression with a little more head to piston clearance. Right now I only have my head gasket thickness between my piston and head.

 

so you trying to say b16a piston would be a better opion then an itr??? would that still bring the same compression as the itr?

 

I've been posting this calculator all over the place. You can put the setup you have/want in and see the output.

http://www.zealautowerks.com/

Also Inline4 sells B16A pistons that are made out of the same manufacturing plant but come with the same coating as the ITR's. They also have them in 81.5mm and 82mm so you can gain a little more displacement and compression.

http://www.inlinefour.com/il4peprpi.html

 

I meant to meet his 200hp goal not to run a crazy low 1/4 time, shoot I dont even know what my own car will do yet.

 

My GSR with the 184/135 is already in the 13's, high 13's but 13's. I am hope full to get in the low to mid 13's after the next tune.

 

were you running a lsd gsr tranny???? what tranny did you use? and was it a build tranny?

can i take out my obx lsd from my gsr tranny and throw it in a b16 tranny works?? any comments will help..

WOW, so with all that you already running 13's already. so that mean i dont really need to push 200whp then right???

will 3g do the trick running a 13's???

 

I'm running a ITR LSD in my GSR transmission. Tires, suspension, shift points, track conditions and driver all play a part in getting a good ET. A good MPH that is a different story.

 

Oops I guess he's @ 395hp my fault check the ss out @ some videos

http://www.streetfire.net/video/395-...-ss_642207.htm

http://www.streetfire.net/video/camm...-ss_713932.htm

http://www.streetfire.net/video/cam-...-ss_715871.htm

 

alright guys, here i have a gsr tranny with obx lsd including itr final drive 4.75.
my questions is is this a good combo so far as tranny only or should i go b16 tranny...like my frist post i'm just going fuilly build head and itr piston, will this be a good setup?? cons/pros thanks

 

mph is the better indicator of power. et can be drastically lowered with slicks and a good track. the same car might run 14.4 and 13.9 with nothing more than a change to slicks, a clutch that can take the slicks and a good track. being able to overcome those 2.4sec 60ft times from street tires is already a great start in drag racing. the vast majority of NA hondas i've seen at PIR are in the 15s. some of the better ones are in 14s. so far i haven't seen an NA car break 13s without actually being setup for drag racing. this means slicks, lightweigh etc..

 

will a h2b with a build head and itr tranny break a 12's????? i mean this thing is going in a dc2

 

stock pistons, .30 milled, skunk2 pro1's, sk2 intake manifold, sk2 pro springs and retainers, 68mm tb, hytech rep header, and a good tune