hey, i'm currently putting a JRSC on my semi-built gsr and was just wondering what some of your EDUCATED opinions would be that my whp/wtq would be?...

specs of motor:

- gsr head:
ctr cams/tru time adj cam gears
bored out TB to 70mm
HYTEC header leading to a 2.5'' piping buddy club spec II exhaust
RC 440cc injectors

- gsr block:
ITR rods
ITR crank knife edged and balanced
CTR pistons
ARP rod bolts
ARP head studs

- 97 spec ITR transmission (4.4FD)

- carbonetic single clutch kit

- WALBORO 255 FUEL PUMP

+

JRSC with LHT performance kit


EDUCATED comments welcome,
thanks for the help...

Mykel

 

Do you know how much boost the supercharger will make? I'm guessing the JHT performance kit would probably tell how much, but I'm lazy
It looks like you'll be making some pretty high compression, like over 12:1, so with the supercharger I'm guessing over 200 at least. How much boost and how well you're tuned will determine the amount of power and how long it will last.

 

220'ish whp, depending on the pulley size you go with.

 

Build it, tune it and dyno it and find out how much horsepower it makes. No need to bench race(i.e. guess my hp, e.t., etc.)

 

It has it's time and place. If you have certain goals in place and contemplating different setups, comparing two to each other isn't wrong...

 

Well, if you have a goal go with what you think, and your research indicates will achieve that goal, if you fall short, you will now have a benchmark for the next time. And for the most part, 99.9% of engine builds have already been done and there are statistics such as dyno sheets about them on this site, after all it has 10+ years of data for you to dig through, someone has already thought of or done it before.

 

not so sure boosting a 12:1 motor is a great idea. unless of course you build it right. obviously id invest in a sleeved block and arp hardware, everywere. but i just dont seet this lasting long. or for that matter beign worth it. the same money can get you a nice low comp. boosted setup. but good luck anyways.

 

my buddy just built a very similar setup and got it tuned with hondata at 10psi and made 248WHP but 10psi is not the stock boost on the JRSC it was 5psi he upgraded his pully

 

not enought power to compete in S/C or outlaw lol

 

^^ I doubt he cares about that. Not everyone wants to have high hp numbers. This sounds like the OP is a torque junkie, just like me .

He is doing the same thing I am in process of. Higher compression pistons with a JRSC. However, mine set-up is a single cam. y8 head, crower stg 2 camshaft, supertech valve springs/retainers, nitrate coated valves, rc 440s, z6 bottom with d16a1 pistons, shotpeened rods, arps head studs and rod bolts, and at least 8lbs of boost from the jrsc....oh yea, and tuned with Hondata with meth injection.

OP, my single cam with an upgraded head/valvetrain and 8 lbs of boost from the jrsc (no bottom end work done yet...stock y8 block still), I am making 175whp/160wtq. I don't see you making any less than 225 whp with everything you stated. GL with the build.

 

my bad i saw s/c and thought he was talking class. i see it ment super charged. my single made 430 whp & 305ft lbs torque on 26psi

 

i'll be getting it tuned by the #1 tuning shop in ontario, Magnus.
and i'm looking to run about 8psi.

ok, thanks for your reply.

well i've never ran a boosted/forced induction set up before.
i ran this motor before N/A and then decided to rebuild it after tracking.
and before that i had a built N/A b16. so i'm kinda new and was just curious about power goals. but thanks for your input!

yes, thank you.

yes, i was going to dig, but it was late and my friends and i were just tossing back what power/tq it would make.

sorry i forgot to add in it has ARP headstuds and ARP rod bolts.

i will be running hondata s300

looking for torque and wanted that constant boost for circuit, didn't like the idea of having to keep the turbo in constant boost for circuit.

hmm interesting, thanks for your input! and yes i wanted that torque, not many honda owners know what torque is

you were running S/C?
did u run JRSC or VORTEC?

 

lol highly unlikly and basicly imposible this man had a turbo D i would bet my life on it

 

that's what i thought, but this is a SUPER CHARGER thread.
so i wasn't sure if he was talking about a S/C on 26psi or the more obvious d-boost.

 

bump, anyone else?

 

Why dont you throw rods and pistons in there instead of stock ****?

 

it is a turbo d

when i first saw the thread and saw s/c i thought he ment he was strying to built a street comp car.

since this is a supercharger thread

 

beefing the whole bottom end would be a good idea. ARP studs for the crank caps wouldn't be bad. Methanol or water injection may be something to consider, I guess someone already mentioned that though.

I heard of a guy running 11:1 and like 5lbs of boost on a car he AutoX races, and the logic in running high compression makes sense, but usually you only need real high compression for really aggressive cams that make power past 8k RPMs. If you're dead set on 12:1, I have a set of used Wiseco 81.5s that I could sell reasonable if this English guy doesn't want them. I'm only throwing that out there because while cast are fine for NA, forced induction is a little harder on parts and forged wouldn't be a bad idea. Or at least find a different high compression piston because CTR pistons cause poor burn characteristics due to the giant dome. At least research it before running them. If anything, you could run a ITR piston and a little more boost

 

50-60% increase over stock

 

ctr pistons with a gsr head + s/c,**** that doesnt sound to good but its your call!

a properly sized turbo as a rule of thumb is supposed to up hp by 7% per psi untill it runs out of breath.

a properly sized s/c up's the hp figures by 3-4% per psi but yields much better bottom end numbers.

its not easy to guess the numbers you would make without the s/c let alone together. but as I said your really pushing your luck with the combination you have if you ask me.
I would really suggest you use gsr pistons instead of the ctr's besides how did you guys calculate 12.1 with ctr's in a b18c block using a gsr head? its more than that according my figures and real world math instead of online comp calculators

 

bump, anyone else?