2.0 JRSC TYPE R

[2000R]

Will the SC on my car supply enough air if I use it on a 2.0 engine?

I have done some damage to the engine so looking at some different set-ups.

<font color="#a62a2a" size="1">[ February 23, 2002 11:31 PM: Message edited by: 2000R ]</font>

[2000R]

anybody?

[klintman]

it would be rather subjective to theorize hp . when tuned well it should make a good deal more power . youll have to upgrade the fuel system for shure . what compression ratio do you plan to run with more boost ? do you have any engine management (stand alone) in mind ? have you talked to a tuner or mechanic about this ?

[klintman]

the eaton m62 should be enough for 2 liters . its actually used on some engines surpassing 3 liters .

[klintman]

the eaton m62 should be enough for 2 liters . its actually used on some engines surpassing 3 liters .

[2000R]

I was thinking 200cc wounld make that much differance. Any guess on whp with 2.0 ITR with 10lbs JRSC? Hope for 270 plus, with a flat tq cruve.

[gsrev]

(licking my chops [img]biggrin.gif[/img] ) B20vtec w/ itr head & jrsc @8psi is very nice. I had the pleasure of helping build one on a 98 gsr and it ran like a scolded bandit. My hatch was running mid 12's at 12 psi (w/ jrsc) and he was not too far from me. He never took it to the track but I would estimate a high 12 low 13.

[Rboosted717]

It wouldn't be worth it to keep the JRSC after a 2.0l build. See when you do lower compression and also going to a larger displacement, you will lose boost. How do I know? A friend lowered his compression on his JRSC R and he lost hella boost. He later had to raise the boost even more to just match his previous peak power. Then the blower started to heat up and he start to loose power.
The only real gain you will get is the ability to run better timing which will give you a better low-end pull. By raising the timing to stock, adding some more boost and tuning it you will get around what you had before (peak power) or slightly higher pending tuning, however you will get a better low-mid range power curve.

I too was gonna go 2.0l with the JRSC, however after seeing what happened to my friend I said forget it. Here's a dyno plot of a 2.0l fully built engine done by Comptech (owner worked for comptech) and it was fully tuned with a 10psi pulley (max for the M62 blower which major heat problems).


Here's a list of his engine mods when he dyno'd and tuned it:
CRV B20B4 Bottom End
- Line Honed
- Decked
- 84.25mm Bore
- JE Custom Low Compression Pistons
- Crower Type-R Length Forged Rods
COMPTECH Modified Jackson Racing Supercharger
COMPTECH Hard Anodized Billet Aluminum High Boost Pulley
COMPTECH 65mm Throttle Body
COMPTECH Port Matched & Polished Cylinder Head w/Stainless Valves
COMPTECH FMU
COMPTECH Stainless Steel Header
COMPTECH Port-Matched Stainless Steel Cat Drop Out Pipe
COMPTECH Port-Matched Polished SS Exhaust
COMPTECH High Performance Type-R ECU
COMPTECH Red Anodized Aluminum Intake with High Flow Filter
COMPTECH High Flow Fuel Injectors
COMPTECH High Flow & High Volume Fuel Pump
COMPTECH 6.75lb Lightweight Flywheel
Moroso Aluminum High Volume Oil Pan & Pickup
AEM Clear Anodized Billet Aluminum Fuel Rail
ACT Xtreme Pressure Plate
ACT Organic Performance Disk
Skunkworks Red Anodized Cam Gears
BOSCH Platinum 4 Spark Plugs


Anyway if I were you I would go turbo if your gonna do all that work because the JRSC will not work as well. Basically the JRSC runs out of air (pull) at higher boost and rpms. Also the JRSC is limited to a max a 10psi on our M62 blower. My have tried to go higher but end up busting the blower due to heat or over reving the blower. With a larger engine/displacement/compression you have to boost it higher to keep your boost reading high. A 10psi blower pulley on the JRSC with a built 2.0l engine like the one above reads like 8-9psi.

[AMslp_late]

Rboosted717 is right. Increasing displacement does "lower" boost, and I wouldn't lower compression because of that. I've got my B18C1 bored out to 1933cc and I'm running close to the redline of the blower with UR CRV crank pulley and a 3.8" blower pulley. At WOT I'm lucky if I get 10psi of boost. I have only gotten to 6000 rpm tho (engine break-in) so who knows what it will do up higher. I kept my compression to the stock 10:1 to try to keep my power output high. There are heat issues with the blower running that fast and the only hope for help is either a small nitrous kit or the fabled intercooler. My car is strong on the bottom tho... it feels like it has gobs of tq. I'm afraid that my peak hp numbers won't be that high tho... cause of the heat generated by the blower. Oh well... I'll find out soon.
Good luck on whatever you do. [img]graemlins/beer.gif[/img] [img]graemlins/beer.gif[/img]

[Zeus]

...build your 2 liter with stock compression, using pistons less prone to detination... It really can be that easy...

...let the idiot wars begin...