Poll of Members who actually have 12:1 CR in their B18C
what pistons did you use?
do you have stock ignition?
do you use a J&S Safeguard?
do you run an aftermarket fuel pump?
what's your injector size?
what's your current ignition timing?
Moi?: Endyn/Wisecos, MSD 6AL/Antivibration blaster 2 external coi/Magnecore wires/#7 NGK's gapped 0.040 in., RC 310's (S2000 360's on the way), Bosch fuel pump, 13 degrees BTDC...
do you REALLY need the J&S?
do you have stock ignition?
do you use a J&S Safeguard?
do you run an aftermarket fuel pump?
what's your injector size?
what's your current ignition timing?
Moi?: Endyn/Wisecos, MSD 6AL/Antivibration blaster 2 external coi/Magnecore wires/#7 NGK's gapped 0.040 in., RC 310's (S2000 360's on the way), Bosch fuel pump, 13 degrees BTDC...
do you REALLY need the J&S?
Joined: Dec 2001
Posts: 9,091
Likes: 28
From: the internet and I WILL STEP ON YOU
i have 12.4-12.5 cr. ctr pistons and mugen thin head gasket. stock plugs, ignition at 15. stock injectors. i dont use a j&s. i hear no detonation, none was shown during dyno tuning. stock fuel pump
count me in, JE 12.5:1, RC 310cc (installed today), GSR fuel pump, timing 14 (still gettin seat time), ECU programs to choose from MUGEN, SKUNK2, PYR, XS in P28 ECU, stock ignition, no J&S.
Toda 81.5mm pistons, 370cc RC injectors, stock ignition system, Hondata ECU, 94 octane gas. No J&S and running stock (16 degrees) ignition timing.
CTR Pistons
MSD 6a w/ Blaster 2
stock fuel pump
440cc injectors
stock ignition timing with custom hondata program
dont REALLY need the J&S, its peace of mind, i got some skunky gas once and the thing was going off like an XMAS tree.
[Modified by Sexual Chocolate-616, 1:14 AM 6/13/2002]
MSD 6a w/ Blaster 2
stock fuel pump
440cc injectors
stock ignition timing with custom hondata program
dont REALLY need the J&S, its peace of mind, i got some skunky gas once and the thing was going off like an XMAS tree.
[Modified by Sexual Chocolate-616, 1:14 AM 6/13/2002]
Toda Pistons (12.6:1..but milled head to get 12:1 perfect....wouldn't do that again and run 12.6)
stock ignition (NGK power cables, BKR7 plugs)
no safeguard
stock Si pump (although I just installed a 255 Walbro)
440cc injectors
stock timing(Yoshio tuned ECU).
[Modified by TodaSi, 1:20 AM 6/13/2002]
stock ignition (NGK power cables, BKR7 plugs)
no safeguard
stock Si pump (although I just installed a 255 Walbro)
440cc injectors
stock timing(Yoshio tuned ECU).
[Modified by TodaSi, 1:20 AM 6/13/2002]
Trending Topics
1.8L 12:1
CTR pistons
MSD 6A
J&S
bosch pump
310cc @75psi
18 degrees base
2.0L 13.5-14:1(by my calculations)
JE small dome pistons
everything same as above except 440cc injectors
CTR pistons
MSD 6A
J&S
bosch pump
310cc @75psi
18 degrees base
2.0L 13.5-14:1(by my calculations)
JE small dome pistons
everything same as above except 440cc injectors
ENDYN/Wiseco 81.5mm 12.6:1 with B16a head milled .040.. I would say 13.6:1ish
Yes
No
No
270cc but 390cc are on the way
19 deg
HKS S35i plugs (#7)
car makes good power and no sign of detonation.. 96+ Octane
Yes
No
No
270cc but 390cc are on the way
19 deg
HKS S35i plugs (#7)
car makes good power and no sign of detonation.. 96+ Octane
CTR pistons
12.1:1 CR
16 degrees base timing
RC 440 CC/min injectors
46 PSI static fuel pressure
Hondata stage 2
94 Octane
No detonation
No J&S
[Modified by canuck-mx6, 4:47 AM 6/14/2002]
12.1:1 CR
16 degrees base timing
RC 440 CC/min injectors
46 PSI static fuel pressure
Hondata stage 2
94 Octane
No detonation
No J&S
[Modified by canuck-mx6, 4:47 AM 6/14/2002]
thanks to all who replied and were willing to share their experiences.
So Stephen is the only person wise enough to invest in a J&S.
Tony the Tiger runs a J&S as well.
Mine is on order. The investment outweighs the gamble of losing more (pistons, head, etc.).
also good to see that the stock ignition is up to the task. Erick Aquilar uses a stock system on his 2.1L B18C1 ....it's no slouch.
As I was saying to TodaSi on our PM: Every one of my modifications for this all motor mantra setup has had a headache or glitch associated with it...a monkey wrench thrown in, fly in the soup,...that needed some sort of adaptation to make it fit or work.
Not one was a straight bolt-on using the hardware supplied and walk away. I think it's great that we all share info enthusiastically but very little is mentioned in the way of potholes you may run into here. I must be the unlucky one that seems to find these? I don't think so. It's always good to see people who actually did the modification themselves answering these questions...more insight from actual experience.
On that theme, what major unexpected headache or delay did you face in setting this project up (either in the build up or tuning) ?
As I also said to TodaSi and SMSP when we chatted: could you imagine if people in my profession shared info the way people do in the import scene?: Yes, get that new Nakadate synthetic artificial heart valve guaranteed to last the lifetime it's in....what you didn't know that you needed special tissue glue and titanium acrylic sutures for it now that we have the patient's chest cracked open?!!
[Modified by Michael Delaney, 1:02 AM 6/14/2002]
So Stephen is the only person wise enough to invest in a J&S.
Tony the Tiger runs a J&S as well.
Mine is on order. The investment outweighs the gamble of losing more (pistons, head, etc.).
also good to see that the stock ignition is up to the task. Erick Aquilar uses a stock system on his 2.1L B18C1 ....it's no slouch.
As I was saying to TodaSi on our PM: Every one of my modifications for this all motor mantra setup has had a headache or glitch associated with it...a monkey wrench thrown in, fly in the soup,...that needed some sort of adaptation to make it fit or work.
Not one was a straight bolt-on using the hardware supplied and walk away. I think it's great that we all share info enthusiastically but very little is mentioned in the way of potholes you may run into here. I must be the unlucky one that seems to find these? I don't think so. It's always good to see people who actually did the modification themselves answering these questions...more insight from actual experience.
On that theme, what major unexpected headache or delay did you face in setting this project up (either in the build up or tuning) ?
As I also said to TodaSi and SMSP when we chatted: could you imagine if people in my profession shared info the way people do in the import scene?: Yes, get that new Nakadate synthetic artificial heart valve guaranteed to last the lifetime it's in....what you didn't know that you needed special tissue glue and titanium acrylic sutures for it now that we have the patient's chest cracked open?!!
[Modified by Michael Delaney, 1:02 AM 6/14/2002]
Endyn RW/Wiseco 81.5 mm
Stock ignition
No J/S
Stock fuel pump - probably going with Walbro in future
Injectors 310 cc/min
Conservative timing
Hondata Stage 2 - next
Stock ignition
No J/S
Stock fuel pump - probably going with Walbro in future
Injectors 310 cc/min
Conservative timing
Hondata Stage 2 - next
i dont personally think the J&S is that great of a tool. i figure that if u pay attention to ur motor, read ur plugs, look for telltale signs of detonation that u should b good to go. also the thought of havin forged pistons helps aleviate the pain and thought of the possibility of my motor blowing up.
as far as potholes in the buildup, there was only one for me. waiting for the machine work to b done, that took the longest, o yeah plus at the time i didnt have my parts. once the parts came everything went together easily. i cleaned the honing oil out of the block, i sprayed the WD40 in the cylinders after washing them, i did the assembly from bottom to top. everything went smooth. sorry to hear that ur motor didnt go as smooth.
as far as potholes in the buildup, there was only one for me. waiting for the machine work to b done, that took the longest, o yeah plus at the time i didnt have my parts. once the parts came everything went together easily. i cleaned the honing oil out of the block, i sprayed the WD40 in the cylinders after washing them, i did the assembly from bottom to top. everything went smooth. sorry to hear that ur motor didnt go as smooth.
what pistons did you use? CTR pistons will a GSR head milled 20 estimated 13:1 compression
do you have stock ignition? I had aftermarket ignition but stock worked fine too, Nology wires
do you use a J&S Safeguard? no
do you run an aftermarket fuel pump? no
what's your injector size? stock with fuel pressure turned way up, skunk ecu (rich program)
what's your current ignition timing? 15
Moi?: Endyn/Wisecos, MSD 6AL/Antivibration blaster 2 external coi/Magnecore wires/#7 NGK's gapped 0.040 in., RC 310's (S2000 360's on the way), Bosch fuel pump, 13 degrees BTDC...
do you REALLY need the J&S? recommended but no
[Modified by Michael Delaney, 1:03 AM 6/14/2002]
do you have stock ignition? I had aftermarket ignition but stock worked fine too, Nology wires
do you use a J&S Safeguard? no
do you run an aftermarket fuel pump? no
what's your injector size? stock with fuel pressure turned way up, skunk ecu (rich program)
what's your current ignition timing? 15
Moi?: Endyn/Wisecos, MSD 6AL/Antivibration blaster 2 external coi/Magnecore wires/#7 NGK's gapped 0.040 in., RC 310's (S2000 360's on the way), Bosch fuel pump, 13 degrees BTDC...
do you REALLY need the J&S? recommended but no
[Modified by Michael Delaney, 1:03 AM 6/14/2002]
1.8L 12:1
CTR pistons
MSD 6A
J&S
bosch pump
310cc @75psi
18 degrees base
2.0L 13.5-14:1(by my calculations)
JE small dome pistons
everything same as above except 440cc injectors
CTR pistons
MSD 6A
J&S
bosch pump
310cc @75psi
18 degrees base
2.0L 13.5-14:1(by my calculations)
JE small dome pistons
everything same as above except 440cc injectors
Is this pig on pump gas????
just for *1* octane point
I was running over 12:1 with no problems
Stock ignition with bkr7e plugs
Endyn rollerwaves
type r head and cams
stock injectors
stock fuel pump
raised fuel pressure
chipped ecu
16 degrees base ignition timing
made 196 hp and 141 ft lbs
I had no problems, i ran that setup for about 10k miles and sold the motor to a friend. It's still running strong.
J&S isnt needed IMO.
Stock ignition with bkr7e plugs
Endyn rollerwaves
type r head and cams
stock injectors
stock fuel pump
raised fuel pressure
chipped ecu
16 degrees base ignition timing
made 196 hp and 141 ft lbs
I had no problems, i ran that setup for about 10k miles and sold the motor to a friend. It's still running strong.
J&S isnt needed IMO.
C1 Head and Block...
JDM ITR slugs
Mugen Gasket
Stock Ignition (yes with NGK Wires)
NO J&S
Stock Fuel Pump
240cc Honda up to 250cc via RC Engineering
16 Degrees BTDC
NGK #7 w/ stock Gap
C5 Head and Block
-Exact same set-up as mentioned above, but it doesn't quite make the 12:1 mark
JDM ITR slugs
Mugen Gasket
Stock Ignition (yes with NGK Wires)
NO J&S
Stock Fuel Pump
240cc Honda up to 250cc via RC Engineering
16 Degrees BTDC
NGK #7 w/ stock Gap
C5 Head and Block
-Exact same set-up as mentioned above, but it doesn't quite make the 12:1 mark




