Help & advice on a all motor daily use b18c5
I have a B18c5 in the docks clearing customs from Japan (I'm in the UK BTW).
Its got a single layer headgasket (11.7CR i think) & jun 3 cam's
I have a ported polished B16B intake manifold & a 68mm TB to go with the motor as it didnt have one with it.
What sort of power should i get from this set-up I've searched & had a look around & I guess 220-240hp at the flywheel?
One thing I could do with some help on is what rev limit to use, daily it wont get much trashing but on track it will
Thanx for the help & advice in advance BillB
Its got a single layer headgasket (11.7CR i think) & jun 3 cam's
I have a ported polished B16B intake manifold & a 68mm TB to go with the motor as it didnt have one with it.
What sort of power should i get from this set-up I've searched & had a look around & I guess 220-240hp at the flywheel?
One thing I could do with some help on is what rev limit to use, daily it wont get much trashing but on track it will
Thanx for the help & advice in advance BillB
that type of power is NOT a guaruntee as achieving that kind of power is MUCH harder than people make it seem.
i have a b18c (jdm itr) with ctr pistons and bored .025 over, runs 11.7:1 cr with admittedly stock b18c5 head and usdm itr cams that only did 177.6 with apex vtec controller on dyno
i would guess you should be happy with 200, and if more be very grateful...just saying be prepared for reality
anyway, cheers to ya
i have a b18c (jdm itr) with ctr pistons and bored .025 over, runs 11.7:1 cr with admittedly stock b18c5 head and usdm itr cams that only did 177.6 with apex vtec controller on dyno
i would guess you should be happy with 200, and if more be very grateful...just saying be prepared for reality
anyway, cheers to ya
1. Put OEM 3 Layer Headgasket back in.
2. Put in OS 0.25mm CTR Pistons. (Have them balanced if at all possible)
3. Have your rods balanced.
4. Have your crankshaft lightened just a little and balanced.
5. Have your block aligned bore and honed.
6. Put in Toda Spec A camshafts.
7. Put in ITR Outer Intake Valvesprings and portflow inner valve springs.
8. Keep Stock Retainers.
9. Have head slightly port and polished.
10. Have intake manifold port match.
11. Go with a slightly larger throttle body.
12. Put K&N Filter on stock box.
13. Put in Toda Flywheel.
14. Put in 4.7 Final Drive.
15. Tune on Dyno with Hondata.
That should make a reliable track/road car with plenty of power.
2. Put in OS 0.25mm CTR Pistons. (Have them balanced if at all possible)
3. Have your rods balanced.
4. Have your crankshaft lightened just a little and balanced.
5. Have your block aligned bore and honed.
6. Put in Toda Spec A camshafts.
7. Put in ITR Outer Intake Valvesprings and portflow inner valve springs.
8. Keep Stock Retainers.
9. Have head slightly port and polished.
10. Have intake manifold port match.
11. Go with a slightly larger throttle body.
12. Put K&N Filter on stock box.
13. Put in Toda Flywheel.
14. Put in 4.7 Final Drive.
15. Tune on Dyno with Hondata.
That should make a reliable track/road car with plenty of power.
why ditich the Jun3's in favor of toda a's. Keep the JUN since you already have them. I love toda cams but damn don't downgrade. 11.7 is minimal compression for those cams but they will still put out more power than the "A"'s. No need to waste money. Your set up is fine. If your going to spend another grand somewhere spend it on the header. I woulod ditch the pistons though. Not a fan of OE pistons in high compresion motors. Some wiesco or JE 12.5-1 would be nice. Good luck. but for the love of god keep the juns.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by asubennett »</TD></TR><TR><TD CLASS="quote">why ditich the Jun3's in favor of toda a's. Keep the JUN since you already have them. I love toda cams but damn don't downgrade. 11.7 is minimal compression for those cams but they will still put out more power than the "A"'s. No need to waste money. Your set up is fine. If your going to spend another grand somewhere spend it on the header. I woulod ditch the pistons though. Not a fan of OE pistons in high compresion motors. Some wiesco or JE 12.5-1 would be nice. Good luck. but for the love of god keep the juns. </TD></TR></TABLE>
With the correct combination, Toda As can make as much power as JUN 3s. JUNs, like alot of other high lift/duration camshaft rely heavily on high compression. Without compression they're not showing that much of a difference between Bs and even As. The point is, he wanted a reliable daily driver and that's what I think is a reliable daily driver. And by the way, I have OEM high compression pistons in my block. Runs smooth like butta.
With the correct combination, Toda As can make as much power as JUN 3s. JUNs, like alot of other high lift/duration camshaft rely heavily on high compression. Without compression they're not showing that much of a difference between Bs and even As. The point is, he wanted a reliable daily driver and that's what I think is a reliable daily driver. And by the way, I have OEM high compression pistons in my block. Runs smooth like butta.
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I am sure they do run smooth as "butter" but if your going to spend 350 for CTR or ITR psitons with rings and wrist pins, why not spend another 150 and buy something as nice as a forged JE piston and have the added relaibility of forged steel in case of a timing belt slip or came gear slip or injector foul up or fuel pump faliure, or any other misc. thing that could happen and cause a ping or detaonation that an OE piston doesnm't stand a chance against and a JE does. And he said that he wants to run 12.5-1 on the street. That compression is plenty for a JUN 3. It is not as big of a cam as you think. The primary lobes are actually not much bigger than an ITR cam if bigger at all. And JUN's have big duration which will help bleed some of the compresion off when he does utilize the VTEC lobe. Toda A's are a great cam, make great power but they don't have the same duration as a JUN 3, they have nice lift, but I think you would be more likely to run into detonation problems with hihg compresion and Toda a's than you would with high compresion and JUN 3's.
So again, if your going with 12.5-1, do yourself a favor an spend the money for forged pistons the first time, and use the 3's, it is guaranteed that you will a make power, and the duration will ease some of the detoantion issues by bleeding off cylinder pressure. See "dynamic compression". But yes the earlier post was right, OE pistons will be fine, never said they weren't but they are not as good and there is no arguing that. Jason
So again, if your going with 12.5-1, do yourself a favor an spend the money for forged pistons the first time, and use the 3's, it is guaranteed that you will a make power, and the duration will ease some of the detoantion issues by bleeding off cylinder pressure. See "dynamic compression". But yes the earlier post was right, OE pistons will be fine, never said they weren't but they are not as good and there is no arguing that. Jason
I paid less than $250 for CTR Pistons and Rings. The wrist pins come with the Pistons. Oversized too. He can spend less money with my setup and save money to buy him a nice Mugen Intake and SMSP Header with custom 2.5" Exhaust.
And still have the reliability stock engines are known for.
And still have the reliability stock engines are known for.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BillB »</TD></TR><TR><TD CLASS="quote">I have a B18c5 in the docks clearing customs from Japan (I'm in the UK BTW).
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Where did you buy it ?? Can you help me find a b16b ?? I am in Denmark
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Where did you buy it ?? Can you help me find a b16b ?? I am in Denmark
his motor already has jun3 cams in it so how would that be saving him money to ditch them in favor toda a's. I am not understanding the logic in getting rid of one great cam for another. Jun 3's will make more power than Toda A's from 11-1 compresion and on up. Proven time and time again. keep the juns buy forged pistons and you ahve spent $500. Buy Toda A's and CTR pistons for the gret price of %250 and you have spent $1050.
sure but again why? The jun's will make mor epower and you know it. I am a Toda guy to but the Jun's will make more power no doubt about it.
Toda A's can make the same power JUN 3s make. To me cams that big belong on a race car, not a street car. But what do I know, I only ride around town with VTKs.
Jun 3s rock Toda A'S....
Seriously....and the small primary of the Jun lets it Idle nicely without problems like a big primary toda.
Suprdave
Seriously....and the small primary of the Jun lets it Idle nicely without problems like a big primary toda.
Suprdave
well said. Jun three's have nearly stock primary lobes. So unless he is going to lock in the pins on his cams and rock vtec all day long JUN 3's are the way to go over toda a's if power is the only concern. A's do have their place though. I think it is a nice cam for a modded B16. ANyhow, I guess teh debate will never end.
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