A3 is gone! Going K24A1 + JRSC + Cams ETC Questions

[neoamd]

Well my K20A3 is dead and I'm going to have a K24A1 swapped in. Whats the smallest pulley I can run on the JRSC for boost? I was going to swap the accord crank pulley on my A3 since I'm running the 3.8' pulley to up the boost. I'm not sure if the K24A1 changes things, pardon my ignorance.

My current mods are:

JRSC
3.8" Pulley
440cc Injectors
Injen 3" CAI
KRRH/CRSX RH
Custom 3" Exhaust
K-Pro
Innovative Motor Mounts (All 4)
CC Stage 4 w/Lightweight Flywheel

When the K24A1 is swapped in I will be reusing most of the above and adding:

Rebuilt/Ported JRSC from Stiegemeier
Ported Throttle Body
Crower Stage 2 Cams
AIS Methanol Kit w/11GPH nozzle
650cc Injectors
And if money allows a 6spd trans w/ LSD

What pulley setup should I run to get ~11-12lbs of boost out the M62? I'm looking to crack 300whp. What should the rev limit be? Should I grab a set of supertech valve springs + retainers? Should I add a Hybrid Racing Chain Tensioner? Will the KRRH/CRSX RH fit fine with the K24A1?

What sucks about this whole deal was the day before the motor went I was working out buying a complete rear 03 Cobra IRS for my FD!!! Guess she'll have to wait!

Thanks to those that offer advice!

[sleepy ep3]

It never hurts to have an updated valvetrain. I would DEFINITLY upgrade the springs, especially if you plan on doing a little racing. The hybrid tct is a good idea since you are going with cams, but I heard that hybrid has had some issues with the pins that hold the ratchet mechanism in place. Do some research.

[neoamd]

It never hurts to have an updated valvetrain. I would DEFINITLY upgrade the springs, especially if you plan on doing a little racing. The hybrid tct is a good idea since you are going with cams, but I heard that hybrid has had some issues with the pins that hold the ratchet mechanism in place. Do some research.

Sounds like I'll grab new valve springs and retainers. What TCT would you recommend then? I know the Skunk 2 has issues as well.. Should the stock hold up fine? I've done research but it always half saying it's good and the other half saying it has issues. Gotta love the internet.

Will I be fine with the stock Oil Pump?

[superchargedk20]

wat happened to ur a3?

[neoamd]

wat happened to ur a3?

Went from 4th @ 4.5k rpm to 3rd. :facepalm:

Thats what I get for drinking... whatever though at least its given me a good reason to try and break 300whp, haha

[vicx52o]

The KRRH/CRSX will be good. You'll need to run an EM2 front sway or no front sway to run it though.

[04EP3Hatch]

Well my K20A3 is dead and I'm going to have a K24A1 swapped in. Whats the smallest pulley I can run on the JRSC for boost? I was going to swap the accord crank pulley on my A3 since I'm running the 3.8' pulley to up the boost. I'm not sure if the K24A1 changes things, pardon my ignorance.

My current mods are:

JRSC
3.8" Pulley
440cc Injectors
Injen 3" CAI
KRRH/CRSX RH
Custom 3" Exhaust
K-Pro
Innovative Motor Mounts (All 4)
CC Stage 4 w/Lightweight Flywheel

When the K24A1 is swapped in I will be reusing most of the above and adding:

Rebuilt/Ported JRSC from Stiegemeier
Ported Throttle Body
Crower Stage 2 Cams
AIS Methanol Kit w/11GPH nozzle
650cc Injectors
And if money allows a 6spd trans w/ LSD

What pulley setup should I run to get ~11-12lbs of boost out the M62? I'm looking to crack 300whp. What should the rev limit be? Should I grab a set of supertech valve springs + retainers? Should I add a Hybrid Racing Chain Tensioner? Will the KRRH/CRSX RH fit fine with the K24A1?

What sucks about this whole deal was the day before the motor went I was working out buying a complete rear 03 Cobra IRS for my FD!!! Guess she'll have to wait!

Thanks to those that offer advice!

alright on the A1 your best bet would be to use the accord pulley with the 3.8 you have, youll be sitting in the 10psi-11psi range depending on cam angles during tuning. as for cams i would personally go with the a2 cams in your setup (ivtec killer) with supertech single springs, you can use oem spring bases and retainers so it keeps cost down and the more oem means less chance for issue's, and because the oem cams (even vtec love) dont have the aggressive ramp that the aftermarkets do so thats less chain and tct stresses. and when you get the blower back i want pics :) ive seen stiegmeir's work first hand and i give thumbs up, no other way about it. and if you run the 14gph meth nozzle you actually dont need to up to 650's, my duty cycle warrants me going with my next setup whenever i make up my mind with it :( 300whp is easily in reach, im hoping to attain that with my a3 which i will do, but if you want to stick with aftermarket cams i;d suggest skunk2 stage 2's. theyre more aggressive with the fasramp technology so they cram more compressed air into each cylinder which will equal less boost on the gauge, but a higher graph on the dyno plot if you catch my drift (i have a brand new in box set for sale cheaper than skunk2's garage sale if your intersted). the other problem with that motor would be rev limit. that motor has such a long stroke its almost a good idea to keep it to 7500 just to be safe, thats just me though. good luck man keep us posted!

[neoamd]

alright on the A1 your best bet would be to use the accord pulley with the 3.8 you have, youll be sitting in the 10psi-11psi range depending on cam angles during tuning. as for cams i would personally go with the a2 cams in your setup (ivtec killer) with supertech single springs, you can use oem spring bases and retainers so it keeps cost down and the more oem means less chance for issue's, and because the oem cams (even vtec love) dont have the aggressive ramp that the aftermarkets do so thats less chain and tct stresses. and when you get the blower back i want pics :) ive seen stiegmeir's work first hand and i give thumbs up, no other way about it. that motor has such a long stroke its almost a good idea to keep it to 7500 just to be safe, thats just me though. good luck man keep us posted!

Good to know. I'll just buy the Skeletor K24 crank pulley and have it swapped out. Why no 3.7 pulley love =P

I'm not really a fan of the vtec killer setup. If I went that route I would just buy a K20A2 head. I've read a lot on the BC Stg 2's vs the Skunk2 Stg 2's and the BCs seem like the safer bet. I'm going to get some SuperTech single valve springs w/ retainers to match with the BC cams I have. With this whole swap going on I don't really have the cash to spare to buy another set of cams just to try them out. Also I'm going to grab a set of 650cc injectors just to be safe since I'll have it tuned out without the meth and then with. Better safe than sorry in my book!

You should install those cams man!! Do it and make more power than my car will with a A1, I would RAGE, hahaha.

Reason for the money issue is that I'm going to try and squeeze in a Z3 tranny in the swap so I can have an LSD and sweet 6th gear! I'm hoping with all my current mods + SC porting, TB porting, Cams, Meth, Skeletor Crank Pulley, and MAYBE a 3.7 pulley I can break 300whp. If I can make it out with a 6 spd with a diff I'll be in heaven. Hell if the car doesn't put down the power I'm hoping for I have a N20 kit sitting here with a 35 and 50 shot jets ready to go!!! I kid on the N20, haha maybe :ninja:

[04EP3Hatch]

Good to know. I'll just buy the Skeletor K24 crank pulley and have it swapped out. Why no 3.7 pulley love =P

I'm not really a fan of the vtec killer setup. If I went that route I would just buy a K20A2 head. I've read a lot on the BC Stg 2's vs the Skunk2 Stg 2's and the BCs seem like the safer bet. I'm going to get some SuperTech single valve springs w/ retainers to match with the BC cams I have. With this whole swap going on I don't really have the cash to spare to buy another set of cams just to try them out. Also I'm going to grab a set of 650cc injectors just to be safe since I'll have it tuned out without the meth and then with. Better safe than sorry in my book!

You should install those cams man!! Do it and make more power than my car will with a A1, I would RAGE, hahaha.

Reason for the money issue is that I'm going to try and squeeze in a Z3 tranny in the swap so I can have an LSD and sweet 6th gear! I'm hoping with all my current mods + SC porting, TB porting, Cams, Meth, Skeletor Crank Pulley, and MAYBE a 3.7 pulley I can break 300whp. If I can make it out with a 6 spd with a diff I'll be in heaven. Hell if the car doesn't put down the power I'm hoping for I have a N20 kit sitting here with a 35 and 50 shot jets ready to go!!! I kid on the N20, haha maybe :ninja:

i forget where i heard it but the 3.7 added to the mix will only cause slippage issues, yes i know the larger CP is more surface area the the BP is slightly less, but the CP is trying to spin all the accessorys faster than average so that will easily cause some slippin, as for the tranny dude id suggest sticking your 5 speed and getting the 6speed conversion from CRSX (6th gear is only for fuel mileage), with the A1's available torque and the much lower redline than your stock Z3, you'd be shifting a hell of a lot more. if you get a six speed than at least get a taller fin al drive to leave you in each gear a little longer to make use of all your power.

[neoamd]

i forget where i heard it but the 3.7 added to the mix will only cause slippage issues, yes i know the larger CP is more surface area the the BP is slightly less, but the CP is trying to spin all the accessorys faster than average so that will easily cause some slippin, as for the tranny dude id suggest sticking your 5 speed and getting the 6speed conversion from CRSX (6th gear is only for fuel mileage), with the A1's available torque and the much lower redline than your stock Z3, you'd be shifting a hell of a lot more. if you get a six speed than at least get a taller fin al drive to leave you in each gear a little longer to make use of all your power.

Good point, didn't realize it was that big of a difference. I'm just really looking for a nice gas saving 6th without sacrificing to much. My worst case option would just be to get a Type S trans and have an LSD installed because of ease unless someone has a EP3 trans for sale. I'm tired of being @ 4k at ~78mph. My tire size is 215/40/17.

Maybe the EP3 trans with a TSX 6th, OEM LSD, and stock final drive would be best. This car is my daily driver and I'm just after the power for fun. My RX-7 is alot more tolerable on the highway since I can ride at 100mph @ 2600rpm. I miss the torque and the gearing.............

[04EP3Hatch]

yea the tsx 6th and oem lsd would be a very nice trans setup in the car you plan on bulding, i really hate the 5th gear rpms in my car too lol

[05 hatch]

That's sick man! Love what you're doin! Can't wait to see the end results!

[neoamd]

That's sick man! Love what you're doin! Can't wait to see the end results!

Have all the parts but the K24A1 short block! I'm looking for one if any one has one for sale!!

Build will be:

K20A2 Head
K24A1 SB
09 TSX Internals
OEM Head gasket
APR Head studs
EP3 JRSC (Rebuilt and Ported by Stiegemeier)
Maxbore TB
Custom CAI
AIS Methanol Kit (14GPH nozzle)
CRSX RH
Custom 3 inch Exhaust
650cc Injectors
Hondata 4 Bar MAP
08/09 K24 Crank Pulley
3.0 or 3.2 S/C Pulley
and something else I don't remember..

Reason for sticking with the EP3 blower is time based. Dont have the time to sell it, buy another, then have the RSX one ported/rebuilt! When the car goes back together I want to be sure the motor and S/C will be there to stay for a long time so I can focus on my slut of an FD.

Am I correct in the CP + 3.0/3.2 pulley for this motor setup? I'd search around but I'm trying to find a short block right now. I'm looking to run ~12psi. I will be running the new larger K24 CP.

Also since I'm going to run the 09 TSX internals with the pistons @ 11.1:1 compression what will the final comp be when the A2 head is on it? Should I go for <09 TSX pistons which are 10.5:1 instead? I want to be as close to 11.0:1 as possible. Why? Cause I can and I'll have a ton of meth going in it. Gotta break 300whp or I'll just break down mentally.

Think thats all. I'll post pictures of everything when I can. I'm going to send Maxbore the TB soon and Stiegemeier the blower around the same time as well. Would have been sooner but a bachelor party (I was best man) drained my funds pretty well.

THANKS everyone. Hope to throw up some vids of it when its done vs my brothers EK (all motor fully built B18 - ran 13.30)

PS I may change my mind and just sell the EP3 JRSC and buy a RSX setup if the motor continues as it has. LSX stuff I soooo easy to find.

[05 hatch]

Your setup is gonna be the ish! Can't wait to see it all done and in action! Im ordering my skeletor cp today for my a3 jrsc, and im pumped. I can't imagine how you feel. Lol. Good luck with the build.

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[neoamd]

Your setup is gonna be the ish! Can't wait to see it all done and in action! Im ordering my skeletor cp today for my a3 jrsc, and im pumped. I can't imagine how you feel. Lol. Good luck with the build.

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I feel good but my wallet has a terminal disease now. I only meant to spend HALF of what I'm spending now BUT the result will be a lot of fun. I'll post pics of all the parts when the car is loaded on the trailer and towed to where all the magic will happen, haha. I've got to install/mount a good bit of things before I take it to the shop.

Maybe once it runs I'll post a video of what it's like with whatever power it makes on an open diff stock trans

The trans will be started once it runs again and depending on turn around time @ crsx the car will run around diff less for less than 6 weeks.