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Old 11-08-2012, 04:24 PM   #1 (permalink)
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supercharger aftercooler chat thread

I thought i would start this thread for the aftercooled guys. Merc or IMT... there is a lot of threads with a bunch of good info on them...so post up your build pics and finished products here.... questions,tips, tricks, chat and flame welcome

By: JDM_DOHC_SiR


Stock Si Crank Pulley 13810-RRB-A01
5.46 / 3.60 x 8500 = 12891
5.46 / 3.40 x 8500 = 13650
5.46 / 3.30 x 8500 = 14063
5.46 / 3.20 x 8500 = 14503
5.46 / 3.15 x 8500 = 14733
5.46 / 3.00 x 8500 = 15470 *Aftercooler recomended
5.46 / 2.80 x 8500 = 16575 *Aftercooler needed
5.46 / 2.60 x 8500 = 17850 *Aftercooler+Blower porting needed/ possible belt slip


CR-V Crank Pulley 13810-RRA-A02
5.98 / 3.60 x 8500 = 14119
5.98 / 3.40 x 8500 = 14950
5.98 / 3.30 x 8500 = 15403 *Aftercooler recomended
5.98 / 3.20 x 8500 = 15884 *Aftercooler needed
5.98 / 3.15 x 8500 = 16136 *Aftercooler needed
5.98 / 3.00 x 8500 = 16943 *Aftercooler+Blower porting needed
5.98 / 2.80 x 8500 = 18153 *Aftercooler+Blower porting needed
5.98 / 2.60 x 8500 = 19550 *Aftercooler+Blower porting needed/ possible belt slip and blower bearing issues..


2012 Si Crank Pulley 13810-R40-A02
6.37 / 3.60 x 8500 = 15040
6.37 / 3.40 x 8500 = 15925 *Aftercooler needed
6.37 / 3.30 x 8500 = 16407 *Aftercooler needed
6.37 / 3.20 x 8500 = 16920 *Aftercooler+Blower porting needed
6.37 / 3.15 x 8500 = 17188 *Aftercooler+Blower porting needed
6.37 / 3.00 x 8500 = 18048 *Aftercooler+Blower porting needed
6.37 / 2.80 x 8500 = 19337 *Aftercooler+Blower porting needed/ possible blower bearing issues..
6.37 / 2.60 x 8500 = 20825 *Aftercooler+Blower porting needed/ possible belt slip and blower bearing issues.

Last edited by mercurysunshine; 11-25-2012 at 03:40 PM.
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Old 11-08-2012, 07:37 PM   #2 (permalink)
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Im interested to see more details about everyone's setups and things encountered during installs. Im trying to figure out what to do with my car so this would all be helpful.
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Old 11-08-2012, 07:38 PM   #3 (permalink)
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On a side note in this thread will someone please post up some pictures of the merc aftercooler for a jrsc and possibly dimensions on it?
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Old 11-08-2012, 08:54 PM   #4 (permalink)
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man it depends what aftercooler you are doing.. there are a few variations of Merc's aftercooler i have a few pics of when i first got it...

Last edited by mercurysunshine; 11-13-2012 at 10:38 PM.
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Old 11-08-2012, 08:59 PM   #5 (permalink)
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This is when i first received the kit



a few on the car pics.... current state



This is the "stage 2" merc aftercooler core...i think i paid extra for the cutout on the bottom of the core and the cutout for the starter... i dont know if he chrages for this anymore



i also ordered the Johnson Pump.. which is an upgrade also...and i beieive the heat exchanger is one of Merc's biggest also

Had my blower inlet and housing ported by Posi Perfromance before the initial install... Posi did a lot of work with the supercharged Mustangs and had great success..but he is semi- retired from porting and just runs a machine shop


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Old 11-08-2012, 09:09 PM   #6 (permalink)
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Nice thats exactly what I wanted.
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Old 11-08-2012, 09:09 PM   #7 (permalink)
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on a side note Jose Mercado (Mercracing's) work is spot on and fit and finish is right...any wait i had which was a substantial one was totally refuted by the quality of their products...Their customer support for my installation questions has been swift and informative.... Looking forward to seeing the future products from Merc Racing..
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Old 11-09-2012, 11:02 AM   #8 (permalink)
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what johnson pump did you get?

they are actually only like 15-20 mins away from me
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Old 11-09-2012, 11:15 AM   #9 (permalink)
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Quote:
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what johnson pump did you get?

they are actually only like 15-20 mins away from me
i got the black one.... dunno really.. ill look this afternoon
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Old 11-09-2012, 09:55 PM   #10 (permalink)
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It's most likely the Johnson CM-30 Pump
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Old 11-09-2012, 10:30 PM   #11 (permalink)
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good thread. still piecing mine together
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Old 11-10-2012, 12:36 AM   #12 (permalink)
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My core looks a bit different than others?

Last edited by Honda_guy58; 11-10-2012 at 01:25 AM.
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Old 11-10-2012, 01:04 AM   #13 (permalink)
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your core has an extra piece welded on top probably to fill the gap between the manifold and the core to make all the air go thru the core.. and on mine i paid extra to have the bottom plate of the core CNC'd out for extra airspace... that should be the only difference

you can see in the pic i posted of the core in the manifold up on top of the core. there is an airgap between the two...yours is a bit better actually

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Old 11-10-2012, 05:52 AM   #14 (permalink)
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Hi guys

I have a CT-e w/ a 3.15 pulley atm.

Few questions..

1) Any performance diff between IMT vs Jose's AC (IIRCC jose's wait is longer right vs imt's 8 week wait)

2) What is the difference between the stage 1/2 IMT AC (Obviously stg2 cools more, but I mean is like stage 1 for the 3" pulley then stage 2 is for the 2.8" and smaller or how does it work)

3) If I were to add an AC to my SC right now, would I see an instant gain in power or would I only see power by upgrading to a 3" pulley? If so what are the average gains.


Thanks for helping a n00blet like me
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Old 11-10-2012, 01:56 PM   #15 (permalink)
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Quote:
Originally Posted by mercurysunshine View Post
your core has an extra piece welded on top probably to fill the gap between the manifold and the core to make all the air go thru the core.. and on mine i paid extra to have the bottom plate of the core CNC'd out for extra airspace... that should be the only difference

you can see in the pic i posted of the core in the manifold up on top of the core. there is an airgap between the two...yours is a bit better actually
Why is mine the only one i've seen with that extra bracket welded on?
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Old 11-10-2012, 02:03 PM   #16 (permalink)
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Does that bigger Heat exchanger make a big difference? Would it be worth upgrading from the normal one?
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Old 11-10-2012, 02:15 PM   #17 (permalink)
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sub'd. thanks for starting this thread
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Old 11-10-2012, 03:32 PM   #18 (permalink)
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Quote:
Originally Posted by Honda_guy58 View Post
Why is mine the only one i've seen with that extra bracket welded on?
I dunno, but i like it

Quote:
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Does that bigger Heat exchanger make a big difference? Would it be worth upgrading from the normal one?
i dont have any contrasting number on it.. but the more Hex the better.. you can cool down more coolant at once to put back thru the system...having said that a bigger, more efficient pump would be a good idea also
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Old 11-10-2012, 03:57 PM   #19 (permalink)
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Now you got me thinking about upgrading to the johnson pump as well
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Old 11-10-2012, 04:08 PM   #20 (permalink)
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im pretty sure bullidog was running the johnson pump before he went to the ts blower.... im pretty sure that he is still running it... and we all know the HP he was putting down
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