uncledan

Had my car dynoed at Slowmotion Motorworks in Sunbury, Ohio, just north of Columbus.
My car is an 02 Acura RSX type-s, with a JRSC and 3.0 inch pulley. What makes my car unique is that it is the first to have a Mercracing water to air aftercooler mounted in the bottom of the JRSC manifold. The cooled charge air allows for more ignition under boost and the car made some very nice power.

Final numbers are 335 hp and 219 tq. This is up almost 50 hp and 30 ftlb tq from a tune I had done in July with a 3.4 inch pulley and no aftercooler. The solid line is the tune I was running when I got there from July, 09. The dotted line is the final tune. What is very exciting about these numbers is that the air temps in the manifold were lower at 11 psi aftercooled, than they were at 7.9 psi without aftercooler, making 11 psi safe to run. No more worries about heat.

The JRSC manifold for the type-s is also used on the 06-09 Civic Si, and TSX. There will also be an aftercooler for the Comptech SC for the type-s and Civi Si coming out soon.

Blue-Civic-Hybrid

iTrader: (1)

Any pictures of this aftercooler? Sound very interesting, maybe something like the LHT design?

uncledan

Yes, you can go here, but is isn't like the lht.

http://mercracing.net/

HiProfile

It's a definate improvement, but not by much. I'd imagine a laminova version would be more effective, with less pressure drop...but good luck trying to source their parts.

Since those motors spin the same way as an M90, why hasn't anyone adapted one yet?

awill4x4

A puny little stacked plate core like the one shown on their site will do basically nothing in reducing inlet temps. Note, there are no dyno figures showing real time air temps during a dyno run, that's an indicator of how poorly they really perform.
Regards Andrew from Oz.

uncledan

Please read this to see the data you are looking for. Also, please note that the tubing in/out of the core has been improved, larger, and is flowing considerably more coolant through the core than from when these numbers were recorded.

082409 Here is the data from today, no water in core or radiator. I disconnected the return from the core to the radiator to drain the core. Put a little water in the radiator to cover the sensor. Pump is turned off. My wife recorded the numbers while I drove.

Ambient air temps approximately 72-74.
3.4 inch pulley, 7psi

……………………intake………….water……….runner………..core…… ……ect
start……………….72……………….79…………….71
11:35a.m. ……….90……………….92…………….108………….100.6………..112 after about 10 minutes of idle/driving
11:45a.m. ……….98………………80……………..122………….110.5………..178.5 highway 55 mph
11:50a.m………..101……………..80……………..124………….112.8……….. 181.6 highway 55 mph
12:00p.m……….100……………..82………………126…………112.0………..180 .1 highway 65mph
12:10p.m……….108……………..82………………130…………118.1………..183 .2 city 25 mph
12:15p.m. ……..109…………….82……………….133…………119.6………..181.6 city 25 mph and stopped

2:00p.m…………..95………………88……………..136………….121.1………..15 6 start after sitting 1 hrs 45 minutes
2:45p.m…………..97………………81……………..123………….110.5………..17 8.5 start of wot after 10 minutes of highway 65 mph
2:48p.m………….99……………….81……………..130………….172.3………..18 0.1 end wot hit 7.9 psi SEE DATALOG

3:30p.m…………115………………84………………150…………128.3………..180 after sitting for about 20 minutes
3:40p.m…………114……………..85……………….139…………125.7………..181 .6 stop after 10 minutes city driving

There is a conversion factor for the gm temp sensor, please add about 11 degrees to the core temps only on the chart above. The chart below has corrected core temps

August 29,2009
Ambient 74 degrees
3.0 inch pulley
………………………………………………………………approx
………………………………………………………gm….correct
……………intake…..water…runner..…core…core…..ect
10:05am……74.………79.……..75.………64.9.…79.…..76.3 start
10:15am……87.………80.……..100.…….78,6.… 90.….177.0 idle
10:20am……97.………79.……..109.…….73.6.….84.….180.0 cruise
10:25am…..105.………86.……..117.…….82.4.….93.….181.6 a little wot
10:30am…..101.………80.……..113.…….77.8.….87.….183.0 shutdown

11:35am……98.………91.……..133.……116.6.…127.….147.1 start
11:55am…..101.………80.……..109.……..70.3.…..80.….178.5 before wot
11:55am……na………..na……….na…….122.6.…133..….177.0 after 2,3,4, gears 32 to 101mph
12:05pm…..105.………81.……..113.……..69.5.….80..….183.2 shutdown
12:10pm…..108.………84.……..124.…….74.8.…..85..….180.9 after quick 5 minute stop
12:20pm…..106.………84.……..104.…….72.5.…..84.….181.6 shutdown

10.3 psi
Injector duty 87%
a/f 11.51

You will note that I am running at least 50 degrees cooler on the 3 inch pulley and 11 psi, compared to the 3.4 inch pulley at 7 psi.

onefstek

Looks like nice gain. What header are you runing?

uncledan

I am running a Jackson Racing race header, with a high flow cat. 2.36 catback with Magnaflow round muffler for a resonator, and an 06 rsx muffler with a larger axle back pipe. Not the ultimate performance catback, but it is deep sounding and quiet.

jmercado567

Funny everyone talks about the laminova's but have yet to see someone take the time to make one for the JRSC. furthermore, they are way more expensive for nearly the same temp drops... why got thru the hassle and expense when it can be simple and affordable?

We have no pressure drop... merely and insignificant amount that can't even be properly recorded.
wherere did you get that from this kit? we still hit 11's and even peak at 12's when hitting the rev limiter at 8500...


Pressure drop was an issue with other designs including the original version. this has been rectified. The stated issues are outdated.

spoolin turbo s

how much boost is the m90 efficient up to?
how much power is the m90 efficient up to?

would a m90 fit under the hood? if so man a k24 with a k20 head with a m90 or m112 would have a powerband that would look something like what a stock terminator cobra powerband looks like

does any cars come stock with a m112?

what supercharger does the car in this post use? i found the airflow maps to all eaton superchargers so we could see how a bigger charger would compare to the one in the jrsc kit.

nice numbers im sure it feels like a good size v6 that can rev.
you may have mentioned it but do you have any head or cam work done?

spoolin turbo s

i found the answer to my own question the terminator cobra comes with a m112 stock and has been run at 22 psi on the cobra, not sure if its good for anymore boost than that or how long the charger lasted at 22 psi, i just know it has been done.

not sure if any other cars come with it stock, ill look into it. But since these superchargers can be had for cheap and can be used on k motors more people should bolt on some m90's or m112 and make big awesome powerbands for cheap

awill4x4

Well, I have quite a bit of experience with Laminova intercooling and I've never found anything to match them in removing boosted heat. In the graphs below there's one by a "respected" manufacturer showing their water to air performance which shows just how badly they really perform. Contrast this with the boost temps vs manifold temps of the Laminova cored i/coolers we've built. The last graph is of a turbo diesel with massive heat soak where the vehicle was thrashed prior to putting it on the dyno.
I've been involved with building intercoolers both air to air and water to air and I've never seen anything perform like Laminova's when compared on a size to size basis.
Regards Andrew from Oz.
ps: there's a couple of pics of some other Laminova'd projects we've got on the go at the moment.

HiProfile

Usually I bite my tongue when a "n00b" says something rediculous, they could have lurked around since 2001 for all I know.

However, you've really gone off the deep end. They don't use the word laminova, but it's what they use. Granted it's for the b-series JRSC's, but you weren't specific. I'm sure they'd be happy to try a k-series JRSC. AFAIK, they've been doing this for quite a while.

http://www.lhtperformance.net/Superc.../upgrades.html




BTW your data tells us almost nothing. You have to post IAT's during a dyno pull, not after city driving. Unless you're imitating a GTA game, you're not opening it up much in a city. Same for steady-speed freeway temps.

awill4x4

Well that's a different way of using the Laminova cores. They could potentially be even more efficient using some sort of system similar to ours where every molecule of air is forced to go around the cores via some kind of slotted support tube as recommended by Laminova themselves.
Another benefit of this the fact that each core is serviceable where simply unbolting the endplates allows for easy core removal and replacement.
Thanks for posting the link, it just shows there's more than one way to arrive at a solution.
Regards Andrew from Oz.

uncledan

Guess you missed the wot runs in the data.

jmercado567

Interesting setup and info. Don't get me wrong the laminovas are great...

but can you get an affordable laminova setup for under $450?

How much would it cost to have a laminova setup on the JRSC manifold?

Again, I am not being a pain. We just wanted to get you guys aware of a product that is allowing the JRSC guys a cooling option that actually nets great HP results, easily installed and very affordable by most.

Since, I did not expect this type of questioning I did not have any data to properly answer.

I will see about getting a picture of the datalog from the tuner and see if I can represent it someway that shows the iat as rpm increases.

Again. not trying to compete with anyones product. Just offering something affordable...

jmercado567

Here is an image plot from some of the testing:
Hope this helps see what you are looking for.

Let me know.

tmartin120

As I stated on the other board the data you are capturing is incorrect. The only good IAT sensor you are using is the open type GM sensor which is located right under the core which of course would read good numbers. The rest of the sensors you are using are slow closed type sensors in the runner which is to slow for the testing you are trying to do. You should get real test data before running around all these boards and advertising how good this core is. These guys on this board are to savy for you two to come in here and sell a ebay chinese made core.

jmercado567

Updated products and info.
As of 2013 things have evolved tremendously and with great results.
Thanks everyone for your wonderful support over the years.
Dont forget to check out the facebook page as well.

http://mercracing.net/products-page/jackson-racing-2/