S2000 Forced Induction S2000 Turbocharging and S2000 supercharging, for that extra kick.

Aftercooler vs Intercooler for S/C setup

Thread Tools
 
Old Oct 23, 2009 | 01:17 PM
  #21  
S20004ME_PDX's Avatar
Registered User
Member (Premium)
 
Joined: Mar 2003
Posts: 1,898
Likes: 0
From: PDX
Default

Originally Posted by s2000Junky,Oct 23 2009, 01:10 PM

And yes for those that took a plunge on getting an inexpensive less reliable kit without the AC, then I might want to get a cheaper fmic fix right away too. water injection would be better, but thats not going to fix the overheated intake temps at idle and partial throttle which is where you spend most the time on the street. I would never run an SC kit without some form of cooling. All the old Comptech guys years ago learned that lesson.
You nailed it.

This was my thoughts on why I decided not to do any sort of water/meth injection at this time.

I want something that will let my car run consistent for both partial and full throttle. My primary use for the car right now is doing canyon runs with our local car group, these runs are all day drives with maybe 2 or 3 breaks in between, and since I'm not always full throttling on these runs, water would not help me.

I also agree with you on the point of power loss being greater on the FMIC setup, however, I've seen in the past with a few guys on s2ki with custom FMIC setup and they lost maybe 1 psi at the most, which to me isn't too bad considering the trade off in my situation where my car would start out at 350+hp but after my IAT get to a certain temperature, my car would drop down to 340 or maybe even 330, versus a FMIC setup, say my car would make 340 max, but the 340 will last me much longer because its able to keep the IAT more consistent.

I've had my doubts before on FMIC vs AC for our SC setup, but after seeing how each car dyno'd at the same day same temp, I'm really considering changing out my AC for a FMIC setup now.
Reply
Old Oct 23, 2009 | 01:20 PM
  #22  
S20004ME_PDX's Avatar
Registered User
Member (Premium)
 
Joined: Mar 2003
Posts: 1,898
Likes: 0
From: PDX
Default

Originally Posted by Ultimate Racing,Oct 22 2009, 11:42 AM
Ooh a blatant copy. Gotta love those. They even copied our description line by line!

Darryl
Hi Darryl,

From the picture, the parts does look exactly the same. However, I was told through PM that the other kit requires the SC unit to be clocked in order to install the FMIC. I belief the UR FMIC kit does not need to clock the SC unit. Is this correct?

Again, I agree with you, the 2 kit's piping looks almost exactly the same.

Thanks.
Reply
Old Oct 23, 2009 | 01:25 PM
  #23  
itlynstalyn's Avatar
Registered User
 
Joined: Aug 2007
Posts: 1,300
Likes: 0
Default

Originally Posted by s2000Junky,Oct 23 2009, 12:10 PM
Sure you could do that if you never plan on making more then 9-10 psi. That might sound great to someone that is running a base 5psi kit, but soon feel disappointing when they realize this is all they are going to make with the highest boost pulley made. The point I was making was that the typical SC kit max is making 13-15 psi before over spinning. So retaining that boost pressure is key if you want to make the most power available. Putting an fmic in the way will cause more pressure loss then it can make up in cooling. On average a AC kit with a 3.2" pulley making 12psi will make more power then an fmic kit with the same pulley netting 9psi for example.

And yes for those that took a plunge on getting an inexpensive less reliable kit without the AC, then I might want to get a cheaper fmic fix right away too. water injection would be better, but thats not going to fix the overheated intake temps at idle and partial throttle which is where you spend most the time on the street. I would never run an SC kit without some form of cooling. All the old Comptech guys years ago learned that lesson.
I've seen cars with a FMIC only lose .5-1lb of boost at the most in some cases. The higher the boost on the car it seems the boost loss is more negligible.

Having no form of cooling wasn't a problem for me on my car. I was running a AP2 pulley making almost 8lbs of boost and pushing 300rwhp and 200rwtq. Did it suffer heat soak at times? Sure. But it was still definitely safe enough for me running it as my daily driver.
Reply
Old Oct 23, 2009 | 06:28 PM
  #24  
Jano's Avatar
Thread Starter
Registered User
 
Joined: Apr 2005
Posts: 549
Likes: 0
From: Naples, FL
Default

Originally Posted by itlynstalyn,Oct 23 2009, 04:25 PM
I've seen cars with a FMIC only lose .5-1lb of boost at the most in some cases. The higher the boost on the car it seems the boost loss is more negligible.
That's my biggest concern. Maybe my blower is an underachiever, but when I was running the stock pulley, I was lucky to get just a bit over 5lbs out of what was supposed to be a 6lb system with the only the one gentle bend in the 24" from the blower to the intake passing over the small radiator in the a/c.

The contorted path of the fmic reversing directions 180 degrees after the blower, down, over and up through what would has to be what, 5' of pipe? and bends/clamps/couplers all over.....I have a hard time believing boost loss is only going to be .5-1lb.

I like the idea of simplifying the system with less to break and no moving parts, and if I didn't already have a working a/c I might consider the UR setup. But I just can't see $1000 to swap from one to another without some more conclusive evidence. I'd probably be better off listening to Sideways and sourcing a larger radiator or seeing if SOS is up for putting their cooler "on sale"!!


Reply
Old Oct 23, 2009 | 09:05 PM
  #25  
bagherra's Avatar
Registered User
 
Joined: Sep 2008
Posts: 459
Likes: 2
Default

Just to add in regards to the SoS heat exchanger. I upgraded mine recently and my IATs went down considerably (less by 10 degrees). I was tuned and dynoed at the same shop both times (initial vs. upgraded) so I had a point of reference. It made a big difference for reducing heat soak on my S. Definitely worth it.
Reply
Old Oct 25, 2009 | 08:22 PM
  #26  
s2000Junky's Avatar
Community Organizer
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jun 2007
Posts: 31,070
Likes: 566
Default

Just fyi, you can pick up a water/meth injection kit for $300-400 and lower your intake and combustion temp as much as 100 degrees wile injecting depending on your boost level and injection amount.
Reply
Old Oct 26, 2009 | 12:53 PM
  #27  
itlynstalyn's Avatar
Registered User
 
Joined: Aug 2007
Posts: 1,300
Likes: 0
Default

Originally Posted by Jano,Oct 23 2009, 06:28 PM
That's my biggest concern. Maybe my blower is an underachiever, but when I was running the stock pulley, I was lucky to get just a bit over 5lbs out of what was supposed to be a 6lb system with the only the one gentle bend in the 24" from the blower to the intake passing over the small radiator in the a/c.

The contorted path of the fmic reversing directions 180 degrees after the blower, down, over and up through what would has to be what, 5' of pipe? and bends/clamps/couplers all over.....I have a hard time believing boost loss is only going to be .5-1lb.

I like the idea of simplifying the system with less to break and no moving parts, and if I didn't already have a working a/c I might consider the UR setup. But I just can't see $1000 to swap from one to another without some more conclusive evidence. I'd probably be better off listening to Sideways and sourcing a larger radiator or seeing if SOS is up for putting their cooler "on sale"!!
I believe UR used to state that with their system boost loss was .5lbs-1lb in some of their tests. I'm sure Darryl would be the one to answer that issue the best.

The system the site vendor is selling isn't $1k. If you sold your aftercooler on the boards, I think you may even end up breaking even if you got the FMIC.

I heavily debated this when I still had my s/c and I think I may have even kept it had the other vendor's kit come out already. I did however end up piecing together my own upgraded Greddy kit so it's a moot point. I am, however, very curious to see someone do testing with the new kit being offered. It could in fact be promising.
Reply
Old Oct 26, 2009 | 05:09 PM
  #28  
Moddiction's Avatar
Former Sponsor
 
Joined: Oct 2007
Posts: 28,698
Likes: 38
From: Mooresville, NC
Default

Originally Posted by Ultimate Racing,Oct 22 2009, 02:42 PM
Ooh a blatant copy. Gotta love those. They even copied our description line by line!

Darryl
Damn. Isn't that copyright infringement or something?
Reply
Old Oct 27, 2009 | 07:59 AM
  #29  
s2000Junky's Avatar
Community Organizer
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jun 2007
Posts: 31,070
Likes: 566
Default

There are application variables with these fmic's it seems. I know on a Comptech SC s2000 average psi loss with the ultm racing fmic is 3-4psi, this seems to be a fact. My buddy is spinning a 3.8"sos pulley which is rated at 9psi just to get 5psi/280whp, so he is losing 4psi. After a new bov and blower rebuild nothing has changed, still losing 4psi. You can do a search on s2ki and see much the same results with other members, ive come across several of these threads so my buddy isn’t an isolated case.

Some other fmic's may be slightly less loss, I would imagine a smaller one would yield less loss and possibly the higher boost the ratio of loss lessons, but this is only speculation from me.

It is Just 1/2 psi loss with AC, I can vouch for this.
Reply
Old Oct 27, 2009 | 08:11 AM
  #30  
S20004ME_PDX's Avatar
Registered User
Member (Premium)
 
Joined: Mar 2003
Posts: 1,898
Likes: 0
From: PDX
Default

I think if you did a custom FMIC setup where you 'clock' your SC unit which will allow you to run minimum piping. The end result from what I read is between 1 to 2 psi drop in boost.

I sent a PM to the company that was posted in the OP, and was told that with their kit, you do need to 'clock' the SC. So I'm not sure if they are indeed copying the UR kit or not.

But the pictures sure look a like though.
Reply



All times are GMT -8. The time now is 09:15 PM.