FMIC finally done
06-25-08, 02:51 PM
#1
Rotary Enthusiast
Thread Starter
FMIC finally done
Using the car daily which I never thought I would do, but it's been running great.
Megasquirt V2.2 spark + fuel, Bosch 1600cc secondaries, Turbonetics 60-1, HKS racing bypass valve, TiAL external wastegate.
06-26-08, 11:58 AM
#6
Rotary Enthusiast
Thread Starter
Core Size: 24x11x3 inch
Overall Size: 29x11x3 inch
Inlet and outlet sizes: 2.5 inch
quick results from stock vs. this one:
Increased lag, had to increase boost about 2-3psi to get same higher RPMs boost pressures, but it's manageable just drivability is compromised a tiny bit with an aftermarket turbo like mine. MAT reading in megatune went down several degrees while idling, on boost is extremely steady and doesn't spike like before which is the main reason I got the intercooler.
I recommend to get a smaller core if using the car as a daily driver like I am, nothing beats the short track of the stock system although it barely cools the air in hot weather, and is freaking hot where I live.
Overall Size: 29x11x3 inch
Inlet and outlet sizes: 2.5 inch
quick results from stock vs. this one:
Increased lag, had to increase boost about 2-3psi to get same higher RPMs boost pressures, but it's manageable just drivability is compromised a tiny bit with an aftermarket turbo like mine. MAT reading in megatune went down several degrees while idling, on boost is extremely steady and doesn't spike like before which is the main reason I got the intercooler.
I recommend to get a smaller core if using the car as a daily driver like I am, nothing beats the short track of the stock system although it barely cools the air in hot weather, and is freaking hot where I live.
06-26-08, 12:03 PM
#7
Senior Member
Join Date: Jun 2004
Location: Houston
Posts: 655
Likes: 0
Received 0 Likes
on
0 Posts
Thanks, I think I'm back on the rotary wagon again....at one point I wasn't sure what I was going to do with my car. I keep looking to everyone on the forum for inspiration.
-B
-B
Trending Topics
06-27-08, 11:48 AM
#12
Rotary Enthusiast
Thread Starter
its still 50% untuned unfortunately so it's actually slower than a boosted stock combo in my opinion, I haven't raced or really stepped on it yet, maybe a couple of fly bys next to a couple of 4G63Ts, but nothing to brag about. I know my old 12a felt faster than this 
I was waiting on the intercooler setup to be installed to be able to tune it right. Now I have to wait for the Fan (taurus) as the CL temps went up. With the megasquirt logs I've been monitoring manifold air temp MAT and CL coolant temp for days and until I set those two in safe ranges I'm not going to tune the car for max power, right now is set pretty conservative.
I rebuilt this engine with a pretty agressive street port so I hope to get some decent numbers, I might have about 1500 or so bumper to bumper traffic miles on that engine. On a more serious note, I don't plan on racing the car nor dragging it, although Im temped. I actually want the car to last a long time.
BTW with megasquirt I managed to tune it to idle at 1000rpms with 550cc primaries and 1600cc in stage configuration very close to stock. The squirting info in this forum is excellent... and there is great help in that section, hopefully I'll be able to help others now.
I was waiting on the intercooler setup to be installed to be able to tune it right. Now I have to wait for the Fan (taurus) as the CL temps went up. With the megasquirt logs I've been monitoring manifold air temp MAT and CL coolant temp for days and until I set those two in safe ranges I'm not going to tune the car for max power, right now is set pretty conservative.
I rebuilt this engine with a pretty agressive street port so I hope to get some decent numbers, I might have about 1500 or so bumper to bumper traffic miles on that engine. On a more serious note, I don't plan on racing the car nor dragging it, although Im temped. I actually want the car to last a long time.
BTW with megasquirt I managed to tune it to idle at 1000rpms with 550cc primaries and 1600cc in stage configuration very close to stock. The squirting info in this forum is excellent... and there is great help in that section, hopefully I'll be able to help others now.
06-27-08, 12:44 PM
#16
Semper
iTrader: (3)
Join Date: Feb 2006
Location: Alabama
Posts: 1,354
Likes: 0
Received 0 Likes
on
0 Posts
you wana buy a daily driver?http://www.autotrader.com/fyc/vdp.js...6000&cardist=0
congrats on the setup. it looks badass.
congrats on the setup. it looks badass.
06-27-08, 01:30 PM
#17
Rotary Enthusiast
Thread Starter
I agree 100%... too big, let me see how it goes after I tune it, my turbo has plenty of flow, but not sure if it will be enough. If I have to sell it for a smaller core I'll do it. I want the car to run good, not look good.
06-27-08, 02:00 PM
#18
Resident COFFEE expert!!
Join Date: Jun 2008
Location: The land of make believe
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Whats up man. We are NOT taking that bumper back off.
We'll get 'er straightened out Saturday we'll see what she can do.
BTW, I had to re-register, considering I signed up about a million years ago, I do not have my old email anymore & lost my password.
We'll get 'er straightened out Saturday we'll see what she can do.
BTW, I had to re-register, considering I signed up about a million years ago, I do not have my old email anymore & lost my password.
06-27-08, 06:54 PM
#21
Rotary Enthusiast
Thread Starter
glad to see you here Espresso... welcome to the forum.
remember its a old bastard S4 series block (although it's nicely built by me) so it's weak, bolt ons can be great, but the engine itself can only take so much, Im telling u I would have rather left it with the stock turbo, "kick it up a notch" like Emeril would say and be done with it.
BTW the old owner had that turbo so I had to build around it, fuel, ign control, all the goodies so as to be somewhat safe.
remember its a old bastard S4 series block (although it's nicely built by me) so it's weak, bolt ons can be great, but the engine itself can only take so much, Im telling u I would have rather left it with the stock turbo, "kick it up a notch" like Emeril would say and be done with it.
BTW the old owner had that turbo so I had to build around it, fuel, ign control, all the goodies so as to be somewhat safe.
Last edited by mperformance; 06-27-08 at 07:06 PM. Reason: .
06-28-08, 06:49 AM
#25
Rotorhead
Join Date: Feb 2001
Location: Charlottesville, Virginia, USA
Posts: 9,136
Likes: 0
Received 39 Likes
on
33 Posts
The increased lag is due to two factors:
1. The larger volume (as you have already figured out)
2. The extra spool time required for the turbo to make up that extra 2-3psi.
The air will take the path of least resistance. Once pressure builds up at the bottom of the core, more air will flow through the rest of the core. Besides, you can construct the end tanks with baffles if you are really concerned about the air getting through the entire height of the core. A taller core has more internal flow area, which will reduce pressure drop. A larger core also contributes to cold sink, which helps reduce the spikes as mentioned by mperformance.