Drivetrain GRS IC Removed... DFIC Installed (w/ some numbers)
5th Gear
Joined: Mar 2003
Posts: 716
Likes: 0
From: Cumming, GA
Originally Posted by TonyB
The temp coming home was 62 F, and the car, with my wife, hauled some butt and the red AutoMeter boost light came-on meaning that I hit/surpassed 15 psi. She wasn't particularly pleased though 
.
.I had no choice
but to floor it in the cooler weather to see what it was like now.Pam said, "Wow. You've got this thing really tuned to go fast, don't you?"
That was about as big of a compliment/complaint as I've heard from her.
And she rode in my 03 MCS (84k miles) which in some ways was much more modified.
I'm lovin' it.
FWIW - My previous MCS had the GRS, and other additional mods. However this one differs in although it has fewer mods, it does have the m7 head and dfic...
Originally Posted by TonyB
As mentioned in other threads, I think this one most recently (https://www.northamericanmotoring.co...eat+dispersant), I was going to attempt some limited data-logging on the DFIC. I was most interested to see how much boost I'd be losing, given what a couple NAMers have shared previously...
Before:
GRS IC, at 73-76 F, registered max boost of 15 lbs, per AutoMeter gauge which saves the peak. I did this last week, as noted here (https://www.northamericanmotoring.co...3&postcount=18).
After:
DFIC, at 75-78 F, after zeroing the peak on the gauge, also got exactly 15 lbs!
=====
So, compared to the GRS, there is no delta in max boost; which pleasantly surprised me. I also used my CarChip E/X to log data, and I'll next download that data to see what kind of IAT's I got before, and after. Given the power I felt coming-out of turns here in the canyon, and the tires breaking loose easier, I'm quite certain I'm getting a cooler charge, which one would expect...
I'll report back on some IAT's later...
Before:
GRS IC, at 73-76 F, registered max boost of 15 lbs, per AutoMeter gauge which saves the peak. I did this last week, as noted here (https://www.northamericanmotoring.co...3&postcount=18).
After:
DFIC, at 75-78 F, after zeroing the peak on the gauge, also got exactly 15 lbs!
=====
So, compared to the GRS, there is no delta in max boost; which pleasantly surprised me. I also used my CarChip E/X to log data, and I'll next download that data to see what kind of IAT's I got before, and after. Given the power I felt coming-out of turns here in the canyon, and the tires breaking loose easier, I'm quite certain I'm getting a cooler charge, which one would expect...
I'll report back on some IAT's later...
Banned
Joined: Jul 2004
Posts: 1,848
Likes: 1
From: City of Angels, Cali
Is there any chance you did a test with Extreme scoop + GRS intercooler? I would be curious to see how much the scoop improves on the GRS. THanks.
Edit: NM, found the answer, thanks guys.
Edit: NM, found the answer, thanks guys.
Thread Starter
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6th Gear
Joined: Apr 2003
Posts: 3,957
Likes: 2
From: a canyon, south Bay Area
Bart, I didn't lose any boost as compared to the GRS. Maybe compared to your IC (GTT?), you did indeed. I still have the stock boots. I did file-down the brackets a bit so I would get a little more bite, but I really don't think that was needed...
The CarChip E/X also captured boost (manifold pressure), and it too showed peak boost very comparable to the GRS.
camelpilot, glad you found the info on the GRS with Extreme Scoop. Welcome back!
The CarChip E/X also captured boost (manifold pressure), and it too showed peak boost very comparable to the GRS.
camelpilot, glad you found the info on the GRS with Extreme Scoop. Welcome back!
Originally Posted by TonyB
Bart, I didn't lose any boost as compared to the GRS. Maybe compared to your IC (GTT?), you did indeed.
I want my 1.5lbs back
Originally Posted by TonyB
Too bad you still didn't have the GTT for another check, at the same ambient temp. Hope all works-out for you!
However all of the data Matt has on the GTT, came from my car. Matt sent me his toys
. Once matt gets a DFIC to test he will be able to add the data to all of the other data he has which should provide a lot of meaningful discussiones.Bart
Well due to your testing and positive words of the DFIC over the GRS I called and ordered one yesterday.
I got it with the black heat disapating coating on it with some special coating on the bottom to reflect heat. Also since I hate waiting for stuff to be painted I am having M7 paint my scoop for me. They tell me to expect to wait 7days to 2 weeks (due to coating and painting time) for it to ship. I can't wait.
I got it with the black heat disapating coating on it with some special coating on the bottom to reflect heat. Also since I hate waiting for stuff to be painted I am having M7 paint my scoop for me. They tell me to expect to wait 7days to 2 weeks (due to coating and painting time) for it to ship. I can't wait.
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