A-trim?

VeNuM · 08-23-2003, 02:28 PM

Has the Vortech A-Trim been replaced by the SC-Trim? I was looking at them and the Novi 1000's the other day and noticed there was no A-trim but the SC-trim is advertised to put out 5-6lbs. Anybody know?

Stang_Crazy · 08-23-2003, 03:02 PM

Yes. the SC-trim replaces the A trim. It's just quieter that's all.

VeNuM · 08-23-2003, 04:54 PM

Damn, I wanted my blower to howl

~Brian

Stang_Crazy · 08-23-2003, 06:23 PM

My Novi has helical cut gears (as opposed to straight cut on the old Vortech's) and it's not THAT quiet. Slightly audible but nothing too loud. I haven't heard a clip of the SC-Trim yet so I can't comment on how quiet or loud it is.

You could always look into a used A-Trim if you want the old style that badly.

BTW: How do you like the sound of the Magnaflows? I was thinking about switching from Dynomax to Magnaflow but it's still up in the air.

VeNuM · 08-24-2003, 11:05 AM

Sounds good, I'd like my blower to be heard and I'm not that worried about going to heli-cut gears. If possible I might be looking at a SQ-trim too, it's all up in the air. On another note, I LOVE the sound of my Magnaflows. The car had Flowmasters on it when I bought it, and I thought I liked it, I got these for $350 shipped to by door, and I will tell you, I'm never going back to Flowmasters. Magnaflows are supposed to sound very similar to Borla but nobody around here has Borla on a 5.0 so I can't make the comparision myself, If I were you I'd definately go with them though. ~Brian

USMC302 · 08-27-2003, 10:49 AM

I had the A-trim on our 95 and recently sent it back to Vortech for a rebuild, which he said they could do over the phone. Once it arrived there, he told me the impeller was bad and needed replacement and they didn't carry or sell that replacement anymore, I would have to upgrade to the S-trim. So I did and agree with you about the discontinuation of the A-trim.

ponyexpress289 · 09-22-2003, 11:44 PM

damn discontinued , my a trim makes alota noise peeps were telling me thats the impeller was bad i guess it sux to be me

USMC302 · 09-23-2003, 08:06 AM

The upgrade and rebuild is right under $950.00 I believe.

Blk91stang · 10-15-2003, 02:32 PM

ok the Sc-trim is not just a quieter version of the a-trim. Its actually a more efficient compressor and will make more power than the A-trim. Its basically a s-trim impeller cut down to produce lower boost. Straight cut gears are used hence its a V-1 not a V-2 so it is plenty loud. Right at idle i can hear it a block and all my friends say it sounds like a jet plane is coming down the street. With the 2.89 pulley it quieted down some at idle. i have had no problems and i made 272.4hp and 314ft lbs of tourqe to the wheels with the stock pulleys, stock mass air meter, stock injectors, with just a gss340 pump for insurance. My tuner also claimed he saw 4lbs of boost at top rpm. the pulley and 73 c&l gave me about 5-6psi (belt slip?) with a 13.1 @ 106 timeslip. Your call!

mustangdaren · 11-10-2003, 02:02 AM

The sc-trim is capable of making the same hp as the s-trim with a pulley change. It actually has a higher max impeller speed than the s-trim and is more efficient. You can check out the numbers on Vortech's website on the performance matrix. My sc-trim makes 4.5-5psi on a hot day and around 6 on a cool day with the stock pulleys. It is available with the V1 or V2 gearbox. I chose the V1 cause I like the noise. You can check out a video clip of mine at www.xtrememustangs.com in the video section.

08-23-2003, 02:28 PM	#1
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	A-trim? Has the Vortech A-Trim been replaced by the SC-Trim? I was looking at them and the Novi 1000's the other day and noticed there was no A-trim but the SC-trim is advertised to put out 5-6lbs. Anybody know? __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

08-23-2003, 03:02 PM	#2
Stang_Crazy It's never clean enough! Join Date: Jan 1999 Location: Shaler, PA Posts: 1,542	Yes. the SC-trim replaces the A trim. It's just quieter that's all. __________________ ~Dan 2001 SVT Lightning 89' GT : Taking up garage space and waiting for a buyer... Rice Hater's Club - Member #11

08-23-2003, 04:54 PM	#3
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	Damn, I wanted my blower to howl ~Brian __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

08-23-2003, 06:23 PM	#4
Stang_Crazy It's never clean enough! Join Date: Jan 1999 Location: Shaler, PA Posts: 1,542	My Novi has helical cut gears (as opposed to straight cut on the old Vortech's) and it's not THAT quiet. Slightly audible but nothing too loud. I haven't heard a clip of the SC-Trim yet so I can't comment on how quiet or loud it is. You could always look into a used A-Trim if you want the old style that badly. BTW: How do you like the sound of the Magnaflows? I was thinking about switching from Dynomax to Magnaflow but it's still up in the air. __________________ ~Dan 2001 SVT Lightning 89' GT : Taking up garage space and waiting for a buyer... Rice Hater's Club - Member #11

08-24-2003, 11:05 AM	#5
VeNuM Registered Member Join Date: Apr 2002 Location: Downers Grove, IL Posts: 464	Sounds good, I'd like my blower to be heard and I'm not that worried about going to heli-cut gears. If possible I might be looking at a SQ-trim too, it's all up in the air. On another note, I LOVE the sound of my Magnaflows. The car had Flowmasters on it when I bought it, and I thought I liked it, I got these for $350 shipped to by door, and I will tell you, I'm never going back to Flowmasters. Magnaflows are supposed to sound very similar to Borla but nobody around here has Borla on a 5.0 so I can't make the comparision myself, If I were you I'd definately go with them though. ~Brian __________________ 1989 Black Mustang GT Hatchback, Underdrive Pulles, Electric Fan, Cold Air Intake, Headers, Offroad H-Pipe, Magnaflow catback, Steeda Tri-Ax, Fluidyne Aluminum Radiator, Timing at 14*, 3.73's Coming not so soon: 408w Ricer Hater's Club Member #59

08-27-2003, 10:49 AM	#6
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	I had the A-trim on our 95 and recently sent it back to Vortech for a rebuild, which he said they could do over the phone. Once it arrived there, he told me the impeller was bad and needed replacement and they didn't carry or sell that replacement anymore, I would have to upgrade to the S-trim. So I did and agree with you about the discontinuation of the A-trim. __________________

09-22-2003, 11:44 PM	#7
ponyexpress289 Registered Member Join Date: Apr 2002 Location: rowlett Posts: 136	a trim damn discontinued , my a trim makes alota noise peeps were telling me thats the impeller was bad i guess it sux to be me __________________ er OK YAY! i Drive A 86gT with An aTrim!!!! HAHAHAHAHA

09-23-2003, 08:06 AM	#8
USMC302 Registered Member Join Date: Apr 2001 Location: Gallatin, Tn Posts: 1,326	The upgrade and rebuild is right under $950.00 I believe. __________________

10-15-2003, 02:32 PM	#9
Blk91stang Registered Member Join Date: Oct 2003 Location: Union County, Jersey Posts: 1	ok the Sc-trim is not just a quieter version of the a-trim. Its actually a more efficient compressor and will make more power than the A-trim. Its basically a s-trim impeller cut down to produce lower boost. Straight cut gears are used hence its a V-1 not a V-2 so it is plenty loud. Right at idle i can hear it a block and all my friends say it sounds like a jet plane is coming down the street. With the 2.89 pulley it quieted down some at idle. i have had no problems and i made 272.4hp and 314ft lbs of tourqe to the wheels with the stock pulleys, stock mass air meter, stock injectors, with just a gss340 pump for insurance. My tuner also claimed he saw 4lbs of boost at top rpm. the pulley and 73 c&l gave me about 5-6psi (belt slip?) with a 13.1 @ 106 timeslip. Your call! __________________ 91 blk/blk Gt, Sc-Trim w/ 2.89" pulley. Full exhaust dumped with flows, hurst comp plus, k/b subs, lowered by eibach, 73 c&l. All stock motor. Tuned by Larocca's Performace 272hp 314ft lb with stock pulleys and maf. 13.1 @ 106

11-10-2003, 02:02 AM	#10
mustangdaren Registered Member Join Date: Apr 2002 Location: Hickory Posts: 20	The sc-trim is capable of making the same hp as the s-trim with a pulley change. It actually has a higher max impeller speed than the s-trim and is more efficient. You can check out the numbers on Vortech's website on the performance matrix. My sc-trim makes 4.5-5psi on a hot day and around 6 on a cool day with the stock pulleys. It is available with the V1 or V2 gearbox. I chose the V1 cause I like the noise. You can check out a video clip of mine at www.xtrememustangs.com in the video section.

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