OT-Trucks with Borlas
Thread Starter
Team Owner
Joined: Aug 1999
Posts: 30,995
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From: Ontario
OT-Trucks with Borlas
My Borlas have gone to a new home and no regrets. But yesterday we had a GMC Sierra in for an oil change. It was a beauty and I say that as a person who has never owned a truck in my life. Had a Vortec 8.1 liter engine (454cid) and took appropriately a PF454 AC Delco filter ;) . GM engineers must have worked on that for a long time....
In any case the stock cat cons were in place but behind was a Borla cat-back system. Dual-inlet-outlet SS muffler with twin SS pipes and tips out the back. Really quite something! And not noisy. It just rumbled confidently. I revved it a few times to "check the oil pressure gauge" before it went for a differential service and it was very impressive.
I see few 8.1L engines so this was a joy when combined with the Borla exhaust. Those GMCs are pretty trucks.
In any case the stock cat cons were in place but behind was a Borla cat-back system. Dual-inlet-outlet SS muffler with twin SS pipes and tips out the back. Really quite something! And not noisy. It just rumbled confidently. I revved it a few times to "check the oil pressure gauge" before it went for a differential service and it was very impressive.
I see few 8.1L engines so this was a joy when combined with the Borla exhaust. Those GMCs are pretty trucks.
Race Director
Joined: Jan 2000
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From: San Jose CA
Re: OT-Trucks with Borlas (paul79)
Paul, j'espere que vous savoir le 8.1 litres est quatre-cent quatre-vingt seize <<inches>>...
Are you starting to feel a little regret about not going with the borlas?
I think you're doing a good thing by going with the spintechs. If they do turn out well, I may consider them in the future.
My friend has a Suburban w/ 8.1L motor. He says pulling his boat felt like his old SBC Suburban without a boat attached. We are desparate to put Gibsons or the like on that!
-Steve
Are you starting to feel a little regret about not going with the borlas?
I think you're doing a good thing by going with the spintechs. If they do turn out well, I may consider them in the future.
My friend has a Suburban w/ 8.1L motor. He says pulling his boat felt like his old SBC Suburban without a boat attached. We are desparate to put Gibsons or the like on that!
-Steve
Thread Starter
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Re: OT-Trucks with Borlas (Pacin'California)
Steve,
I have no regrets re the Borlas. I love to experiment. Wait for April when I see my Corvette again ;) . Then you will see pics....And yes, that GMC 8.1L is pretty impressive. I just drove it for five minutes and it spun the rear tires when I hit the gas. I do not abuse customers' vehicles but there is so much low-end torque. (Of course my normal daily transfer outside is a Sunfire....) I guess this is what the BB 427/454 fellows speak of constantly.
I have no regrets re the Borlas. I love to experiment. Wait for April when I see my Corvette again ;) . Then you will see pics....And yes, that GMC 8.1L is pretty impressive. I just drove it for five minutes and it spun the rear tires when I hit the gas. I do not abuse customers' vehicles but there is so much low-end torque. (Of course my normal daily transfer outside is a Sunfire....) I guess this is what the BB 427/454 fellows speak of constantly.
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Joined: Jun 2001
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From: The Only Corvette in Gila Bend, Az.
St. Jude Donor '09
Re: OT-Trucks with Borlas (Simon Alexander)
Yeah Paul is thinking that he shouldn't have sold me his Borla's. I get that same rumble that he heard, with just a nice growl at WOT...
I will have to go try out that 8.1. :cheers:
I will have to go try out that 8.1. :cheers:
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Re: OT-Trucks with Borlas (Desertdawg)
Hey DD- get a vid of your car running down the street. Make sure you go past 5k. :) I want to hear those borlas in action. I'll probably get a vid of my vette one of these days.
-Steve
-Steve
Race Director
Joined: Jun 2001
Posts: 16,483
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From: The Only Corvette in Gila Bend, Az.
St. Jude Donor '09
Re: OT-Trucks with Borlas (Pacin'California)
I will get with Bseery to see if we can get a vid of it up on the internet. I will let you know as soon as we figure it out...
Thread Starter
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Re: OT-Trucks with Borlas (Simon Alexander)
Simon,
You are correct:
litres x 61= cubic inches
cubic inches x 0.0164 = litres
There is some rounding involved but 8.1 litres or 495cid is close.
You are correct:
litres x 61= cubic inches
cubic inches x 0.0164 = litres
There is some rounding involved but 8.1 litres or 495cid is close.
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Melting Slicks
Joined: Apr 2002
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From: Tucson AZ
Race Director
Joined: Aug 2002
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From: not far enough from Chicago
Re: OT-Trucks with Borlas (Robert N)
Thread Starter
Team Owner
Joined: Aug 1999
Posts: 30,995
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From: Ontario
Re: OT-Trucks with Borlas (SBSB)
I have not been over to O/T for over a year. It did not make sense then and has gone downhill from there apparently. Some people have too much time on their hands.
Race Director
Joined: Aug 2002
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From: not far enough from Chicago
Re: OT-Trucks with Borlas (paul79)
I have not been over to O/T for over a year. It did not make sense then and has gone downhill from there apparently. Some people have too much time on their hands.
It is exactly what it says it is......Off Topic.....Topics that pertain to other ideas than CORVETTES! I know that there are a lot of weird things there, but that is the idea. :cheers:
Melting Slicks
Joined: Oct 2002
Posts: 2,106
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Re: OT-Trucks with Borlas (paul79)
Simon,
You are correct:
litres x 61= cubic inches
cubic inches x 0.0164 = litres
There is some rounding involved but 8.1 litres or 495cid is close.
You are correct:
litres x 61= cubic inches
cubic inches x 0.0164 = litres
There is some rounding involved but 8.1 litres or 495cid is close.
Cu x 16.41 = mL
mL / 16.41 = mL
i derived it by playing with 5700(5.7L) and 350