dfw

**Dominic Toretto** · 07-23-2013, 04:28 PM

Read through the posts here. No one has specified what diameter tubing they are going with for such gains. Are we talking about 1 3/4s or 1 7/8s?

-Alex

**Midnight11** · 07-23-2013, 05:01 PM

1 7/8 or bust

**Rebelracer568** · 07-23-2013, 09:30 PM

1 7/8" on my car

**Dark Pony** · 07-23-2013, 09:52 PM

Actually 1 7/8 are overkill on these cars. Keep in mind, they are only 302's...I do have 1 7/8 on min, but only because I got such a good deal on mine. I'm only $500 invested in LT's with my install included. 1 3/4 would be perfectly fine on these cars. As far as it "being worth it"...that's all relative. Boss IM's do nothing for these cars. They shift the power and up higher n the RPMs and force you to spin the motor upwards of 7800 RPMs to see max gains out of it. I saw 13 HP and lost 22 ft lbs of Tq. I know I gained HP and Tq with my LT's, so IMO LT's were a great investment. These two mods are the most highly debated mods and people are always going to differ in opinions. All it takes is money...

**Dominic Toretto** · 07-24-2013, 08:11 AM

Originally Posted by Dark Pony

Actually 1 7/8 are overkill on these cars.

That's what I was thinking. That's why I wanted to pose the question.

-Alex

**BLK2012GT** · 07-26-2013, 12:28 AM

Originally Posted by Dark Pony

Actually 1 7/8 are overkill on these cars. Keep in mind, they are only 302's...I do have 1 7/8 on min, but only because I got such a good deal on mine. I'm only $500 invested in LT's with my install included. 1 3/4 would be perfectly fine on these cars. As far as it "being worth it"...that's all relative. Boss IM's do nothing for these cars. They shift the power and up higher n the RPMs and force you to spin the motor upwards of 7800 RPMs to see max gains out of it. I saw 13 HP and lost 22 ft lbs of Tq. I know I gained HP and Tq with my LT's, so IMO LT's were a great investment. These two mods are the most highly debated mods and people are always going to differ in opinions. All it takes is money...

I picked up more tq and hp when I switched from bbk 1 5/8 to American racing 1 7/8.

**Dark Pony** · 07-26-2013, 06:15 PM

Originally Posted by BLK2012GT

I picked up more tq and hp when I switched from bbk 1 5/8 to American racing 1 7/8.

With the same setup as before? Just a header swap? How much HP and TQ? It couldn't have been much.

**Midnight11** · 07-24-2013, 10:12 AM

i really dont see how its an overkill but to each his own...

JOHNGT · 07-25-2013, 10:29 AM

I have 1 5/8 American racing headers btw

**Doug1227** · 07-25-2013, 12:20 PM

^ You mean the same diameter as we all used to run on 250 HP Foxes 10 years ago?

**5PointSlow** · 07-26-2013, 09:08 AM

I run the 1 7/8 SWs. Beside the O2 sensor issues (solved by relocating courtesy of true street. ) well worth the money.

**JDMLOL** · 07-26-2013, 06:21 PM

Originally Posted by 5PointSlow

I run the 1 7/8 SWs. Beside the O2 sensor issues (solved by relocating courtesy of true street. ) well worth the money.

Was that because the front sensors were reading off of only one primary tube? My jbas are the same and im wondering if I need to relocate them to the collector.

**Toby** · 07-26-2013, 10:06 PM

Originally Posted by JDMLOL

Was that because the front sensors were reading off of only one primary tube? My jbas are the same and im wondering if I need to relocate them to the collector.

no his were aimed to where water would collect in the sensor and kill it.

IMO putting the oxygen sensor in a primary tube is the dumbest idea i have seen. Not only does it restrict flow on that cylinder, it does not give an accurate reading back to the computer.

**JDMLOL** · 07-26-2013, 10:20 PM

Originally Posted by Toby

no his were aimed to where water would collect in the sensor and kill it.

IMO putting the oxygen sensor in a primary tube is the dumbest idea i have seen. Not only does it restrict flow on that cylinder, it does not give an accurate reading back to the computer.

Im considering throwing extensions on and moving them. I guess I'd need a custom tune though. Im like you, idk why they did that either because it doesnt get a reading from the other cylinders so if they have issues it wouldn't throw a MIL.

**Dark Pony** · 07-27-2013, 09:36 AM

Originally Posted by JDMLOL

Im considering throwing extensions on and moving them. I guess I'd need a custom tune though. Im like you, idk why they did that either because it doesnt get a reading from the other cylinders so if they have issues it wouldn't throw a MIL.

I have an extra one if you need it