"Free Mods" L98 Question
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,413
Likes: 138
From: Texas
"Free Mods" L98 Question
Well I have to replace my clutch disc this weekend and while it's up on jack stands I figured I'd do some mods...
1. Gutted main cat
2. Removed frisbee
3. TB Bypass
4. Removed smog pump
What will I gain?
1. Gutted main cat
2. Removed frisbee
3. TB Bypass
4. Removed smog pump
What will I gain?
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: "Free Mods" L98 Question (ZF Six)
Ok, here's a SWAG:
1. Gutted main cat - maybe 5chp
2. Removed frisbee - 10chp
3. TB Bypass - 0
4. Removed smog pump - 5chp (realy a guess here)
How about gutting those two pre-cats in the front Y, though I'm not sure how much this would gain. I did my front Y, cat & cat-cack at once so don't rely know the individual gains, but the sum realy adds up.
1. Gutted main cat - maybe 5chp
2. Removed frisbee - 10chp
3. TB Bypass - 0
4. Removed smog pump - 5chp (realy a guess here)
How about gutting those two pre-cats in the front Y, though I'm not sure how much this would gain. I did my front Y, cat & cat-cack at once so don't rely know the individual gains, but the sum realy adds up.
Instructor
Joined: Nov 2002
Posts: 159
Likes: 0
From: Lusby MD
Re: "Free Mods" L98 Question (65Z01)
I agree with replacing front y-pipe and pre-cats. Did mine and it definitely felt like there was some gain. Also gas mileage improved greatly. (3-4 mpg avg).
good luck
:seeya
good luck
:seeya
Safety Car
Joined: Jun 2000
Posts: 4,870
Likes: 25
From: Long Island, NY
Re: "Free Mods" L98 Question (ZF Six)
Well I have to replace my clutch disc this weekend and while it's up on jack stands I figured I'd do some mods...
1. Gutted main cat
2. Removed frisbee
3. TB Bypass
4. Removed smog pump
What will I gain?
1. Gutted main cat
2. Removed frisbee
3. TB Bypass
4. Removed smog pump
What will I gain?
Vic
Drifting
Joined: Apr 2000
Posts: 1,879
Likes: 1
From: Lockport, IL Let's get em ALL home soon!
Re: "Free Mods" L98 Question (ZF Six)
1. Gutted main cat - 5HP
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
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Melting Slicks
Joined: Sep 2003
Posts: 2,775
Likes: 0
From: 1,000,000,001 Posts
Re: "Free Mods" L98 Question (Vetterin)
1. Gutted main cat - 5HP
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
Drifting
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Re: "Free Mods" L98 Question (Vetterin)
1. Gutted main cat - 5HP
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
2. Removed frisbee - 7HP
3. TB Bypass - 0HP
4. Removed smog pump - 2HP
5. Knowing you did it yourself - PRICELESS!!!!
:hurray:
You will gain some parts to put in a box in your garage, and probably lose about 15 lbs.
I would say max HP at the crank 10, which is not noticeable, you will however rev up a slight bit faster without the Air Pump and frisbee, and the gutted cat will make it sound like you gained 100 hp.
FYI- I did every single free mod on this forum and gained .3-.4 seconds from a 14.1 bone stock, thats not bad, but its the next .5 that will be harder!
Dont expect a whole lot from the freebees, just enjoy doing them, and it will set you up for Stage 2!!!!
