2004 6.0 NV4500 Tahoe

[Dantheman1540]

I’ve been thinking about what intake and TB I can upgrade to on my ‘03 5.3 Flex. The TBSS and NNBS are the same? Didn’t realize I’d have to get a x-link harness. That makes the idea a lot less appealing. [emoji53]

From my research yes the NNBS and TBSS are the same but I'm not a pro on the subject. I do know that an Xlink is required for any throttle body that is 6 pin being installed on a truck that was originally 8 pin.

I don't know how much power is really gained as I never did a NBS and 78mm TB swap to a TBSS with 90mm for back to back testing. However every article I've seen praises the TBSS combo.

 

[Rocket Man]

The NBS 6.0 and 5.3 TB are 80 mm and good to about 500 HP and a 90mm isn’t going to do a thing for a NA engine. Even with my blower I don’t need a bigger TB, with a smaller pulley I ran out of injectors( again) but not TB.

 

[Dantheman1540]

The NBS 6.0 and 5.3 TB are 80 mm and good to about 500 HP and a 90mm isn’t going to do a thing for a NA engine. Even with my blower I don’t need a bigger TB, with a smaller pulley I ran out of injectors( again) but not TB.

I agree the 90mm is overkill for an NA motor. Only put it in because I had it and wanted to solve the reduced engine power BS that the 87mm was causing (I think). But one could argue "why did gm put a 90mm on the vette if it wasn't going to make more power?".

I do believe that a bigger TB makes a difference on boosted applications! I assume it would let the blower suck air easier and likely increase boost. May not be noticable at low boost levels or even with a butt dyno but every bit helps. It may also have a minor effect on IAT which are always a struggle with hot air intakes.

But again the gains are probably not financially worth it. That's exactly why I don't have a giant 102mm or whatever the big one out now is. Also my experience with the LS2 is pure 100% reliability even at 19psi.

 

[Sam Harris]

The NBS 6.0 and 5.3 TB are 80 mm and good to about 500 HP and a 90mm isn’t going to do a thing for a NA engine. Even with my blower I don’t need a bigger TB, with a smaller pulley I ran out of injectors( again) but not TB.

Good to know. Thanks Mark. [emoji106]

ETA: was that flex injectors?

 

[Rocket Man]

Good to know. Thanks Mark. [emoji106]

ETA: was that flex injectors?

Yes 8.1 L flex injectors. 50 lb/ hr.

 

[Dantheman1540]

Did some pulls on my way to work today and as expected I see absolutely no change on the AFR gauge or in the butt dyno. I remember reading somewhere that the TBSS/NNBS intakes are designed for optimum flow with the 87mm. Can't find the article though pretty sure it was a Richarld Holdner article.

 

[Dantheman1540]

I'm sad to announce the death of a 10 year friend. Haven't done an autopsy yet but I'm assuming COVID-19 got him. Was driving across town pushing 75-80 with music playing pretty loud and of course the bass knob turned up. Suddenly the deep clear lows turned to some terrible flapping noise and I knew he was dead.

Turns out 10 years of abuse is about the life expectancy of a JLW3-V2. I've no joke had it since 2010/2011 and had it in at least 9 vehicles many of which it just rolled around the trunk due to not being strapped in. There no visible damage but when I push the cone in I can hear a bad noise.

Heres some inside pics of the custom box.

 

[Rocket Man]

I'm sad to announce the death of a 10 year friend. Haven't done an autopsy yet but I'm assuming COVID-19 got him. Was driving across town pushing 75-80 with music playing pretty loud and of course the bass knob turned up. Suddenly the deep clear lows turned to some terrible flapping noise and I knew he was dead.

Turns out 10 years of abuse is about the life expectancy of a JLW3-V2. I've no joke had it since 2010/2011 and had it in at least 9 vehicles many of which it just rolled around the trunk due to not being strapped in. There no visible damage but when I push the cone in I can hear a bad noise.

Heres some inside pics of the custom box.

View attachment 251093 View attachment 251094 View attachment 251095

RIP

 

[Dantheman1540]

New one is on the way. I wanted to upgrade to a W6 but that's more than double the price and I'd rather put that money into my silverado motor.

 

[rgosart]

I'm sad to announce the death of a 10 year friend. Haven't done an autopsy yet but I'm assuming COVID-19 got him. Was driving across town pushing 75-80 with music playing pretty loud and of course the bass knob turned up. Suddenly the deep clear lows turned to some terrible flapping noise and I knew he was dead.

Turns out 10 years of abuse is about the life expectancy of a JLW3-V2. I've no joke had it since 2010/2011 and had it in at least 9 vehicles many of which it just rolled around the trunk due to not being strapped in. There no visible damage but when I push the cone in I can hear a bad noise.

Heres some inside pics of the custom box.

View attachment 251093 View attachment 251094 View attachment 251095

10 years is not bad at all! I have had my 10W3V3 for 6 years and I bought a 12W3 for the Tahoe in 2019. Never had any issues with my JL stuff.

The Tahoe needs a set of components up front. It has been on the list, but not a real high priority because I have some decent 6.5" Rockfords.

 

[Dantheman1540]

Yep can't complain a bit, Its seen and played in temps ranging from -30* to 108* and possibly more. Hopefully I get another 10 years out of the new one! I'm really anxious to see if the new one hits harder.

I actually just gave away the original JX250 amp i originally bought with the dead 12".

 

[rgosart]

Yep can't complain a bit, Its seen and played in temps ranging from -30* to 108* and possibly more. Hopefully I get another 10 years out of the new one! I'm really anxious to see if the new one hits harder.

I actually just gave away the original JX250 amp i originally bought with the dead 12".

What amp are you using now?

 

[Dantheman1540]

What amp are you using now?

JL RD900/5 runs the components as well.

 

[rgosart]

JL RD900/5 runs the components as well.

Nice! I never could bring myself to fork over the money for a JL amp. My Saturn (commuter/got me through college) has a Kenwood Excelon X500-1 and an X301-4 and the Tahoe has the 5 channel version. It is an X801-5.

 

[Dantheman1540]

Nice! I never could bring myself to fork over the money for a JL amp. My Saturn (commuter/got me through college) has a Kenwood Excelon X500-1 and an X301-4 and the Tahoe has the 5 channel version. It is an X801-5.

It was painful and one of the main reasons I only got 1 "do it all amp" instead of 2 dedicated amps. Totally worth it though! That old and now deceased 12W3 felt like a new beast with the JL RD power. I had it on the JX250 for a few years then multiple other craigslist amps promising more power but never seemed to be much better and usually overheated after an hour or so of playing. Then finally got a JD500 for a few years and that went to a Slim W3 in my Silverado so it was time.

 

[Dantheman1540]

New W3 came in and got it installed. Didn't realize subs needed to break in before they hit hard. I was kinda pissed it didn't hit hard at first but about a hour of break in and it sounds great.

 

[Tonyrodz]

New W3 came in and got it installed. Didn't realize subs needed to break in before they hit hard. I was kinda pissed it didn't hit hard at first but about a hour of break in and it sounds great. View attachment 251332

How do you break a sub in?

 

[Dantheman1540]

My buddy said to play it at about half volume for an hour or so.

Quick Google search says half volume for 2 weeks and never exceed half. Well I already broke that rule so oh well. The first song I put on it seemed really weak and then after the trip to Home Depot and back at half volume it seemed stronger. So maybe I didn't do it the proper way but it seems as good or better than the last one which i know I never "broke in".

 

[iamdub]

You wanna gradually stretch the surround and spider, but mainly the surround. It's rubber that has been in one position since being made. Ever got a new rubber band out the bag and immediately stretched it too far, too fast and it snapped? So you grab another and stretch it a little at a time and you can feel it limber up. After that, it stretches to that length much more easily. Same effect with the sub's surround. Hot weather helps the break-in go much quicker.

When I break in a new sub, I leave it in my shop, either free-air or in an oversized vented box if available, and play test tones on repeat from an Autosound 2000 disc I copied to my shop PC. I start at nearly mid-bass notes and gradually drop the frequencies, playing each one for about five minutes until I get into the lower bass frequencies, then I play them a little longer.

 

[Rocket Man]

You wanna gradually stretch the surround and spider, but mainly the surround. It's rubber that has been in one position since being made. Ever got a new rubber band out the bag and immediately stretched it too far, too fast and it snapped? So you grab another and stretch it a little at a time and you can feel it limber up. After that, it stretches to that length much more easily. Same effect with the sub's surround. Hot weather helps the break-in go much quicker.

When I break in a new sub, I leave it in my shop, either free-air or in an oversized vented box if available, and play test tones on repeat from an Autosound 2000 disc I copied to my shop PC. I start at nearly mid-bass notes and gradually drop the frequencies, playing each one for about five minutes until I get into the lower bass frequencies, then I play them a little longer.

Geek.