With the switch from 78mm TB to 90mm?
Thread Starter
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
With the switch from 78mm TB to 90mm? Me and my tuner just don't see it as being worth it to get a X link to throw a 90mm TB on my 3/4 ton. I have not found anything saying it will make a worth while difference. The truck is a work horse that turns 65-6600 on a playful day. It is heavy so it is not something I race. If it was a car I build for a customer I would have a different opinion looking for more power. But this simply is a 6.0 with a hotcam and headers with a NNBS intake.
The truck ran well with the stock intake and injectors to 6000 but after a recent rebuild I installed the 36lb injectors and NNBS intake, turned it up to 6600 and it feels better mid and top end of course.
I'm just thinking a 5-7HP gain isn't worth messing with. Unless someone has some proof it would pick up much more, I'm thinking I'm done with the truck and will just keep it as is.
The truck ran well with the stock intake and injectors to 6000 but after a recent rebuild I installed the 36lb injectors and NNBS intake, turned it up to 6600 and it feels better mid and top end of course.
I'm just thinking a 5-7HP gain isn't worth messing with. Unless someone has some proof it would pick up much more, I'm thinking I'm done with the truck and will just keep it as is.
Me and my tuner just don't see it as being worth it to get a X link to throw a 90mm TB on my 3/4 ton. I have not found anything saying it will make a worth while difference. The truck is a work horse that turns 65-6600 on a playful day. It is heavy so it is not something I race. If it was a car I build for a customer I would have a different opinion looking for more power. But this simply is a 6.0 with a hotcam and headers with a NNBS intake.
The truck ran well with the stock intake and injectors to 6000 but after a recent rebuild I installed the 36lb injectors and NNBS intake, turned it up to 6600 and it feels better mid and top end of course.
I'm just thinking a 5-7HP gain isn't worth messing with. Unless someone has some proof it would pick up much more, I'm thinking I'm done with the truck and will just keep it as is.
The truck ran well with the stock intake and injectors to 6000 but after a recent rebuild I installed the 36lb injectors and NNBS intake, turned it up to 6600 and it feels better mid and top end of course.
I'm just thinking a 5-7HP gain isn't worth messing with. Unless someone has some proof it would pick up much more, I'm thinking I'm done with the truck and will just keep it as is.
I thought the NNBS intake was only better than the stock truck intake due to the larger TB opening? If thats the case then the larger TB will make a difference... I wouldn't think more than 10HP tho.
Personally the cost vs $ ratio isn't high enough. My 5.3 stock 78mm TB is doing just fine with 12psi through it lol.
Personally the cost vs $ ratio isn't high enough. My 5.3 stock 78mm TB is doing just fine with 12psi through it lol.
[QUOTE=customblackbird;19463202]I thought the NNBS intake was only better than the stock truck intake due to the larger TB opening? If thats the case then the larger TB will make a difference... I wouldn't think more than 10HP tho.
Personally the cost vs $ ratio isn't high enough. My 5.3 stock 78mm TB is doing just fine with 12psi through it lol.[/QUOTE
The NNBS intake is more than just 90 mm snout, while they have some similarities with the old truck intake it is a improved design. It produces a power increase , and only the FAST intakes will produce more tq . Looking at just the TQ side the NNBS out outperforms most all, even the MSD airforce. Only the FAST 102s beat it at peak , it rivals the FAST from 4600- 5600 rpm then the FAST spikes up slightly and does carry out longer before dropping off.
Personally the cost vs $ ratio isn't high enough. My 5.3 stock 78mm TB is doing just fine with 12psi through it lol.[/QUOTE
The NNBS intake is more than just 90 mm snout, while they have some similarities with the old truck intake it is a improved design. It produces a power increase , and only the FAST intakes will produce more tq . Looking at just the TQ side the NNBS out outperforms most all, even the MSD airforce. Only the FAST 102s beat it at peak , it rivals the FAST from 4600- 5600 rpm then the FAST spikes up slightly and does carry out longer before dropping off.
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Surprisingly the majority of people think it will make a difference while I also don't think it will impact it that much. However even to prove to myself what the truth is in my case at least, in spring I'm going to dyno my lq4 setup fully tuned with a 78 mm stock tb (and nnbs intake) and then with a 90 mm tb. I only use one dyno in my area so that variable is out of the picture.
Sorry the bump this up from the dead but I’m in this exact same situation. 2500hd lq4. I found a killer deal on the TSP stage 2 (212/218) low lift cam on Craigslist and then a full speed engineering exhaust on marketplace. While doing this I’m not opposed to the TBSS intake. I really dont want to mess with or pay for the xlink and then new 87 or 90mm tb.
it’s now 7 years later lol anyone have any real info or dyno numbers on the tbss i take with adapted stock 78mm throttle body???
i find it hard to believe a mild set up maxes out a stock 78mm opening.
it’s now 7 years later lol anyone have any real info or dyno numbers on the tbss i take with adapted stock 78mm throttle body???
i find it hard to believe a mild set up maxes out a stock 78mm opening.
TECH Fanatic
Joined: Jul 2022
Posts: 1,032
Likes: 389
From: Alaska
Oh, I just can't wait for the love a thread resurrection gets around here!
You will REALLY like that CAM
I have that TSP Low Lift 212/218 in two different rigs, one 4.8 Liter with 4.56 gears, and an LQ9 with 3.73 gears. Both run GREAT.
78 mm IS plenty of throttle to get 6500 rpm out of 6 liters.
You will REALLY like that CAM
I have that TSP Low Lift 212/218 in two different rigs, one 4.8 Liter with 4.56 gears, and an LQ9 with 3.73 gears. Both run GREAT.
78 mm IS plenty of throttle to get 6500 rpm out of 6 liters.
Oh, I just can't wait for the love a thread resurrection gets around here!
You will REALLY like that CAM
I have that TSP Low Lift 212/218 in two different rigs, one 4.8 Liter with 4.56 gears, and an LQ9 with 3.73 gears. Both run GREAT.
78 mm IS plenty of throttle to get 6500 rpm out of 6 liters.
You will REALLY like that CAM
I have that TSP Low Lift 212/218 in two different rigs, one 4.8 Liter with 4.56 gears, and an LQ9 with 3.73 gears. Both run GREAT.
78 mm IS plenty of throttle to get 6500 rpm out of 6 liters.