intake set up
May 14, 2007 | 01:14 PM
#11
Going with the L92 heads/L76 intake/90mm TB will net approximately 60-70 horsepower over your current setup (I would say minimum).
If your truck is putting down 380-390 rwhp currently, you should expect to put down around 450 rwhp with the new setup (assuming the cam is right). Thats actually a gain of around 70-80 flywheel horsepower. With that converter you will experience zero low end loss of hp or torque. From the flash through shift point it will make a ton more power EVERYWHERE.
Youll also gain alot more usable RPM with a longer powerband, this will add additional gains to ET than just the horsepower gain as well. You can expect to shift it around 6600 with the new setup where as you might be 6000rpm now.
The swap requires several modifications including water pump drilling/tapping, welding closed stock outlet port, fabricating a idler pulley relocation bracket, cutting/splicing injector plugs for different style injectors, changing TAC module, redoing the stock fuel line to connect to new fuel rail etc...
Just make sure you have someone do it that knows what they are doing. It takes fabrication that your average guy might not be able to do.
For the money its a GREAT value.
You get upgraded injectors, 90mm TB, intake everything for a cheap price. If you compare that to just swapping to a FAST 90MM or a SSR 90MM, neither of those will make comparable horsepower with the ported 6.0 heads you have now.
You're best off selling the ported heads you have now, and swapping over to the complete L92/L76.
I would expect to put that truck SOLIDLY in the 11's (I can see it going 11.60-11.80 at approx 114mph with the new setup.
Btw: You know the perfect guy for the install and retune. Me
If your truck is putting down 380-390 rwhp currently, you should expect to put down around 450 rwhp with the new setup (assuming the cam is right). Thats actually a gain of around 70-80 flywheel horsepower. With that converter you will experience zero low end loss of hp or torque. From the flash through shift point it will make a ton more power EVERYWHERE.
Youll also gain alot more usable RPM with a longer powerband, this will add additional gains to ET than just the horsepower gain as well. You can expect to shift it around 6600 with the new setup where as you might be 6000rpm now.
The swap requires several modifications including water pump drilling/tapping, welding closed stock outlet port, fabricating a idler pulley relocation bracket, cutting/splicing injector plugs for different style injectors, changing TAC module, redoing the stock fuel line to connect to new fuel rail etc...
Just make sure you have someone do it that knows what they are doing. It takes fabrication that your average guy might not be able to do.
For the money its a GREAT value.
You get upgraded injectors, 90mm TB, intake everything for a cheap price. If you compare that to just swapping to a FAST 90MM or a SSR 90MM, neither of those will make comparable horsepower with the ported 6.0 heads you have now.
You're best off selling the ported heads you have now, and swapping over to the complete L92/L76.
I would expect to put that truck SOLIDLY in the 11's (I can see it going 11.60-11.80 at approx 114mph with the new setup.
Btw: You know the perfect guy for the install and retune. Me
May 14, 2007 | 05:41 PM
#13
Staging Lane
Joined: Mar 2007
Posts: 85
Likes: 0
From: Bakersfield,CA
Originally Posted by RickLowpez
well guys im very happy with my truck its a rcsb lq9 with ported heads(317) full bolt ons. ran a 12.39 at108.68 with a 1.74 60ft. now 4 the ??????????????? it still has the stock truck intake. do u guys see it benifisual 2 go l92/l76 on heads and intake. dont want to lose any where in the tq or hp. let me know ur thoughts? thank u
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