Twin GT45's... anyone done it?
10-16-2016, 05:01 AM
#1
TECH Addict
Thread Starter
iTrader: (28)
Join Date: Sep 2008
Location: Deer park
Posts: 2,258
Likes: 0
Received 0 Likes
on
0 Posts
Twin GT45's... anyone done it? Tossing around the idea of trying them out on a 5.3 and super light car (2800 raceweight). Just found out I'm going to be a dad which I'm super excited about but I am going to sell a few high end parts although I'd still like to finish my car and have fun.
Has anyone tried twin GT45 eBay turbos on a 5.3 or 6.0? We know they are capable of 650-700whp As denmah has proven that time and time again and he'll for 189$ each shipped that's a bargain! The only issue I see is the big 1.05AR housing, wish someone made smaller housings for them.
Gen4 5.3
799's
TBSS intake
E85
1.69 Glide
3.70 Gear
2800lbs
At what point do we start looking into an aftermarket intake like a hi ram or pro flow? I would think this combo would want to leave at 4000-4400 and 10-15psi and shift upwards of 7500rpm.... should I be looking at a hi ram instead of the truck manifold? I know truck intake will make more torque at lower rpm but 4K+ rpm is already passing that "mid range" torque everyone likes from the stock intakes.
Has anyone tried twin GT45 eBay turbos on a 5.3 or 6.0? We know they are capable of 650-700whp As denmah has proven that time and time again and he'll for 189$ each shipped that's a bargain! The only issue I see is the big 1.05AR housing, wish someone made smaller housings for them.
Gen4 5.3
799's
TBSS intake
E85
1.69 Glide
3.70 Gear
2800lbs
At what point do we start looking into an aftermarket intake like a hi ram or pro flow? I would think this combo would want to leave at 4000-4400 and 10-15psi and shift upwards of 7500rpm.... should I be looking at a hi ram instead of the truck manifold? I know truck intake will make more torque at lower rpm but 4K+ rpm is already passing that "mid range" torque everyone likes from the stock intakes.
10-16-2016, 01:23 PM
#2
On The Tree
Join Date: Jun 2015
Location: Milwaukee Wisconsin
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
Tossing around the idea of trying them out on a 5.3 and super light car (2800 raceweight). Just found out I'm going to be a dad which I'm super excited about but I am going to sell a few high end parts although I'd still like to finish my car and have fun.
Has anyone tried twin GT45 eBay turbos on a 5.3 or 6.0? We know they are capable of 650-700whp As denmah has proven that time and time again and he'll for 189$ each shipped that's a bargain! The only issue I see is the big 1.05AR housing, wish someone made smaller housings for them.
Gen4 5.3
799's
TBSS intake
E85
1.69 Glide
3.70 Gear
2800lbs
At what point do we start looking into an aftermarket intake like a hi ram or pro flow? I would think this combo would want to leave at 4000-4400 and 10-15psi and shift upwards of 7500rpm.... should I be looking at a hi ram instead of the truck manifold? I know truck intake will make more torque at lower rpm but 4K+ rpm is already passing that "mid range" torque everyone likes from the stock intakes.
Has anyone tried twin GT45 eBay turbos on a 5.3 or 6.0? We know they are capable of 650-700whp As denmah has proven that time and time again and he'll for 189$ each shipped that's a bargain! The only issue I see is the big 1.05AR housing, wish someone made smaller housings for them.
Gen4 5.3
799's
TBSS intake
E85
1.69 Glide
3.70 Gear
2800lbs
At what point do we start looking into an aftermarket intake like a hi ram or pro flow? I would think this combo would want to leave at 4000-4400 and 10-15psi and shift upwards of 7500rpm.... should I be looking at a hi ram instead of the truck manifold? I know truck intake will make more torque at lower rpm but 4K+ rpm is already passing that "mid range" torque everyone likes from the stock intakes.
10-16-2016, 05:04 PM
#3
TECH Enthusiast
Originally Posted by Ragna
Im sure the turbos would work but that gear seems very high for a turbo setup, everyone ive seen has done a 3.23 or 3.25 or whatever..3.70+ are for like NA nitrous setups to give you more torque to make up for the lack of FI I believe...not 100% sure since this is my first turbo LS but I have turboed my integra GSR, and owned a SRT4 -RIP srt was a fun car- and they both had lower ish gears with turbo's. My concern would be running outta turbo/gear with such a high ratio dif gear.
10-16-2016, 05:10 PM
#4
On The Tree
Join Date: Jun 2015
Location: Milwaukee Wisconsin
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
10-16-2016, 06:41 PM
#5
TECH Addict
Thread Starter
iTrader: (28)
Join Date: Sep 2008
Location: Deer park
Posts: 2,258
Likes: 0
Received 0 Likes
on
0 Posts
Whether or not I can get these 77mm turbines to spool is another question lol. PTC usually can build converters lose as hell down low but still lock up really tight on the big end and produce low slip numbers