Smallest twin for 5.7 ls1 swap
#62
Restricted User
When its on the dyno, there are no space constraints.
Hack the flanges off of truck manifolds, use OBX 2.5" to T3 transition flanges. A single 2.5" U-bend is enough to connect the truck manifolds to the transition flange. Quick and easy.
Turbos come with 2.5" V-bands. Just use leftover 2.5" piping. 45* down, 3' straight to the exhaust vent, 45* to straighten the pipe back out. We're talking about 8 cut/welds on a band saw.
Use the oil pressure sensor hole with a $6 fitting and a T to feed the turbos, return them into the pan via the oil level sensor hole with careful consideration for turbo placement and drain angle (they make a fitting for this).
You're looking at 90 minutes of cutting/welding for the hotside and 30 minutes to make up some feed/return lines.
I'd say 2 hours was impossible if I hadn't fabbed up more quick and easy turbo setups than the number of engines most people have wrenched on.
Hell, it took 10 hours or so to fab up the quad turbo setup on my corvette using blank header flanges and a box of 1 3/4" U-bends, 2.5" U-bends, and 3" side pipes. That includes all of the oil feed/return lines and shaping the tubing for the divided T3 flanges. Twins with 2.5" to T3 transition flanges and stock truck manifolds is GRAVY.
Hack the flanges off of truck manifolds, use OBX 2.5" to T3 transition flanges. A single 2.5" U-bend is enough to connect the truck manifolds to the transition flange. Quick and easy.
Turbos come with 2.5" V-bands. Just use leftover 2.5" piping. 45* down, 3' straight to the exhaust vent, 45* to straighten the pipe back out. We're talking about 8 cut/welds on a band saw.
Use the oil pressure sensor hole with a $6 fitting and a T to feed the turbos, return them into the pan via the oil level sensor hole with careful consideration for turbo placement and drain angle (they make a fitting for this).
You're looking at 90 minutes of cutting/welding for the hotside and 30 minutes to make up some feed/return lines.
I'd say 2 hours was impossible if I hadn't fabbed up more quick and easy turbo setups than the number of engines most people have wrenched on.
Hell, it took 10 hours or so to fab up the quad turbo setup on my corvette using blank header flanges and a box of 1 3/4" U-bends, 2.5" U-bends, and 3" side pipes. That includes all of the oil feed/return lines and shaping the tubing for the divided T3 flanges. Twins with 2.5" to T3 transition flanges and stock truck manifolds is GRAVY.
#63
Restricted User
You can keep getting pissed all you want.
I offered to pay shipping, do the dyno for free, and put impossible odds against myself and you're backing out.
I've asked you to show us these 550whp N/A setups that make a turbo setup pointless, still nothing.
What a joke.
I offered to pay shipping, do the dyno for free, and put impossible odds against myself and you're backing out.
I've asked you to show us these 550whp N/A setups that make a turbo setup pointless, still nothing.
What a joke.
#64
with a team anything is possible within 2 hrs!
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89sierra (06-25-2019)
#65
TECH Addict
iTrader: (1)
Originally Posted by HioSSilver
Someone is full of **** if they think they gonna fab up a turbo system in 2 hrs.....end of starry. No use in even conversing with you.
Seriously go back to Srk where people will listen to your bullshit. Your car is slow get over it. 500whp is nothing these days. I best you get walked by bolt on coyotes.
#66
Lmao how long do you think it takes to fab a hot side? It's really ducking easy. I builder kit from Columbia mandrel and 2 hrs and I'm done.
Seriously go back to Srk where people will listen to your bullshit. Your car is slow get over it. 500whp is nothing these days. I best you get walked by bolt on coyotes.
Seriously go back to Srk where people will listen to your bullshit. Your car is slow get over it. 500whp is nothing these days. I best you get walked by bolt on coyotes.
#67
10 Second Club
iTrader: (8)
Weird how people wait months to get turbo kits when these guys can do it in 2hrs.
Lmao how long do you think it takes to fab a hot side? It's really ******* easy. I builder kit from Columbia mandrel and 2 hrs and I'm done.
Seriously go back to Srk where people will listen to your bullshit. Your car is slow get over it. 500whp is nothing these days. I best you get walked by bolt on coyotes.
Seriously go back to Srk where people will listen to your bullshit. Your car is slow get over it. 500whp is nothing these days. I best you get walked by bolt on coyotes.
But from the looks of yall being accepting of 550whp 5.7s it looks like yall's turbo 5.7 would get it's *** whooped by a turbo coyotah. From my na results mine would not.
And no....not one of you are building a turbo kit in 2hrs.
#69
7 Second Club
Is there any section on LS1 tech where Hiollary doesn't get owned? HAHAHA
#74
10 Second Club
iTrader: (8)
I told ya about darths. Pretty easy to find. I have one going together so you'll have to wait on that till it's together.
It's been 2hrs. You should have another turbo kit together by now.
It's been 2hrs. You should have another turbo kit together by now.
#76
10 Second Club
iTrader: (26)
Even Darth admitted the shortcomings for a street car on that motor. And Darth didn't make 550whp. Let's say he did......ONE motor did it lol. MAYBE a 2nd with that guy in the vette, forget his name, and that was racecar. I'll have less than $5k in my motor and turbo kit and should be good to at least 650whp Should post up dyno graphs of a 550whp NA setup and 550whp boosted setup and compare. Pretty easy to see what's what then.
#77
Restricted User
https://ls1tech.com/forums/generatio...host-hawk.html
1. Darth didn't make 550.
2. The Mamo 220 heads he used are $2600 which are more expensive than the cost of this 930whp 4.8 build: https://ls1tech.com/forums/dynamomet...sbe-4-8-a.html
3. Either the FAST 102 or MSD 102 that Darth used are each more expensive than an entire self-fabbed 550+ whp turbo setup.
4. Electric water pumps aren't always street friendly even if his may have been.
5. Solid roller in Darth's build. 550 wheel can be done on even a 4.8 with the stock cam.
6. Darth had a T56. This whole time I've been talking about 550whp, I've been talking about doing it through an AUTO.
7. That engine only made 441 ft-lbs. A turbo setup would have made 200 more.
8. Darth's engine is no longer running. It fried the oil rings and rod bearings.
Darth had an awesome setup, but it was FAR less cost effective and street friendly than a turbo LS1 of the same power level.
Even IF you hit 550 at the wheels (you won't), a basic turbo setup will still be a more cost effective, driveable, torquey setup with better fuel consumption.
And you're right. I could've fabricated a few turbo setups in the time we've been sitting here talking. How much time do you think you'll have invested in yours if it eventually gets done?
#78
10 Second Club
iTrader: (8)
Still like to see op's acceleration goals.
Even Darth admitted the shortcomings for a street car on that motor. And Darth didn't make 550whp. Let's say he did......ONE motor did it lol. MAYBE a 2nd with that guy in the vette, forget his name, and that was racecar. I'll have less than $5k in my motor and turbo kit and should be good to at least 650whp Should post up dyno graphs of a 550whp NA setup and 550whp boosted setup and compare. Pretty easy to see what's what then.
One motor is all you need to do it. Others can be built off what was learned. Or people can be a idiot like you and do h/c and boost and not be any faster than a solid bolt on set up.
So wtf did you learn? What envelope did you push? Nothing that's what. Your **** performed like **** and I'm actually kinda of surprised these other idiots aren't laughing you out of here. Maybe some if their **** don't perform any better....idk.
Now I'm gonna be building off what darth did. He sent me his cam so I'll be using it. I'll be using some gmpp ls6 heads cs his mamo heads on a fresh bottom end. Hopefully in a short while we'll see somewhere near 550. My builder has built a 630hp crank 5.7 and it used stock 243s. So yea it is most definitely a possibility.
Last edited by HioSSilver; 06-26-2019 at 07:30 AM.
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panda240ss (06-27-2019)
#80
10 Second Club
iTrader: (26)
Might actually turn out cheaper than doing the labor himself. Funny part is I know nothing, yet my SBE D1SC at 7 psi went faster than his fox with an entire Cobra motor/blower swap.....and my 3800lb 383 turbo daily driver getting 30 mpg's went faster and quicker at 8 psi than the almighty "bolt-in" 3200 lb faceplated disaster on the 4th motor. Its sad since said disaster "cut a 1.2 sixty foot" on the hero pass and still was slower.