5.3 turbo help
10-19-2013, 12:11 PM
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5.3 turbo help Well, im new on the v8 turbo world, i already have:
5.3 engine
317 heads (bouthg but not in my hands yet)
Ls9 gasket
Ls2 intake whit TB/Fuel rail/injectors
thinking in a TU1 cam not sure id 225/225 or 228/228
ARP head and rods bolts
turbonetics TC72
Tial wategate 44mm
is for my weekends car, a chevelle 69, i have some questions, im looking something betwen 650 - 750 whp, what would you guys recommend, i dont have the ecu yet, also would you recommend the Ls9 injectors.. any other info that want to share..
Btw sorry for my english..
Thanks
5.3 engine
317 heads (bouthg but not in my hands yet)
Ls9 gasket
Ls2 intake whit TB/Fuel rail/injectors
thinking in a TU1 cam not sure id 225/225 or 228/228
ARP head and rods bolts
turbonetics TC72
Tial wategate 44mm
is for my weekends car, a chevelle 69, i have some questions, im looking something betwen 650 - 750 whp, what would you guys recommend, i dont have the ecu yet, also would you recommend the Ls9 injectors.. any other info that want to share..
Btw sorry for my english..
Thanks
10-19-2013, 02:39 PM
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10-19-2013, 03:22 PM
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If you haven't already purchased your cam, you may wish to consider getting one spec'd by Martin at Tick Performance. I think he might suggest one of his 226/231 .605"/.598" 114+3 cams for your 5.3 motor. It has a slightly longer exhaust duration which you may benefit from. Hit him up and see what he says though. He's done some impressive things lately for people on here.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
10-19-2013, 06:31 PM
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If you haven't already purchased your cam, you may wish to consider getting one spec'd by Martin at Tick Performance. I think he might suggest one of his 226/231 .605"/.598" 114+3 cams for your 5.3 motor. It has a slightly longer exhaust duration which you may benefit from. Hit him up and see what he says though. He's done some impressive things lately for people on here.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
What about the ecu? What would you recommend?
10-19-2013, 09:29 PM
#6
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Can't help you there... not my specialty.
In my 2002 Camaro, it already has everything stock.
For my 1972 Camaro that I'm building, I'm swapping in a 4th Gen interior so I bought another ECU and wiring harness assembly for a 2000 Camaro so everything will plug in to the dash, etc. Essentially it will be a 2000 Camaro with a 1972 Camaro body. lol
I have heard good things about MicroSquirt I think???? Maybe ask Denmah or Martin @ Tick-Performance may be able to recommend something?
Good luck!
In my 2002 Camaro, it already has everything stock.
For my 1972 Camaro that I'm building, I'm swapping in a 4th Gen interior so I bought another ECU and wiring harness assembly for a 2000 Camaro so everything will plug in to the dash, etc. Essentially it will be a 2000 Camaro with a 1972 Camaro body. lol
I have heard good things about MicroSquirt I think???? Maybe ask Denmah or Martin @ Tick-Performance may be able to recommend something?
Good luck!
10-21-2013, 11:44 AM
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If you haven't already purchased your cam, you may wish to consider getting one spec'd by Martin at Tick Performance. I think he might suggest one of his 226/231 .605"/.598" 114+3 cams for your 5.3 motor. It has a slightly longer exhaust duration which you may benefit from. Hit him up and see what he says though. He's done some impressive things lately for people on here.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
Also, if you haven't purchased your turbo yet, consider something a little bigger than the TC72. Maybe a PT7675 or even a Magnum xt80.
As for fuel, I'd recommend Siemens Deka 80's and a Walbro 450 pump. If you plan on doing an external fuel pump, then Bosch 044 fuel pump.
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10-21-2013, 03:40 PM
#10
TECH Resident
It looks like you're trying to do a budget build. (Nothing wrong with that... just saying...)
If you are, you might consider a Magnum XT80 or the CXRacing version of it (GT45 80mm). Check out the below thread. I think the GT45 80mm would meet all your goals and it's cost effective. People have had good results with it. And it's slightly smaller (physically) than a Borg Warner.
https://ls1tech.com/forums/forced-in...flow-more.html
Just another option.
If you are, you might consider a Magnum XT80 or the CXRacing version of it (GT45 80mm). Check out the below thread. I think the GT45 80mm would meet all your goals and it's cost effective. People have had good results with it. And it's slightly smaller (physically) than a Borg Warner.
https://ls1tech.com/forums/forced-in...flow-more.html
Just another option.
10-21-2013, 04:48 PM
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On a 5.3 with 317s and LS9 headgaskets won't the compression be awfully low? Like around 8.4-8.6:1 or around that? Seems like that would be less than desirable IMO..
10-21-2013, 05:24 PM
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It looks like you're trying to do a budget build. (Nothing wrong with that... just saying...)
If you are, you might consider a Magnum XT80 or the CXRacing version of it (GT45 80mm). Check out the below thread. I think the GT45 80mm would meet all your goals and it's cost effective. People have had good results with it. And it's slightly smaller (physically) than a Borg Warner.
https://ls1tech.com/forums/forced-in...flow-more.html
Just another option.
If you are, you might consider a Magnum XT80 or the CXRacing version of it (GT45 80mm). Check out the below thread. I think the GT45 80mm would meet all your goals and it's cost effective. People have had good results with it. And it's slightly smaller (physically) than a Borg Warner.
https://ls1tech.com/forums/forced-in...flow-more.html
Just another option.
well, i saw at an older post that someone told that the compression on that set ( 317, ls9 gasket) is for around 9:5:1, how can i double check?
10-21-2013, 05:36 PM
#15
Look into Huron, there also pretty big on the Turbonetics snails which it sounds like you like. At the time I probably would have went w/ them but I wanted to keep AC and then they didnt offer a kit...I went w/ a Cxracing header kit and there 76mm GT45, and pieced together the rest of the parts myself.
10-21-2013, 08:45 PM
#16
If you have a dished piston 5.3 it will be around 8.6:1. Thats what I run. Nothing "wrong" with that compression. Just needs a couple extra lbs of boost to make up for it. One full point of compression is only worth about 4% total NA HP. By dropping one point you can easily make up for it and then some with added boost.
Just went 9.0 at 151 this weekend at 23.8lbs of boost. I think this stock bottom end motor would take 28+ with 8.6:1 and E85.
I'd second a bigger turbo but don't worry as much about the compressor side. Get a larger hot side. I'd go with the $640 (shipped) BW S475 with the T6 96x87mm Turbine and 1.32AR T6 Exhaust. Then run 2" hot-side piping.
IMO you don't need a custom spec'd cam for your goals either. ls6/L33 cam or even an LS1 cam would do it. I'm running the $98 zr1 cam that everyone says is crap. It makes decent power, but I think it would be better suited for a higher reving engine. If you are going with an aftermarket cam, you'd be better off with less duration and an even split. Isky "tripple twelve" or similar with .56x lift and cheapo pac 1218 springs.
Good luck!
Just went 9.0 at 151 this weekend at 23.8lbs of boost. I think this stock bottom end motor would take 28+ with 8.6:1 and E85.
I'd second a bigger turbo but don't worry as much about the compressor side. Get a larger hot side. I'd go with the $640 (shipped) BW S475 with the T6 96x87mm Turbine and 1.32AR T6 Exhaust. Then run 2" hot-side piping.
IMO you don't need a custom spec'd cam for your goals either. ls6/L33 cam or even an LS1 cam would do it. I'm running the $98 zr1 cam that everyone says is crap. It makes decent power, but I think it would be better suited for a higher reving engine. If you are going with an aftermarket cam, you'd be better off with less duration and an even split. Isky "tripple twelve" or similar with .56x lift and cheapo pac 1218 springs.
Good luck!
Last edited by Forcefed86; 10-21-2013 at 10:06 PM.
10-22-2013, 11:39 AM
#17
Look into Huron, there also pretty big on the Turbonetics snails which it sounds like you like. At the time I probably would have went w/ them but I wanted to keep AC and then they didnt offer a kit...I went w/ a Cxracing header kit and there 76mm GT45, and pieced together the rest of the parts myself.
10-22-2013, 11:43 AM
#18
If you have a dished piston 5.3 it will be around 8.6:1. Thats what I run. Nothing "wrong" with that compression. Just needs a couple extra lbs of boost to make up for it. One full point of compression is only worth about 4% total NA HP. By dropping one point you can easily make up for it and then some with added boost.
Just went 9.0 at 151 this weekend at 23.8lbs of boost. I think this stock bottom end motor would take 28+ with 8.6:1 and E85.
I'd second a bigger turbo but don't worry as much about the compressor side. Get a larger hot side. I'd go with the $640 (shipped) BW S475 with the T6 96x87mm Turbine and 1.32AR T6 Exhaust. Then run 2" hot-side piping.
IMO you don't need a custom spec'd cam for your goals either. ls6/L33 cam or even an LS1 cam would do it. I'm running the $98 zr1 cam that everyone says is crap. It makes decent power, but I think it would be better suited for a higher reving engine. If you are going with an aftermarket cam, you'd be better off with less duration and an even split. Isky "tripple twelve" or similar with .56x lift and cheapo pac 1218 springs.
Good luck!
Just went 9.0 at 151 this weekend at 23.8lbs of boost. I think this stock bottom end motor would take 28+ with 8.6:1 and E85.
I'd second a bigger turbo but don't worry as much about the compressor side. Get a larger hot side. I'd go with the $640 (shipped) BW S475 with the T6 96x87mm Turbine and 1.32AR T6 Exhaust. Then run 2" hot-side piping.
IMO you don't need a custom spec'd cam for your goals either. ls6/L33 cam or even an LS1 cam would do it. I'm running the $98 zr1 cam that everyone says is crap. It makes decent power, but I think it would be better suited for a higher reving engine. If you are going with an aftermarket cam, you'd be better off with less duration and an even split. Isky "tripple twelve" or similar with .56x lift and cheapo pac 1218 springs.
Good luck!
The 408 stroker cams with 220-240cc cylinder heads and OEM runner length manifolds I spec have 46-50 IVC events in comparison.
So a cam that has an IVC event of what I would specify for a 408 is not anywhere near IMO optimal for a 5.3 let alone a 4.8.
Something with a 34-38 IVC event works well with 4.8/5.3 engines. The latest I'd ever close the intake valve on a 5.3 turbo engine is 40-42 ABDC and it would have to be a hot little 5.3 to necessitate that late of a closing event.
Not to mention the ZR1 cams horrible exhaust events. Just doesn't make for an optimal turbo cam as it was designed to extend the power curve of a blower limited engine.
I know you like your torque as we discussed before, and that cam is killing what torque you have. The weight of your car is helping you tremendously in this area.
I would love to spec a 214/222 112lsa cam for your combination or a 218/226 if you wanted something a bit more powerful, but still torquey. It would come to life like you wouldn't begin to imagine. I like split in my small turbo cams because I've found blowing the piston down sooner with an earlier IVC event responds with quicker E.T.'s at the track and more MPH.
10-22-2013, 11:49 AM
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The nearly 47@.050" IVC event the ZR1 cam carries is horrible for any engine with a stock OEM intake manifold and anything under 4" of stroke.
The 408 stroker cams with 220-240cc cylinder heads and OEM runner length manifolds I spec have 46-50 IVC events in comparison.
So a cam that has an IVC event of what I would specify for a 408 is not anywhere near IMO optimal for a 5.3 let alone a 4.8.
Something with a 34-38 IVC event works well with 4.8/5.3 engines. The latest I'd ever close the intake valve on a 5.3 turbo engine is 40-42 ABDC and it would have to be a hot little 5.3 to necessitate that late of a closing event.
Not to mention the ZR1 cams horrible exhaust events. Just doesn't make for an optimal turbo cam as it was designed to extend the power curve of a blower limited engine.
I know you like your torque as we discussed before, and that cam is killing what torque you have. The weight of your car is helping you tremendously in this area.
I would love to spec a 214/222 112lsa cam for your combination or a 218/226 if you wanted something a bit more powerful, but still torquey. It would come to life like you wouldn't begin to imagine. I like split in my small turbo cams because I've found blowing the piston down sooner with an earlier IVC event responds with quicker E.T.'s at the track and more MPH.
The 408 stroker cams with 220-240cc cylinder heads and OEM runner length manifolds I spec have 46-50 IVC events in comparison.
So a cam that has an IVC event of what I would specify for a 408 is not anywhere near IMO optimal for a 5.3 let alone a 4.8.
Something with a 34-38 IVC event works well with 4.8/5.3 engines. The latest I'd ever close the intake valve on a 5.3 turbo engine is 40-42 ABDC and it would have to be a hot little 5.3 to necessitate that late of a closing event.
Not to mention the ZR1 cams horrible exhaust events. Just doesn't make for an optimal turbo cam as it was designed to extend the power curve of a blower limited engine.
I know you like your torque as we discussed before, and that cam is killing what torque you have. The weight of your car is helping you tremendously in this area.
I would love to spec a 214/222 112lsa cam for your combination or a 218/226 if you wanted something a bit more powerful, but still torquey. It would come to life like you wouldn't begin to imagine. I like split in my small turbo cams because I've found blowing the piston down sooner with an earlier IVC event responds with quicker E.T.'s at the track and more MPH.
10-22-2013, 01:10 PM
#20
The nearly 47@.050" IVC event the ZR1 cam carries is horrible for any engine with a stock OEM intake manifold and anything under 4" of stroke.
The 408 stroker cams with 220-240cc cylinder heads and OEM runner length manifolds I spec have 46-50 IVC events in comparison.
So a cam that has an IVC event of what I would specify for a 408 is not anywhere near IMO optimal for a 5.3 let alone a 4.8.
Something with a 34-38 IVC event works well with 4.8/5.3 engines. The latest I'd ever close the intake valve on a 5.3 turbo engine is 40-42 ABDC and it would have to be a hot little 5.3 to necessitate that late of a closing event.
Not to mention the ZR1 cams horrible exhaust events. Just doesn't make for an optimal turbo cam as it was designed to extend the power curve of a blower limited engine.
I know you like your torque as we discussed before, and that cam is killing what torque you have. The weight of your car is helping you tremendously in this area.
I would love to spec a 214/222 112lsa cam for your combination or a 218/226 if you wanted something a bit more powerful, but still torquey. It would come to life like you wouldn't begin to imagine. I like split in my small turbo cams because I've found blowing the piston down sooner with an earlier IVC event responds with quicker E.T.'s at the track and more MPH.
The 408 stroker cams with 220-240cc cylinder heads and OEM runner length manifolds I spec have 46-50 IVC events in comparison.
So a cam that has an IVC event of what I would specify for a 408 is not anywhere near IMO optimal for a 5.3 let alone a 4.8.
Something with a 34-38 IVC event works well with 4.8/5.3 engines. The latest I'd ever close the intake valve on a 5.3 turbo engine is 40-42 ABDC and it would have to be a hot little 5.3 to necessitate that late of a closing event.
Not to mention the ZR1 cams horrible exhaust events. Just doesn't make for an optimal turbo cam as it was designed to extend the power curve of a blower limited engine.
I know you like your torque as we discussed before, and that cam is killing what torque you have. The weight of your car is helping you tremendously in this area.
I would love to spec a 214/222 112lsa cam for your combination or a 218/226 if you wanted something a bit more powerful, but still torquey. It would come to life like you wouldn't begin to imagine. I like split in my small turbo cams because I've found blowing the piston down sooner with an earlier IVC event responds with quicker E.T.'s at the track and more MPH.
I’m not trying to defend this cam or claiming it’s “great” for my setup or anyone else’s. Something custom ground for your specific setup will always be better if you can afford it.
This was a mock-up motor I threw it together dirt cheap. I still think the ZR1 will perform better than the OEM 5.3 cam which was my other choice when I built the engine. Looking at the dyno tests carcraft did on a “stock” 5.3, the ZR1 is comparable to an L33, LS6, or LS1 cam in NA power output. It is what it is for a cheap cam. http://www.carcraft.com/techarticles...mparisons.html
Going by race weight and trap speed I’m over 800whp through an auto and 9” rear. I’m not complaining to loudly as this is still a bone stock $220 short block running 8.6:1 compression. If guys are pushing 26+lbs in 10:1 LS 5.3's with similar turbos, technically This setup should still have some steam left in it. I didn't want to walk home so i've been taking baby steps.
