Ls1 Iroc Swapping to Turbo - billet 78/75 and A/W - Page 4 - LS1TECH - Camaro and Firebird Forum Discussion



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Ls1 Iroc Swapping to Turbo - billet 78/75 and A/W

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Old 01-30-2017, 12:21 AM   #61
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I gotta say that turbo sounds trick..thats my only complaint about my On3 is how quiet it is lol. Im getting closer to swapping to the On3 billet 84mm..cause why not lol.Maybe it might light off a lil faster and sound meaner.Congrats on making some of your first blow off sounds lol.
My 7875 whistles pretty loud. 4" downpipe though and no filter.
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Old 01-30-2017, 09:49 AM   #62
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I gotta say that turbo sounds trick..thats my only complaint about my On3 is how quiet it is lol. Im getting closer to swapping to the On3 billet 84mm..cause why not lol.Maybe it might light off a lil faster and sound meaner.Congrats on making some of your first blow off sounds lol.
I was kind of hoping to keep a low profile with the turbo setup, but it don't look like that's going to be doable. I can't wait to go let this thing rip
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Old 01-30-2017, 06:33 PM   #63
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My On3 gets loud when in full boost..but compared to the vs billet seems like there is quite an audible difference. City streets you wouldnt know my car is turbo charged for the most part. I have 3inch downpipe and no filter..if I do get the 84mm from On3..i think that may change things up for sure.
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Old 01-30-2017, 07:25 PM   #64
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I just went from a TC78 (78/68) to a billet T7575 and noticed the same thing about it not being nearly as loud. Maybe it's a billet wheel thing?

Nice build. Where are the pics of those billet specialties mounted?!
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Old 01-31-2017, 05:05 PM   #65
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I've heard. People complain before that the on3/vs racing cast wheel isn't as loud as some other turbo's. this billet wheel one is incredibly loud. It's crazy haha.

Ordering a set of 28x10.50 15 pro bracket radial tires this weekend then you will get to see them.
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Old 01-31-2017, 05:06 PM   #66
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Also I ordered 8an line for the feed and I'm going gto redo my fuel system to be 8an feed and return with twin 340lph pumps. Should support all I need.
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Old 02-06-2017, 08:43 AM   #67
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Hooked my gates up to my mbc.

How restrictive would a 4" 90 be right off the inlet and down thrue the batter box tray with an air filter underneath they tray?





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Old 02-06-2017, 09:24 AM   #68
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Wyontom gates? Love them for the price.

90* isn't optimal but Dont think it would be that bad. I'm a big fan of real filters vs screens, so I would take the restriction in flow gladly knowing I have clean air being sucked in... esp on the street.
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Old 02-06-2017, 09:28 AM   #69
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Also I ordered 8an line for the feed and I'm going gto redo my fuel system to be 8an feed and return with twin 340lph pumps. Should support all I need.
Interested to see how you do the fuel system. Ive run -10 feed but an external dual EFI dominator fuel pump setup with the stock sumped tank. But Keeping dual EFI intakes is always fun to see how you get them to fit. Worst part is plumbing through the top sender. I currently run one aeromotive 340lph in tank and it has been great. You also need to upgrade the wiring big time as the single 340 pump pulls a ton of amps... let alone two.
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Old 02-06-2017, 01:50 PM   #70
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Yessir twin 38mm wyntomn. I disassembled them and anti seized the stem. Looked real good, I'm about ready to let this thing rip.
I've got an old plastic K&n Intake tube from my cummins, 4" and it has a 90 direct off the compressor housing. Going to cut that up and try to make it work.

Fuel system will be done like this, bulkhead fitting thru the top of the sender.





It's crazy how much the wiring and the submersible fuel line costs for this ****. Know of any alternatives to $25 a foot for the fuel line and fuel rates electrical wire?
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Old 02-06-2017, 02:00 PM   #71
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Yessir twin 38mm wyntomn. I disassembled them and anti seized the stem. Looked real good, I'm about ready to let this thing rip.
I've got an old plastic K&n Intake tube from my cummins, 4" and it has a 90 direct off the compressor housing. Going to cut that up and try to make it work.

Fuel system will be done like this, bulkhead fitting thru the top of the sender.





It's crazy how much the wiring and the submersible fuel line costs for this ****. Know of any alternatives to $25 a foot for the fuel line and fuel rates electrical wire?

have you seen the sender on the 3rd gen? U have no room. The OE tuning is right next to each other. The sender is also not steel so you can't weld it.

Yes. The aeromotive pumps come with a pigtail and extra fuel rated wire. There is enough to run the wire through the sender cap and then you can run wire of your choice. I drilled a hole in the sender cap and ran the wire and then JB welded it closed.

Here re is my aeromotive install. So you can see what I did or got with my pump.



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Old 02-06-2017, 02:26 PM   #72
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I have a 4th gen lt1 tank haha.
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Old 02-06-2017, 07:38 PM   #73
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Ah gotcha. Well hopefully that gives you more room. I prob should have just went with an LS1 plastic tank.

either way u can see that aeromotive provides a good bit of wire and connector with their pump, it must be fuel rated so I would think if the pump distance is near or less than the 3rd gen then you have enough at least to get it through the sender and then wire it with normal wire. Aeromotive wire gauge is like 14 I believe.
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Old 02-06-2017, 08:41 PM   #74
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Yessir I already have one aeromotive in it, and I did the same as you. With the wiring
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Old 02-06-2017, 10:33 PM   #75
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Picked up two 235/45/17 bfg Gforce t/a tonight for the front tires.
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Old 02-07-2017, 10:22 AM   #76
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How restrictive would a 4" 90 be right off the inlet and down thrue the batter box tray with an air filter underneath they tray?
Mine is ran just like what you're describing. 90* straight down off turbo to another 90 that points toward the bumper with a big k&n. Gets fresh air through the fog light hole. Not sure if it's a restriction but it seems to work well.
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Old 02-07-2017, 11:39 AM   #77
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Do you have silicone 90's or metal/plastic ones?
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Old 02-07-2017, 08:26 PM   #78
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My pro bracket radials need to hurry up!
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Old 02-08-2017, 10:56 AM   #79
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Yup now going turbo seems so tempting....nice work!
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Old 02-08-2017, 12:01 PM   #80
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Haha man I'm dying inside. I should have built the fuel system first. Now the car is fully capable of racing, except I'm fuel limited. I want to go drive it so damn bad. Bad enough I'm out here in 25* weather working on it :/ You won't regret it! Just ordered all the stuff to Turbo my fathers 70 SS ls1 nova.
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