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Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

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Old 11-10-2013, 04:58 PM
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Default Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

So i got my set up all ready to go. Should be getting dyno tuned within the next 2 weeks. I would like to hear suggestions,experiences on how much power i should try and make. NOTE: THIS WILL BE A Dd


81.5 b18b1
Wiseco 9:1 cr pistons
Eagle h beam rods
King main and rod bearings
Polished crank
Itr oil pump
Gsr water pump
Gates tbelt
New t belt tensioner
Oem head gasket
Arp head studs
Block decked 17 thou
Head surfaced 5 thou
Ngk 7 sprk plugs
Phantom grip lsd on ls trans.
Rc 1000cc injectors
340Lph fuel pump
B&m fuel pressure regulator kit
Aem uego
HEAD IS BONE STOCK with supertech seals

Turbo Precision 4431e t3t4 60 cold ar 63 hot
2.5 inch crush bent down pipe attached to a skunk 2 mega power catback
HONDATA S300
Tial 38 mm waste gate
Hondata s300 ver 1
Old 11-10-2013, 05:41 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Bump
Old 11-10-2013, 08:30 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

your max hp will pretty much be limited to whatever fuel you decide to use. if you'll be using pump gas, that will definitely create a power limit, which often tends to be around 450 absolute max.

I don't see anything about the block being modded though. so you're still running open deck without a block guard? that affects things too, and may limit you to around 300hp to prevent cylinders from cracking.
Old 11-10-2013, 10:08 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

people make tons of hp on stock sleeves, it's all in the tune. I've seen cars make over 700hp on stock sleeves without issue. Granted sleeves offer a greater safety margin but with his turbo size he won't be making that much

Precision rates the turbo at 565hp but thats to the crank, at the limit... The turbine side will really limit that turbo and on pump gas, on a straight ls, you'll be lucky to make 400hp

especially with a stock head, a 2.5" crush bent downpipe and that small exhaust. I also wouldn't be amazed if you broke that phantom fail either
Old 11-11-2013, 06:31 AM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

the trick with the phantom grip really is just to weld the retainer pins. usually when they fail it's because the pins walk out and jam into something, causing a catastrophic explosion :p
Old 11-11-2013, 06:50 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Yes stock sleeves and no block guard.
I hinestly want 350 max!
Little exhaust? Its a 3 inch catback?
This will be on 91 pump gas.
And the lsd braking. I hope not. Rather replace axels.



Thanks for the replies.
Old 11-11-2013, 06:50 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Anybody else wana share experiences with similar set ups. Please do
Old 11-11-2013, 07:23 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

wantboost already told you what you need to know.
Old 11-11-2013, 08:02 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Originally Posted by Khnemu
wantboost already told you what you need to know.
co-sign

block guard? yeah right
Old 11-11-2013, 08:24 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

last time I checked the mega power wasn't 3", not for a honda app.

that downpipe also isn't doing you any favors, get a 3" mandrel bent piece to help out with response and power production

don't waste your time with a block guard, total waste of money, do nothing, and you almost have to cut the motor in half to get one out
Old 11-11-2013, 10:02 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Originally Posted by wantboost
last time I checked the mega power wasn't 3", not for a honda app.

that downpipe also isn't doing you any favors, get a 3" mandrel bent piece to help out with response and power production

don't waste your time with a block guard, total waste of money, do nothing, and you almost have to cut the motor in half to get one out
Skunk2 Megapower RR is 76mm .. 3".
Old 11-11-2013, 10:04 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

ah, ok.

The downpipe will be the Achilles heel of your setup
Old 11-11-2013, 10:15 PM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

My sig

Soon I am going to add water/meth and shove 23-24 psi in it and see what I get outta it.
Old 11-12-2013, 02:56 AM
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Default Re: Max horsepower suggestions. 81.5 mm b18b1 turbo. ls-t experts please chime in!

Definitely would go with the 3" mandrel bent downpipe. Buy the flange, or use the one on that pipe, some mandrel elbows and take it to the shop to redo it.
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