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Diy Log Manifold

Crans

By Crans,
in Engines & Forced Induction

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Yes to all

well that's hardly comparable.

E85 changes the rules somewhat similar to race grade fuels.

You often can make 30-40rwkw extra with the restriction in place.

You result would be close to 300 when you take 40 off for E85, and then 20 for hubs.

You'd hardly then be running 27psi without the fuel too :P

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

So was my 3" exhaust @ 270rwkw/17psi when it was showing an issue/restriction. :)

Drop in race fuel (sunoco 104) and all of a sudden we were @ 370rwkw/24psi with the same exhaust. We could use more timing and boost everywhere.

Just goes to show it's not just about the gas :)

Obviously exhaust and manifold are not the same particular part, but similar issue none the less.

I've seen another car with GT-SS's do the same thing PULP vs Race fuel and a 3" exhaust

Lithium Grand Master

Lithium

Posted
Posted

Thats very very cool, always suspected they should be able to make that kind of power with an un-shy amount of boost - wicked power at 4000rpm too :D

Any plans to get it on a dragstrip or something?

SimonR32 Grand Master

SimonR32

Posted
Posted

Just on a side note... The AMMRR dyno seems to spit out some very kind figures even for a hub dyno!

"Simon-R32" 3076R 0.63 rear is spitting out what would seem impossible hp for the boost level and "wasnt me" with his internal w/g 3076R 0.8 rear is spitting out huge numbers at low revs that also appear impossible...

I'm not trying to start a shit fight in regards to dyno results but I think they might have to be taken with a grain of salt!

wasnt me Collaborator

wasnt me

Posted
Posted

Just on a side note... The AMMRR dyno seems to spit out some very kind figures even for a hub dyno!

"Simon-R32" 3076R 0.63 rear is spitting out what would seem impossible hp for the boost level and "wasnt me" with his internal w/g 3076R 0.8 rear is spitting out huge numbers at low revs that also appear impossible...

I'm not trying to start a shit fight in regards to dyno results but I think they might have to be taken with a grain of salt!

i would agree 100% thats why i said it would make between 350-360 rwkw on a chassis dyno.... ill tell you right now my cars not making 411rwkw lol

SimonR32 Grand Master

SimonR32

Posted
Posted

i would agree 100% thats why i said it would make between 350-360 rwkw on a chassis dyno.... ill tell you right now my cars not making 411rwkw lol

Yeah fair call... STP correction apparently is the highest correction (so maybe get them to turn it off when they print off the graph). Might even try to put correction on my runs to see what it makes haha

To the defense of the guys in Adelaide it's a bit hard to run a mph when they don't have a drag strip (kehehehe)

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