Anyone run twin stock turbos in paralell?

old skool.

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now guys can run that true dual exhaust system they've always wanted. lol
 
Forrest Nearing said:
on a V engine, the underhood packaging often lends itself to a turbo hanging off of each bank. I just don't see any good reason for parallels in a single stage on an I6.
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agreed, theres no performance gain from parallel turbos, (tho some argue the smaller wheels will allow for faster spool up, but were taking under 50rpm difference in spool up).

running parallel turbos on an I6 is just plain RICE
 
Too much fuel puts out the fire. Some prime examples are people with too large of an injector that can't get their EGTs over 1200°.
 
ride42 said:
Too much fuel puts out the fire. Some prime examples are people with too large of an injector that can't get their EGTs over 1200°.
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wtf are you talking about?

too much fuel, and not enough air = high egt's.

having so much fuel you smoke the turbo out = really high egt's
 
this site is a crack up

not like i am always right...

remember that one morning i posted that picture of a fuel plate upside down?

i still laugh when i think about that

had been up all night and was dinged (still am)
 
ps - if you dont think lack of air will send your egt's thru the roof pull on of your intercooler boots off and try driving your truck

if you dont see 2000° get some diff injectors

PEACE
 
Rollin Coal said:
wtf are you talking about?

too much fuel, and not enough air = high egt's.

having so much fuel you smoke the turbo out = really high egt's
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I've personally read where too much fuel has made it so the EGTs are low for the amount of fuel coming out. If there is no air to burn how is it going to get hot? Last I checked to have proper burn you need 14 parts air to 1 part of fuel for an engine to operate efficiently. If your drowned it with fuel it's not going to combust as it should and there will be no room for the air to get in for that proper burn. I don't see how you can have heat with no burn? If I go lock my truck up at 20mph and mash it to the floor so it's a smoke show my EGTs climb very very slowly almost with the rpm. So as it pumps more air into the engine for a more complete burn it gets hotter...weird?

That's just the way I've noticed things. So if I'm wrong then so be it but it makes sense in my head and from personal experience.
 
it does burn, 14.7:1 is stoichiometric for a gas motor.

black smoke = burned fuel
white smoke = unburned fuel

smoke wont spool a turbo.

right now when im driving alont egts are around 6-800, as i get in it to go up a hill or something egts quickly rise to 1000-1200, while making 10psi or so. if i floor it theres much less smoke and egts slowly climb to 1100 or so where it stays.
 
I noticed when I had bigger injectors, when you mash it and it lugs and smoke, egts are very low. But once the turbo lights, egts shoot up quickly. Have to agree with ride42, no air=no heat.

And go pull off an intercooler boot, it wont get as hot as you think.
 
is a 60mm work as a single you will need 2 turbo that are roughly 50% smaller to run as a parrallel setup..

parrelle twin 50mm would lite like a 80mm single

in other words example stock trubo flow 50lb/min in a single setup

for effective twin one wouldneed 2 20-30lbmin turbo to get similar drive habits

twin stock (50lbmin) trubos would mean you for 100lbmin of air... like trying to drive a 3-3.2" single trubo
 
Limited said:
And go pull off an intercooler boot, it wont get as hot as you think.
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i have blown them off towing and saw how hot it got

if you are climbing a grade you cant always just stop immediately and fix it

1000 big rigs and next turnout 1/4m
 
Consider a couple things when you have the discusion about egt's and unburned fuel. First, its not a gay guy straight guy kind of thing, it swings both ways. Second, Bryce, when you have your truck lugged and smoking like mad at 20mph what's the rpm? your pump is static timing and i happen to know its set at about 19.5 degree's, that leaves alot more time for the combustion gasses to cool down before exiting the chamber and hitting your probe. You can toast pistons with to much timing and never have an egt problem. That said, if you do have so much fuel that it quenches the flame then you will have the cooler egt's bryce referred to with people with to much injector. Third, the issue with the heat isn't that there is no combustion at all it's that it is incomplete and the super heated gasses leave the chamber hotter than hell because it's still trying to oxidize, or in other words the net timing has effectively been retarded. If i'm wrong correct me.
 
Rollin Coal said:
it does burn, 14.7:1 is stoichiometric for a gas motor.

black smoke = burned fuel
white smoke = unburned fuel

smoke wont spool a turbo.
right now when im driving alont egts are around 6-800, as i get in it to go up a hill or something egts quickly rise to 1000-1200, while making 10psi or so. if i floor it theres much less smoke and egts slowly climb to 1100 or so where it stays.
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no, but heat will. egtf+460/540*intake air flow cfm=exhaust flow
 
Sure, parallel twins on an inline engine will work (can be made to work:bang), but in practical application the $$ & time it takes could produce a lot more performance by optimizing either the large single or compounded twins.

i.e. better intake & exhaust flow quality and efficient thermal management of heat energy throughout the system.
 
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