22.3psi+ and 18.0:1 compression discuss....

[DSMeclipse4G63]

Ok gear heads imagine this.....

-4 valves percylinder
-18.0:1 compression ratio
-direct fuel injection
-turbo flow 732cfm at 3300rpm
-bigger turbo housings then a 50 trim just about the same wheel sizes of a 16g
-MINIMUM spec for boost 22psi
-full boost buy 1200rpm
-pump gas
-stock tune on enginemanagement

discuss.....

 

[ImBoostedRu]

I dont think it will work because even on a n/a motor after something like 12.5:1 compression ratio you are suppose to run race gas and then adding a turbo. I jusy checked the boosted compression ratio at 22psi was 32.8:1 and the recomended octane rating was 163.

 

[IMMORTALSPYDER]

I figured you'd ask this here. Somebody will figure it out....hopefully :laugh:

 

[crankbender]

-pump gas

discuss.....

hint...this pump gas will not work in a DSM

 

[L2RTSiAWD]

Ok gear heads imagine this.....

-4 valves percylinder
-18.0:1 compression ratio
-direct fuel injection
-turbo flow 732cfm at 3300rpm
-bigger turbo housings then a 50 trim just about the same wheel sizes of a 16g
-MINIMUM spec for boost 22psi
-full boost buy 1200rpm
-pump gas
-stock tune on enginemanagement

discuss.....

Ok people listen up.......This is why you don't smoke crack. :laugh: :laugh:

 

[ImBoostedRu]

I figured you'd ask this here. Somebody will figure it out....hopefully :laugh:

Ok, what is that supposed to mean?

 

[IMMORTALSPYDER]

He's talking about a deisel. No crack involved.

 

[wishihadatalon]

i was going to say diesel too

 

[ImBoostedRu]

Ok, if you are talking about diesel then he should really say pump fuel and not gas since diesel is not gas.

 

[DSMeclipse4G63]

yeah I should have said fuel,I just finished my diesel certifacations for ford and I wanted to share with you the specs on a new ford diesel. 18.0:1 with high boost is unbelivable, I was going to see how long it took but chris answered it for you
Andrew

 

[MyBlack94GST]

Without reading down, is it a diesel?

 

[Shifty]

Guy here wants to run 32psi in his turbo v8 diesel, in quad cab ford.

 

[awd4g63]

I didn't think they ran that much boost. I figured it was around 5-10 psi seeing as how the turbos aren't big enough and the intake piping is too big to support anything above that efficiently. The turbos are big, but not that big. However, their compression does run well into the 20's occasionally.

 

[Lunch_Box]

Just do some propane and nitous injections. Disel engines love it.

 

[Ken]

18:1 and 20+psi is nothing new in a diesel. over here I've seen diesel VWs run down the drag strip and have been past by an Audi wagon going 120+mph.

 

[thekellbeast]

I didn't think they ran that much boost. I figured it was around 5-10 psi seeing as how the turbos aren't big enough and the intake piping is too big to support anything above that efficiently. The turbos are big, but not that big. However, their compression does run well into the 20's occasionally.

Diesels run upwards of 30, 70, even 100 psi. Some of the tractor pull diesels have been known to run psi levels around 250. They don't have to worry about knock, because that's how the engine works. Typically smaller diesels, like VW's, use one turbo, but the larger ones can use up to 4, all boosting into each other.

 

[Juggalo]

I didn't think they ran that much boost. I figured it was around 5-10 psi seeing as how the turbos aren't big enough and the intake piping is too big to support anything above that efficiently. The turbos are big, but not that big. However, their compression does run well into the 20's occasionally.

Well you thought wrong.

My buddy runs 53 psi in his Ram. Oh and it runs 12s.

 

[awd4g63]

Damn, you learn something new everyday, eh?

Well you thought wrong.

Well, that's nice to know

53 psi and he only runs 12's? Sissy.


btw- I'm just busting your balls

 

[greyforestgst]

diesel turbos, cummins as one fine example, can hold together with 100psi of boost.

knock? they run off it!

 

[kelvinb]

diesel turbos, cummins as one fine example, can hold together with 100psi of boost.

knock? they run off it!

Tell him he needs to upgrade his spark plugs :laugh: :laugh:

 

[DSMeclipse4G63]

Guy here wants to run 32psi in his turbo v8 diesel, in quad cab ford.

tell him to say bye bye to his shortblock....

diesel turbos, cummins as one fine example, can hold together with 100psi of boost.

knock? they run off it!

no such animal in a diesel engine they dont get kncok cause of direct injection.

yes a diesel can handel more psi then a gas motor...BUT they cant handle too much cause the clearence between the top of the piston and the bottom of the head is measured in millionths of an inch(very very small). They are ignited by injecting diesel fuel at around 7k-30k psi directly into the combustion chamber when the piston is at the right point. They dont have an ignition system the engine timing is controlled by the PCM and IDM or ficum(injector driver module). The only way youll run 30+psi SAFELY is with the right engine control and pretty much all the engine controls out there for diesel's are blind piggy backs so no matter what happens it will still keep adding fuel. Modules consitantly destroy 5,3, and 7 piston by melting them.

Andrew
certified diesel tech

 

[dsm5150]

tell him to say bye bye to his shortblock....



no such animal in a diesel engine they dont get kncok cause of direct injection.

yes a diesel can handel more psi then a gas motor...BUT they cant handle too much cause the clearence between the top of the piston and the bottom of the head is measured in millionths of an inch(very very small). They are ignited by injecting diesel fuel at around 7k-30k psi directly into the combustion chamber when the piston is at the right point. They dont have an ignition system the engine timing is controlled by the PCM and IDM or ficum(injector driver module). The only way youll run 30+psi SAFELY is with the right engine control and pretty much all the engine controls out there for diesel's are blind piggy backs so no matter what happens it will still keep adding fuel. Modules consitantly destroy 5,3, and 7 piston by melting them.

Andrew
certified diesel tech

im sure not all diesels have this problem.
my dad has 2- 97 7.3 and a 04 6.0.the 97 has 300k on it,module(50/75/100 selection)5" exhaust,airraid intake and propane injection.the 04 has the same mods w/50k on it and neither have had any problems(besides the 04 needing the factory recall parts)

 

[Morphius]

Stock HO 5.9L Cummins in the Dodge Ram runs 32psi. According to Cummins boys, the turbo/motor can handle upwards of 70 psi.

 

[Morphius]

yeah I should have said fuel,I just finished my diesel certifacations for ford and I wanted to share with you the specs on a new ford diesel. 18.0:1 with high boost is unbelivable, I was going to see how long it took but chris answered it for you
Andrew

It's about time Ford stepped up to the plate.

 

[awd4g63]

It's sad that Ford diesel trucks can rival their own big, butch, american muscle car with a few psi of boost. There's a guy locally here that runs 8.7s-8.8s with propane, exhaust, and boost in the eighth mile.