I guess only time will tell than. How can you say the charger is better for the car. Its using power to make power so were making boost at 1000 Rpm all the way to redline rather than making power at say 4-5 k to redline and gradually increasing boost with the exhaust gas. So please explain how the S/C would be yeild better results? If u check the FI section someone just made 404 at 10 psi. Now if most sc cars are making around 350 we will say with out a headgasket in play. How can you possibly say that with the gasket over 500 is not feasable?


You say you know tech details? Whats there to know the weights of the rods? Im happy you have educated your self about your own car..

You have owned it for 3 years. ........ Thats great ive owned it for a month does that mean I know less about it? IM ure you can check with bigurp about what I know about the car.... Considering I was standing there as his turbo kit was being built and tunned.


Ive been around imports since 97 so? DOesnt mean anything Bottom line is its what you know im sure i will make mid 550 on race gas no problem and reliable. Ive built everything out there from skylines to glorias nothing diff.....


I just want to know if people are making around 350 on a stock head gasket why isnt over 450 feasable with a gasket that lowers your comp to 8.8?

 

but your missing the difference between a twin screw or roots blower style S/C and a centrifugal S/C... all the S2K s/c's are centrifugal which only make good power after 7000 rpm's.. wheras a turbo will make it soon after 3000 rpms... so a turbo is putting more overall stress on the S2K motor...

now a twin screw or roots will put more stress on a motor at an extremely low rpm... but thats not what were dealin with...

its feasible... Inline Pro sells their turbo kit with a 3mm head gasket lowering compression to the 8.x:1 range... and is making ~440whp at ~18psi...

reliability is still a question...

 

Any charger puts more stress on the motor like I said your always in boost. I dont konw how you guys drive your turbo cars but its very simple not to hit boost on turbo there for n abuse at all. And when the comp is lowered boost will kick in later there for giving you great gas mileage and saving your motor for only when u wanna open it up

 

Only logical explination on why the s/c would be better for reliablility is because it is a lower temp forced induction thats about it. There are a bunch of way to lower the EGT with turbo.


440 yes who knows how reliable it is only the person who tunned the car knows that

 

[QUOTE=Fyrestrike,Nov 6 2005, 05:51 PM] That's what I thought, some reading and searching around this site will save you some money.

 

Very nice numbers on the charger. So thats not 370 like I said thats over 400 now and with 10-1 compression not even as low as im going. So the 8-8 should have no problem making 500 whp. As long as you got a solid tune your good. Take the B series honda"s most people boost 7psi on a stock motor but than there are others who boost 10 with no problems for years and make nice power. Not saying our motors are close to the B series but same principles tune it right it will love you long time.........Keep the bitch cool and wet thats the name of the game

 

Well, didnt Inline Pro run something like 516rwhp w/ the 3mm and beat the piss out of it for like 6 months and the car was still standing at the end of the trial?

I went w/ the 2mm gasket for a number of reasons, one of them being for added torque since the charger has a limitation on impeller speed im getting a max of around 12psi w/ FMIC loss. But now that I see what its capable of, i think its time to part and go turbo I still want more low-end grunt and may have to go back down to 9-1 compression.

I don't see why it couldnt be done w/ proper engine management.

 

I never said it was better, I said it puts far less stress on the motor.

Centrifugal S/C's do NOT make boost at idle, please educate yourself.

See above.

YES! I think you're finally catching on!

If you were there, then I'm sure you know how much it costs to get the numbers you want out of an S2000 motor.

I'm glad you think there is no difference between extracting power from an S2000 motor and from a Skyline motor.

It is feasable, but it won't be reliable.

 

That's what I was getting at. There is no point in extracting alot of power out of a motor that won't be reliable. It's easier to do it right the first time.

 

I dont think bigurp would like me to post how much it cost him to build his motor. but thats besides the point. Actually making power from a skyline and the s2k are very similar same principles with any car to make power play with timming a/f and cam timming same thing you would do to these cars. Please tell me how you owning a car for 3 years makes you more knowledge able about the car than me? If the tune is good at 450 whp should be very reliable