I finally decided to go turbo cause it's adds alot of power and I can buy it in the half of the price! But I am wondering how reliable it is? For example how many hours can I run with 7000rpm (germany2002)? Will the engine suffer if I go for a 300km trip? I am very good owner and I change oils every two months. For example with my stock S2000 I can go with third gear and 7000rpm for one hour, and go for a 350km fast trip with no ovearheat problems! Now I think that with the turbo I must be more carefull. Could you please all the turbocharged-cars owners tell me if I'm wrong or not?

 

 

could u please explain to me why would u want to take a trip at 7k rpm's...that kind of driving isnt the greatest for engines..why not just throw it in 6th and cruise at like 1.5k rpms??anyway id say for the driving u do turbo wouldnt be a good idea as u would be keeping the car at full boost almost all the time since u have wonderful driving habbits...

 

if you are going to do this ridiculous sort of driving i would go for a supercharger, they make less heat than a TURBO. but i would not drive at 7000 rpm for any long huge period of time unless you build it properly. until then i suggest you just shift your engine and tranny will thank you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by orange.honda &raquo;</TD></TR><TR><TD CLASS="quote">if you are going to do this ridiculous sort of driving i would go for a supercharger, they make less heat than a TURBO. but i would not drive at 7000 rpm for any long huge period of time unless you build it properly. until then i suggest you just shift your engine and tranny will thank you.</TD></TR></TABLE>

You mean shift your tranny and engine will thank him?

Cruising at 7k isn't a good idea in any car...

 

sorry i missed a comma. thanx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by orange.honda &raquo;</TD></TR><TR><TD CLASS="quote">if you are going to do this ridiculous sort of driving i would go for a supercharger, they make less heat than a TURBO. but i would not drive at 7000 rpm for any long huge period of time unless you build it properly. until then i suggest you just shift , your engine and tranny will thank you.</TD></TR></TABLE>

 

Hahaha, that's not what I meant. Nevermind, it was a stupid joke anyway

 

im sorta confused....

 

Its all in the turbo size and how much throtle you give it. For one your engine will suffer anyways if you stay at 7k all the time. You could in theory go the entire life of your car without ever going into boost.

 

id go with the vortech super for something like that, unlike the JRSC its away from the engie so you wont get mad heat soak and unlike a turbo its not powered by the hot exhaust... (but iv felt some of the air from a turbo apexi kit on d16 and the air was damn cool so maybe turbo wouldnt be that bad) but who knows. get a bike and drive at 7000rpms thats a better idea. i dont know any thing im just a newbie

 

I know that this isn't the best way of driving, don't try to learn me how to drive. But that's the only way to understand if the car is reliable. All the engines in the Honda factory are tested like that. I think you have seen a lot of pictures from R&D tests that "close" the engine in a huge test-room, with a huge simulator all around the engine and just pushing it exactly in the rev with the higher torque.(7500rpm I think)

 

I said I'm a good owner. Who else changes oil every month? I've already changed the pistons and the valve springs just for fun! That's how much I love my S. AlsoI would like to correct something: I have done that with my hatch not with my S2k.(I mean the 7k rpm test.)


Modified by BafMan at 8:45 AM 7/20/2003

 

go rite ahead and drive a turbo at 7k rpm wont hurt it one bit...but im pretty sure your motor is gonna go b4 your turbo

 

Turbos decrease reliability/engine life, period.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blah13 &raquo;</TD></TR><TR><TD CLASS="quote">Turbos decrease reliability/engine life, period.</TD></TR></TABLE>

yeah, but everything does... including just plain driving your car.

 

True but a little psi sure isnt helping.

 

turbo done right and i can bet you that it will last longer than an all motor setup

 

You guys are all a bunch of wimps. I fully back up BafMan on his driving habits. He bought a car and he uses it like it's meant to be. He's right, too....if Honda says the engine can do 9000rpms, they mean that that's what it can do for literally hundreds of hours, not once or twice on the weekends like so many people do. I know....I've seen the tests where they hold it at maximum power for hours and hours on end. I've also been driving like that for tens of thousands of miles myself, including racing and delivering pizzas, in the city, and my engines never burned a drop of oil. Hell....I just misshifted and had my GSR engine at 11000rpms. That's almost twice the stresses it was designed for. It still runs....205 compression all around. Stuff's messed up in there, but there's something to be said about the fact that it's even in one piece.

Seriously, if you people are afraid of taking your engines to the max, why do you spend money modifying them so that they put out even more? Maybe you should invest in a Mustang or something...

As to answer your question BafMan, theoretically you shouldn't even be in boost unless you're driving faster than your N/A engine would allow you. Therefore, you shouldn't have any long term reliability problems. This is theory though, I'm not sure how it works in practice....

 

The air from a JR supercharger is hotter and less efficient than a turbo. A turbo non intercooled pushing 6psi vs. a JRSC pushing 6psi, will make more HP. Turbo without a doubt is the way to go. I have a JRSC, and I will be going to turbo. This reliability issue is stupid. If you have oil flow to the turbo, a turbo timer and boost controller, a turbo will out perform and be just as reliable. The Vortech is a nice unit but not as upgradeable as a turbo.
RPM don't matter. Your engine doesn't see boost unless you throttle it. At least that's the way it is with my SC)
T U R B O

 

rpms do matter!

 

note to self add lsos and bafman to the list of cars not to buy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos &raquo;</TD></TR><TR><TD CLASS="quote">You guys are all a bunch of wimps. I fully back up BafMan on his driving habits. He bought a car and he uses it like it's meant to be. He's right, too....if Honda says the engine can do 9000rpms, they mean that that's what it can do for literally hundreds of hours, not once or twice on the weekends like so many people do. I know....I've seen the tests where they hold it at maximum power for hours and hours on end. I've also been driving like that for tens of thousands of miles myself, including racing and delivering pizzas, in the city, and my engines never burned a drop of oil. Hell....I just misshifted and had my GSR engine at 11000rpms. That's almost twice the stresses it was designed for. It still runs....205 compression all around. Stuff's messed up in there, but there's something to be said about the fact that it's even in one piece.</TD></TR></TABLE>

I ran my engine at 5500rpms for over an hour, i blew it up...

 

What I meant, is your car wont be boosting. At least the JR doesn't unless you get on it. I'm not stupid, but does it or doesn't it work the same way with a turbo. I'm still learning little things. So if a turbo is still boosting at low throttle (but possible high rpms)
I also think I went off the center of topic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by altoid &raquo;</TD></TR><TR><TD CLASS="quote">I ran my engine at 5500rpms for over an hour, i blew it up...</TD></TR></TABLE>

Well then...
I retract my post. I retract all my posts. I will rethink and invalidate all my experiences with cars, and all my friends' experiences with cars. I will no longer drive cars.

 

the higher the rpms the more boost is produced because of the supercharger spinning faster. thats y larger pulleys = more boost because of the larger outside circumference of the pulley spins the supercharger more per rotation then the small pulley at the same rpm.

the higher rpms = more gas coming out the manifold= faster spining turbine = more boost. so rpm's do seem important to me.