reliability of a boosted car

[370hpz28]

what kind of reliability do some of yalls boosted cars have??? i know that it has to go down, unless you build the bottom end...

mike

[BRAK]

Honestly there are really HARDLY no turbo GT-S's, but the GT's seem to living good with 6 psi, wctoyotasport.com is making a turbo for GT with 6 psi , and they said it will last just as long as the non boosted ones.

[2002GT_Celica]

If a car is properly maintained and given a logical amount of boost, the longevity of the engine will most likely not fall that much. In fact, I read somewhere that if a engine is exposed to forced induction, but taken care of meticulously, the engine will live 90% as long as if it had never been boosted.

[Da Kine Guy]

Well, being an owner of a boosted factory car and talking with various other owners and doing research, it depends on the car. a DSM will last you until about 140k well maintained, then you need to get dirty and replace some heavy stuff. The mkIV TT has one incredibly strong bottom and top end. Kept stock, the 2JZ will probably last just about as long as any other Toyota N/A car.

Hehe, now to my car. I bought my mkIII with 86k on it. Around 80k is when most head gaskets on this car blow, as mine did. I got the head off and engine apart right now and just recieved my gaskets and seals with a new timing belt, PS rebuild kit, and new water pump yesterday. The head gasket replacement I got from Toyota is definately a different design currently, which I suspect is because the massive BHG's being fixed on these cars. Other then that, the rest of the engine is extremely well built. Honing marks are still on the cyl walls at 86k, camshaft area is spotless, even with the BHG the engine was very quiet and ran very smoothly. I was lucky in that my blow was only between the cyl and coolant line, so no oil damage was done. On the boards and websites there are turbo mkIII's with miles well into the 190k region. If it weren't for the damned headgasket problem the mkIII would be just a reliable as a mkIV.

Oh well, most mkIII owners know why the gaskets are blowing anyhow, from the factory the head bolts just weren't torqued down hard enough. Factory spec is 58 ft

[370hpz28]

cool.... that sounds great.

mike

[Camry2000]

My friends and I are running 4PSI on our Camrys/Solaras. A handful of people are running 6psi and 7psi with all stock internals. No problems after 18+ months of hard driving.

[apexsw20trd]

Originally posted by 370hpz28
what kind of reliability do some of yalls boosted cars have??? i know that it has to go down, unless you build the bottom end...

mike

mr2 turbo running at 14psi, stock intercooler with spal puller fans for better air flow, ceramic ct26 turbo with upgraded trim, fuel cut defenser set at 14, apex'i dual ram induction with heat sheild, gutted primary cat and no secondary cat,,,i dont have my upper or bottom end built , its purely stock and th 3sgte can handle 350hp with no problems. with a supra fuel mod with 550cc injectors and a safc and vpc i can push out over 300hp to the wheel and with all this the bottom and upper is still stock.

turbo's are very reliable and will last as long as if you take care of it. regular maintenance like synthetic oil changes , cleaning the filters and also checking vacuum and hose lines are critical in exceptional turbo performance.

by the way i outrun z28, can hang with ss, can hang with m3's,and can outrun tb's and mustangs 5.0, and hondas i dont even bother with. :)

[370hpz28]

well considering that the z28 and SS is the exact same thing......

and i put the 5.0 in the same league as hondas lol

mike

[Da Kine Guy]

Originally posted by 370hpz28

and i put the 5.0 in the same league as hondas lol



:rofl: HAHAHAHAHAHHAHAHAHAA :rofl:

[2002GT_Celica]

Umm...comparing cars that come with a turbo stock to a Celica turbo is pointless. Cars with a stock turbo usually have an ultra-low compression rate, whereas the GT has a semi-high compression rate. Nevertheless, if a turbo is well-maintained, you should still have plenty of engine longevity.

[HilfigerCelica]

Originally posted by 370hpz28
well considering that the z28 and SS is the exact same thing......


mike

No sir. They are both Camaro's but they aren't the same exact car. The SS has 15 more hp's and various comestic differences.

[370hpz28]

HILFIGER:

LOL .... YOU DO NOT KNOW YOUR CAMAROS. HAHAHHAHAHHA

the ss, z28, trans am, formula, ws6,and C5!!! have the exact same motor. and since the car is TOTALLY underrated, they can say that the car can go all the way from 305-360 hp.... because it is all true :) 360 from the factory.... the ss has a better flowing exaust that gives it about 5-9 hp over a bone stock z28... but a 30$ cutout will boost the z28 15 hp :) and the ss will only be boosted 6-10 hp with the addition of the cutout.....

EXACT same motors....

mike

[370hpz28]

anyways!!!.......

lol...

i like the idea of a boosted car... and i have not had any experience with "suped-up" four cylinders.... i would like to see what these cars can do..... ( knowing about them and how to make them fast) and seeing how good they handle and stuff like that..... its just so hard to believe that these things handle better than my car--- although i know that they do. must be a blast to drive through the turns :)

mike

[370hpz28]

hilfiger celica.....

see that is sort of my point of why i dont like the import scene....you look at the SS and a z28 and you see cosmetic differences.... i look at the SS and Z28 and i see two identical cars because they have the same motor and almost identical bodies.... ss has scoop on hood... and swirvy tail spoiler.... not much of a difference. the import guys seem to be concerned about spoilers, ground effects, swirvy tail spoilers, and clear lights..... wereas the domestic crowd see a 5.7L v8 motor.... then they hear it... then they LOVE it. it seems to me if you are more mechanical minded and sound oriented then you will go with v8.... but if you like to impress by looks, and style, and dont really care what your car sounds like... just as long as you get to go to town and hang with all your buds... then you will buy the import. ( i dont mean that this is true for eveybody but rather just "most" of the people)...( because i know that there are some seriously "mechanically" minded people on this board lol )

and as far as 15 horse power being the difference in SS and Z28--- even if it was..... it would still be AAAALLLLLLLLLLLLLLLLLLL driver.
ok... im done ranting... lol

[Da Kine Guy]

The Supra is an import

I doubt the first thing that comes to mind is the big wing when most ppl see them :D

[Dealer Xing]

I have a 93 Subaru legacy turbo with 14xxxx miles running 7psi of boost with no problem. No smoke, strong boost, stock turbo, no oil leak and extremely low emission.

[Maelfyn]

Originally posted by 370hpz28
the import guys seem to be concerned about spoilers, ground effects, swirvy tail spoilers, and clear lights..... wereas the domestic crowd see a 5.7L v8 motor.... then they hear it... then they LOVE it. it seems to me if you are more mechanical minded and sound oriented then you will go with v8.... but if you like to impress by looks, and style, and dont really care what your car sounds like... just as long as you get to go to town and hang with all your buds... then you will buy the import. ( i dont mean that this is true for eveybody but rather just "most" of the people)...( because i know that there are some seriously "mechanically" minded people on this board lol

I can partially agree with what you are saying. Your average import owner contrasted with your average domestic owner are going to be very different people, but both are car enthusiasts nonetheless.

As far as boosting a ZZ series motor, don't get too excited about it. It is not a good choice for boosting. And anytime you start compressing oxygen for more powerful cylinder explosions (read: cylinder pressure), you can expect reliability to go down. The more you are compressing, the less reliable it becomes... long term and short term.

In addition, using a turbo is just adding more parts to your car, which means more things that can go wrong. So yeah, on average a turbo will ultimately mean a less reliable car. Toyota and Honda have no production cars with forced induction, which gives them an image of reliability... but the downside is they lose their performance image a bit too.

Just look at what the Subaru WRX has done for Subaru's image. Before it was a lesbian sympathizer image and the general population thinks the car is made in Australia (thx Paul Hogan)... and oh yeah.. they do some rally racing too. Now it's the other way around.

[t2000gts]

doesn't the SS handle better than the Z28 too? or are they identical there too?

if not, what the hell is the point of the SS?

[Dealer Xing]

Toyota only has no production cars in US that don't have Factory Turbo, please be specific.

Examples of factory turbocharged models are: Toyota Chaser, Supra, Aristo, etc......

[370hpz28]

cool.... i want to see some of the boosted cars up close somtime... im going to make a trip down to the dragstrip on thursday, and see them. i never have been around them. but you sure can hear them on the street. i do not like the 4 cylider exaust note- but if they have a turbo on it.. it makes a glorious sound :)


the SS does have slight suspension components on it... but not near as good as the aftermarket. it does handle an inch better. :)
its really really not worth it in my book :) most people end up tearing all that crap out anyways and getting new stuff. :)


mike

[370hpz28]

maeflyn....

that is sooooo true about subaru....lesbian sympathizer.. LOLOLOLOL hahahha

mike

[celica gte racing]

well the problem with the american import scene is the gap between what these imports are built for and what american consumer race it as. For example, Hondas. Honda is globally recognised to be a top brand in performance cars, however in the United States it has created many haters because of some of its` drivers ways. It is a common misconception that more cylinders are better. Let me explain how a I4 can be considered superior to a V8, notably in Japan. Japanese Performance cars, especially in its domestic form, are built to lap a tenth faster if possible on a circuit (or road course as some Americans like to call it). Hence, there is an obsession about chassis development, suspensions, brakes and everything is taken account as a whole. So what will happen if you mount a large, heavy V8 engine as a FR setup (front engine, rear wheel drive), 1st, it will destroy the cars handling as it will create a very unoptimised weight distribution. Second, it will add additional weight, weight being a huge factor on a cars handling. So why would you mount a big heavy V8 when you could use a lighter, more compact I4 which would lose to the V8 in a straight line acceleration but would give a advantage on breaking and corner which would just pros out weigh the cons. This is a major theme in the celica as its handling is probably the sharpest in the FF class, its light, the engine is compact and light, at the same time powerful.

So it is obvious for a muscle car to beat a Japanese sports car in quarter mile. however, It is fair to say that a Celica would outlap all muscle cars on most technical circuits perhaps in exception of the viper and the high end corvettes as the latest generations seem to have improved considerably.

In my opinon, Japanese sports cars, such as Skyline GTR, NSX type-R(brand new, just came out in japan), RX-7 RZ are perhaps the fastest lappers in the world, even in its stock form, even with its 280hp limit. Unlock their potential and you will soon find near-race-spec cars which will be the fastest road legal cars in the world.

now to the cosmetics. Until recently, import tuning was undiscovered and only took place in japan. It is interesting because bodykits, generally accepted as purely esthetic rather than fuctional in the US, in japan it is commonly refered to as "aerodynamic packages". As the Japanese tuning culture progressed as it lapped ever faster, aerodynamics became more and more important to shave off tenths off the laptime. Bodykits were used not only for downforce, but the channelling of air to the engine bay to cooling, induction, as well as the challening of air to brakes. Today top marques (ie Mugen, Blitz..) Test their bodykits in wind tunnels. GT wings are an essential aerodynamic element to corner faster. Rims sizes are moderate 17 for slower and 18 for faster cars. the best trade off between weight, and handling is taken.

To give you an Idea of what this is all about, let me tell of approximative and comparative laptimes different cars lap, and perhaps you will understand why power is not as essential as in drag racing. I do not know if you are familiar with "Tsukuba" circuit in japan. It is not a long circuit but it comprises many technical and variations of curves and corners. Tuners make their reputations there. even manufacturers. I have been there a couple of times, and also read, and watched many comparative videos, so i have an idea of how fast cars lap there. So. Lets think of a fast car... Ferrari 360 modena for example how fast would it lap? Tested against a Porsche 911 GT2, it lapped in the low 1m04seconds, as did the porsche, both 400hp class monsters. Cars such as The skyline GTR Vspec2 laps at about high 1m04 stock with 300hp. EVO 7 RS, NSX and RX-7 RZ lap at similar times. the new generation NSX type-R will lap low 04 or high 03 as it is has improved considerably. A lamborghini diablo laps at 1m06seconds and so will a dodge viper. Incredible but true. laprecord so far taken by cyberevo at 56.8seconds.

I feel that it is unfair american muscle and japanese sports as they are built for different type of performance, and they both do a good job about it...

Originally posted by 370hpz28
hilfiger celica.....

see that is sort of my point of why i dont like the import scene....you look at the SS and a z28 and you see cosmetic differences.... i look at the SS and Z28 and i see two identical cars because they have the same motor and almost identical bodies.... ss has scoop on hood... and swirvy tail spoiler.... not much of a difference. the import guys seem to be concerned about spoilers, ground effects, swirvy tail spoilers, and clear lights..... wereas the domestic crowd see a 5.7L v8 motor.... then they hear it... then they LOVE it. it seems to me if you are more mechanical minded and sound oriented then you will go with v8.... but if you like to impress by looks, and style, and dont really care what your car sounds like... just as long as you get to go to town and hang with all your buds... then you will buy the import. ( i dont mean that this is true for eveybody but rather just "most" of the people)...( because i know that there are some seriously "mechanically" minded people on this board lol )

and as far as 15 horse power being the difference in SS and Z28--- even if it was..... it would still be AAAALLLLLLLLLLLLLLLLLLL driver.
ok... im done ranting... lol

[gh0stCelica]

I say it's all about respect. Too many people are like domestics suck @ss, no imports suck @ss. It's true they are two different things, but who cares!... a tight @ss car is a tight @ss car no matter what. I'm into the import scene, my friend is into the domestic scene. We always sit around and talk about cars and never have gotten into any dispute about domestic vs. import. He has a 305 El Camino v8 and have my little celica I4. I did race him once in my old car ('91 teg) and beat him pretty good, but his is an auto and pretty old... so that's that. Anyway... I want a turbo... boost is good! see ya

[Keyshawn]

Originally posted by gh0stCelica
I say it's all about respect. Too many people are like domestics suck @ss, no imports suck @ss. It's true they are two different things, but who cares!... a tight @ss car is a tight @ss car no matter what. I'm into the import scene, my friend is into the domestic scene. We always sit around and talk about cars and never have gotten into any dispute about domestic vs. import....

Very, very good point! It's very unfortunate that some people are just NOT mature enough and/or intelligent enough to look at it this way.

[Griffin]

Lets face it - mullets driving Irocs gave GM performance cars a bad image, but the Z28 6speed is quite a nice bang for the buck. I wonder if they still offer teh autocross package for it? It supposedly helped the handling considerably when you ordered one with it.

That being said - I hate domestics, but just because every one i have ever owned has been an unreliable peice of ish and has cost me tons of money and time. and a pain in the butt to work on.

Griffin