turbo questions
- Thread starter maxpayne
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Big Top Gt
Member
The short answer is yes, a turbo is better than a centri blower.
The long answer speaks to why it's a better long term solution.
Here are several things I considered before I made the switch on my 98 Cobra.
There are some down-sides, too. Like the additional weight of the plumbing/turbos, often complicated oiling setups, heat issues to deal with, space under the hood limitations, etc...
Right now, I've got a Saleen blower on my 05 and like it. It's a good compromise. Nearly off idle throttle response and low maintanence make it a win for a daily driver.
Honestly though, If I had the cash on hand I'd throw a turbo on this one, too.
The long answer speaks to why it's a better long term solution.
Here are several things I considered before I made the switch on my 98 Cobra.
- No excessive wear on the crank. A belt driven from the crank to turn a supercharger puts additional stress on the snout of the crank.
- When you're not in boost, the turbos are spinning. They don't require parasitic HP drain 100% of the time like a supercharger does.
- More immediately useful power gains. A centrifigual blower doesn't usually come on until well over 4000 rpm. In a car with a 6000 rpm redline, it's a narrow window of additional power. Properly sized turbos will give you more power, sooner.
- You don't have to change a belt or a pulley for more power. More horsepower is only the "twist of a knob" away. Since a turbo is driven by the expansion of hot gasses, you'll never throw a belt.
There are some down-sides, too. Like the additional weight of the plumbing/turbos, often complicated oiling setups, heat issues to deal with, space under the hood limitations, etc...
Right now, I've got a Saleen blower on my 05 and like it. It's a good compromise. Nearly off idle throttle response and low maintanence make it a win for a daily driver.
Honestly though, If I had the cash on hand I'd throw a turbo on this one, too.
1) I am a turbo guy! My car will have twins on it someday (damn lack of money...)
2) You can get great turbo kits AND great blower kits.
3) You can get crappy turbo kits and crappy blower kits.
If you get a high quality kit, it doesn't matter too much if you go turbo or blower, both will provide a good, safe boost in performance. For your run of the mill daily driver type of power levels (450rwhp or so), I really don't think you will go wrong with either choice.
But I'm still going turbo...
2) You can get great turbo kits AND great blower kits.
3) You can get crappy turbo kits and crappy blower kits.
If you get a high quality kit, it doesn't matter too much if you go turbo or blower, both will provide a good, safe boost in performance. For your run of the mill daily driver type of power levels (450rwhp or so), I really don't think you will go wrong with either choice.
But I'm still going turbo...
DirtyDogOfTheDesert
Senior Member
Better is only a matter of opinion.
I personally really like my centri.
I good friend of mine has a 76mm hellion on his '05 mustang, and didn't like the way it was all or nothing. The heat was unreal, and the car is a dog, until it ................finally...............builds some boost.
In the end it comes down to what you personally like, and what you're using the car for.
I personally really like my centri.
I good friend of mine has a 76mm hellion on his '05 mustang, and didn't like the way it was all or nothing. The heat was unreal, and the car is a dog, until it ................finally...............builds some boost.
In the end it comes down to what you personally like, and what you're using the car for.
forensicsteve
Aggie Dad
Very happy with our turbo, but could have got to the same place with the right supercharger setup. Sizing a turbo for a specific application is very important. Interesting that Dex downsized. MMFF recently noted that it is better to undersize than oversize. Bigger is definitely not necessarily better with turbochargers....depends how you are going to use it.
tis interesting eh? hehe
I drive mine on the street and with a T76 you really had to get on it and I didnt like that so much on the street. I went with a Borg Warner S366. These BW's and kickin all the GT series ass'. Waiting on a little engine work and then I'll see what she can do.
I drive mine on the street and with a T76 you really had to get on it and I didnt like that so much on the street. I went with a Borg Warner S366. These BW's and kickin all the GT series ass'. Waiting on a little engine work and then I'll see what she can do.
Freaknazty
KEYBOARD NINJA
yea sizing deff matters with my 67 i make full boost ( 11psi ) around 3700 but have 5psi at 3000 but key word but that was when i was running a 26" tire and 3.90 gears with a 3.55 gear and 27/28" tire you will be in boost alot sooner , and im not to sure about dex's setup but the powerhouse doesn't really have an excesise amount of piping and the oil setup is very simple and actually makes changing the oil alot easier but if your just looking to get to say 500 go with a 60/61mm turbo and it'll spool a shitload faster and still get you to the 500 mark , as where the 67mm will get you to the ahhhhh 600 mark maybe more depending on setup and steve's 76mm will get you to the 7/800 mark but the bigger the turbo the longer the spool time , something to keep in mind though is how often are you under 3k rpms at the track ? fuck i launch at 4k lol , another thing is your gas milage will increase if you can manage to not get on it at every light lol
i know with the help of thump rrr the belt issuses have gone down drasticly but ive just heard to many horror storys of shreaded belts n shit and if i wanna run 18psi instead of the 11 i load the tune and push a button waa laa from 11 to 18 from in the drivers seat lol
i know with the help of thump rrr the belt issuses have gone down drasticly but ive just heard to many horror storys of shreaded belts n shit and if i wanna run 18psi instead of the 11 i load the tune and push a button waa laa from 11 to 18 from in the drivers seat lol
love my turbo.... full boost by 3200-3400 rpms, easy to change boost, heat has not been noticeable, and lots of power.. i was shocked at the last dyno day, 555rwhp and 590rwtq at 14psi (on drag radials also!). I definitely wouldn't go bigger unless i wanted 700+ hp for a track car, this size fits our motors perfectly
US-1
Banned
Yes. Buy two of them.
US-1
Banned
I don't bother with anything "Jay Leno". Sick of hearing about it. That fucker is the President and CEO of the "More Money Than Brains Club."
Androdz
Banned
Dex remember there is much more to turbos than just selecting ball bearing or journal bearing. There are different impeller stages, combinations and such that do apply to that not to mention different a/r will affect it immensely. Not to mention different impeller designs and such and not to mention hta and/or vtg turbos. For example a friend of mine has a t-88 on a 2jz (3 liter) and it works perfect for the street. It is all about the combination and the compressor map of the turbine.
andrew
Love my new set up ,
Precision 78mm ,, Yes thats right I said 78mm , and The car spools up about 300 RPM's sooner.
I read the MMFF article, but the article is not comparing apples to apples .
A 67mm Turbo comes standard with a .81 a/r , the comparison they used was not fare in my opinion. The 76mm Turbo had a .96 a/r. They should have switched the a/r on the 76mm to a .81 and ran the comparison . I gaurantee you there would have been barely any difference in spool up but power would have been better on top with the 76.
The set up is the most important factor,
Exhaust , a/r housing, converter, rear gear ratio. They all play a big part in the spool time.
Pete
Precision 78mm ,, Yes thats right I said 78mm , and The car spools up about 300 RPM's sooner.
I read the MMFF article, but the article is not comparing apples to apples .
A 67mm Turbo comes standard with a .81 a/r , the comparison they used was not fare in my opinion. The 76mm Turbo had a .96 a/r. They should have switched the a/r on the 76mm to a .81 and ran the comparison . I gaurantee you there would have been barely any difference in spool up but power would have been better on top with the 76.
The set up is the most important factor,
Exhaust , a/r housing, converter, rear gear ratio. They all play a big part in the spool time.
Pete
so let's say 4:10 it'll spool faster tan with the stock gears?
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