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Old Jun 5, 2007 | 02:57 PM
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Default Twin turbo

Hey i have been thinking about doing a twin turbo installation in a couple months so wanted to find out more...

So I see the lingenfelter one is 25k installed.

Looking at the STS kit though its 9k, does anyone know how much a quality install is?? I mean i understand the difference in the 'name' but horsepower wise its the same, and if installation is only like 5k, then its not worth the extra 10k(to me) for just the added warranty on the parts...


also WHY is the supercahrger lingfelter SOOOOO MUCH cheaper for the same horses???!??!


Lastly, the only thing I'm worried about is reliability. I plan on having this car for atleast 5-6 years and its daily driver,which i will be putting prabably between 10-15k on a year. Is the car still reliable?
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Old Jun 5, 2007 | 03:00 PM
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I think most people would recommend APS or TTi over STS. I have been looking at twin turbo also. I was insterested in STS because it would pass CA smog but several people told me not to go that route and that I should go with either TTi or APS.
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Old Jun 5, 2007 | 03:14 PM
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The APS system can be had for around $7k plus install...
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Old Jun 5, 2007 | 03:23 PM
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Originally Posted by kyle0k
Hey i have been thinking about doing a twin turbo installation in a couple months so wanted to find out more...

So I see the lingenfelter one is 25k installed.

Looking at the STS kit though its 9k, does anyone know how much a quality install is?? I mean i understand the difference in the 'name' but horsepower wise its the same, and if installation is only like 5k, then its not worth the extra 10k(to me) for just the added warranty on the parts...


also WHY is the supercahrger lingfelter SOOOOO MUCH cheaper for the same horses???!??!


Lastly, the only thing I'm worried about is reliability. I plan on having this car for atleast 5-6 years and its daily driver,which i will be putting prabably between 10-15k on a year. Is the car still reliable?

I was looking into this too, and if I were to do it, I would go with STS because of the clean install and the CARB cert. I called several people who have the system and they really like the way it responded, like a N/A car below 2-2.5K RPM, and came on really smooth. It would also be easy to remove if you needed . Several people have installed the kit themselves since it is easier than a front system. I also checked on install prices and it runs around $1200-1500 depending on who you go with. After I added it all up with injectors, tune, boost and A/F wideband gauges, it was somewhere between $10-11K if I installed it myself.

As far as reliablilty goes, you're boosting a high compression engine with cast pistons, so you take your chances. I would ask that question over in the C5 FI section as they have been around longer and maybe someone over there can answer that question better. Good luck!

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Old Jun 5, 2007 | 05:00 PM
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Originally Posted by turbo_tom
The APS system can be had for around $7k plus install...
You mean more like $7995 Plus Shipping
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Old Jun 5, 2007 | 05:02 PM
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With the Lingenfelter package you are getting a lot: heads done, ported t/b & intake, and the set up 1st class (battery relocation, top of line parts, etc). Plus the warranty.

That said - you are still paying a premium, but their work speaks for itself.

Concerning the difference s/c vs tt: both (m122) claim 600 hp, but torque is greater with tt. Also, I would summize the overall performance of the tt is better (I say this even though I will be going with their s/c package).

There are tons of threads and people here who have gone the centrifugal blower path with great results, reliability, and for under 10$k. There are plenty of sponsor vendors who get nothing but rave reviews.

Also plenty who have had great results with turbo units for around 10k$.

I spent a very long time researching all the systems (tt, roots blower, centrifugal blowers, and n/a - 403, 427). It boils down to what you want: I wanted low end torque & response, and I for some reason I have always wanted a roots blower just because it looks cool - go figure .....

There are enough options where you can find one you will be more than happy with
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Old Jun 5, 2007 | 05:02 PM
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Originally Posted by valdeztke
You mean more like $7995 Plus Shipping
No more tuner special...?

Oh well, $8k plus install.
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Old Jun 5, 2007 | 05:27 PM
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Ok ok, well Yea i am deffinatly going to go with a TT and not suprecharger, just because thats something 'ive always wanted as a kid'

I think all I would get is like the APC or STS TT kit and Longtube headers and I woudl be done.(plus a moderatly conservative tune). So I woudl expect for around 530-550 RWHP ou of that with 5PSI, is that right?

I remember hearing that our engine handle up to like 600 horses without comprimizing reliability to much.

Turbo_tom, how long have you had yours installed? How much do you like it? Has it been 'reliable'? Also would u think it comprimises the vette from being a daily driver.

Thanks everyone!
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Old Jun 5, 2007 | 05:37 PM
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Originally Posted by kyle0k
...Turbo_tom, how long have you had yours installed? How much do you like it? Has it been 'reliable'? Also would u think it comprimises the vette from being a daily driver...?
I have had my APS kit installed since last July/August. I absolutely love it. The setup has been rock solid in terms of reliability and never let me down. As far as the car being a daily driver, you would think it's supposed to be this way from the factory. The APS kit on an otherwise stock C6 is 100% civilized for daily use... I try and drive mine every chance I get.
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Old Jun 5, 2007 | 05:59 PM
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Originally Posted by kyle0k
Ok ok, well Yea i am deffinatly going to go with a TT and not suprecharger, just because thats something 'ive always wanted as a kid'

I think all I would get is like the APC or STS TT kit and Longtube headers and I woudl be done.(plus a moderatly conservative tune). So I woudl expect for around 530-550 RWHP ou of that with 5PSI, is that right?

I remember hearing that our engine handle up to like 600 horses without comprimizing reliability to much.

Turbo_tom, how long have you had yours installed? How much do you like it? Has it been 'reliable'? Also would u think it comprimises the vette from being a daily driver.

Thanks everyone!
Can't run headers with the APS kit and if you do for some off reason want to run headers with the STS kit you are going to lose heat along the way through the longtubes and you'll be in a world of turbo lag.

You aren't going to see 500rwhp out of 5psi. Maybe 500 at the crank, but why even go TT in that case Open her up to at least 7psi.

Just make sure you do some serious homework, use the search button, and ask all the questions you can - even if they sound dumb.

Best of luck with your TT goals.
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Old Jun 5, 2007 | 06:04 PM
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Old Jun 5, 2007 | 06:27 PM
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Originally Posted by kyle0k
Hey i have been thinking about doing a twin turbo installation in a couple months so wanted to find out more...

So I see the lingenfelter one is 25k installed.

Looking at the STS kit though its 9k, does anyone know how much a quality install is?? I mean i understand the difference in the 'name' but horsepower wise its the same, and if installation is only like 5k, then its not worth the extra 10k(to me) for just the added warranty on the parts...


also WHY is the supercahrger lingfelter SOOOOO MUCH cheaper for the same horses???!??!


Lastly, the only thing I'm worried about is reliability. I plan on having this car for atleast 5-6 years and its daily driver,which i will be putting prabably between 10-15k on a year. Is the car still reliable?
Supercharger set ups, especially manifold mounted roots blowers, usually have less parts and are easier to install than front mounted TT set ups. Most likely this is why it is cheaper.

You say you plan on keeping the car for 5-6 years and want reliability. Well let me ask you something. Is that extra $5k+ worth it to you? To me that is a no brainer, but piece of mind is expensive.
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Old Jun 5, 2007 | 06:40 PM
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Yea i realized the headers thing after lookins at the APS kit .

Yea I guess Im not too worried about 5psi or 7psi because I would buy an electric boost controller that I can switch from high to low(my friend has one of those for his turbo car) hmmmm, how would the tune work with me wanting to have something like that....


I'm a little confused on how much power something like this would give me(aps kit for example). I saw other people reporting 550+ rwhp with 7 psi.

Also, I'm guessing warranty would be voided in all aspects? Or are there still some parts that would still be covered( or dare I say some dealers that will turn there backs on it)
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Old Jun 5, 2007 | 06:42 PM
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Originally Posted by k0bun
Supercharger set ups, especially manifold mounted roots blowers, usually have less parts and are easier to install than front mounted TT set ups. Most likely this is why it is cheaper.

You say you plan on keeping the car for 5-6 years and want reliability. Well let me ask you something. Is that extra $5k+ worth it to you? To me that is a no brainer, but piece of mind is expensive.
Yea after more research I realized why its so much cheaper.

Well I mean its not just 5k , i can get an apc plus install for around 9100, so its actually like paying 16k for the satisfaction of having warranty on parts that arent expensive(its jsut warranty on the setup, i can replace the whole system in those three years and it will still be chearper!)
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Old Jun 5, 2007 | 07:16 PM
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Originally Posted by k0bun
You say you plan on keeping the car for 5-6 years and want reliability. Well let me ask you something. Is that extra $5k+ worth it to you? To me that is a no brainer, but piece of mind is expensive.
Is it really peace of mind, though? Think about it... You get the Lingenfelter TT with a warranty. BOOM goes your engine next week... you live in Nevada. Now what? Ship the car back? This is your DD... oh well. That's more of a PITA than peace of mind, but it should be free under warranty, so that's nice.
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Old Jun 5, 2007 | 07:23 PM
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Originally Posted by KMK454
Is it really peace of mind, though? Think about it... You get the Lingenfelter TT with a warranty. BOOM goes your engine next week... you live in Nevada. Now what? Ship the car back? This is your DD... oh well. That's more of a PITA than peace of mind, but it should be free under warranty, so that's nice.
Doesn't LPE have certified installers closer?
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Old Jun 5, 2007 | 07:40 PM
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uhhh the warranty is on their parts, so a blown engine wouldnt exactly be fixed by them....
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Old Jun 5, 2007 | 07:54 PM
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Originally Posted by kyle0k
uhhh the warranty is on their parts, so a blown engine wouldnt exactly be fixed by them....
Ah, my mistake, but then even better to save the money than go with their warranty at extra cost...
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Old Jun 5, 2007 | 08:45 PM
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Also Moving to the west coast means the highest available octane is 91, is that good enough for twin turbo??
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Old Jun 5, 2007 | 09:13 PM
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APS kit here, have had it for about 4 months now, its simply Amazing

They did have the special when I got mine, APS had a sale for the first 15 kits bought, not sure if retail pricing is back in effect now, but I can say nothing but good things about the system, the quality and the performance, its a BLAST to drive & I wouldn't recommend any other system besides APS, its the C6 choice for most of the forum guys vs the STS kit, from what I've read

Figure about $11K for Full Kit, install & dyno tune if you stay with the stock clutch, another $1500-$2K if you upgrade clutch & expect HP #s around 510/520RWHP at 7psi and 560/575 at 9PSI for 6 speed, Auto trans are set at 6.5PSI

PM me if you'd like to discuss more
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