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Discussion Starter #1
Looking for feedback as I am m

Looking for feedback as I am moving much closer to a twin turbo upgrade to my '86 TR. Would like to hear feedback from owners of TT Tr's in regards to performance and reliability.
Thanks in advance. I too have left Ferrari-chat, too many trolls.
 
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Discussion Starter #2
Watch Out what you wish for. E

Watch Out what you wish for. Except for Koenig all the Ferrari TT 's I've seen, heard about, read about have been less than stellar ie: Hand Grenades.. The PR the turbo installers pump out far exceeds anything they deliver to your driveway.

If you were buying a Koenig Kit and installing it yourself I'd say go for it. Otherwise I think you are asking for expensive disappointment.

What suprises me is that no one tries to take the logical path to a NA Individual Throttle Body FI System with some bump sticks (cams) ground, and an exhaust to make the easy 500HP the engine can easily pump out and LIVE.

just my .02 cents worth...
 
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Discussion Starter #3
JRV

Great minds must think


JRV

Great minds must think alike! I am in the process of doing just that, including a very free flowing exhaust and some other things. I’ll post more when I’m finished. Also if anyone is interested, when I had my cams made by Tighe Cams, here in Australia, they made a second set with the same specifications that are available for sale, if any one is interested they can contact Tighe Cams at http://tighecams.com.au/contact.htm (I have no affiliation with them at all), but they have a great reputation here in Australia. I chose a profile that should easily push power over the 500hp mark along with the other mods, Exhaust etc. without altering the valves or pistons (although I am now replacing my intake valves, due to minute stem ware on 4 valves).
I am currently waiting on the new intake valves from Manley, through Flatlander Racing in NH in the US, when I have completed everything I post a follow up.
In a few months, when I have all the bits and pieces together, I will add individual throttle bodies and a haltech engine management system, with individual injection.

Steve

PS If anyone wants the specs on the cams they can contact Tighe or contact me direct.
 
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Discussion Starter #4
Hi Steve,

don't want t


Hi Steve,

don't want to hijack this thread, but your project sounds exactly like what I would do to extract serious additional power without sacrificing reliability. By all means start your own thread and post pics of your project, very interesting stuff.

Regards, JRV

John,

I was hoping others might chime in, but anyway, the problems imo with these bolt on turbos on the Ferraris at least, is that the cars/systems are not finished in many cases and don't make the claimed HP numbers. Most don't have intercoolers, lower comp. pistons, antiknock sensors wired to a system specific programable computer, o-ringed heads or larger cooling systems for oil & water. Since these bolt-ons don't re-engineer the engine for the specific new way it's being used they managed to make these kits attractive with price. The problems come about because of this lack of re-engineering, reliability suffers(dramatically in many cases). Most Factory Turbos have specific design differences to deal with the additional stresses of Turbo Charging from their NA brothers and sisters. Look at every model Turbo (street) that Ferrari has produced 208, 288, F40 and you will find that the Factory did far more than bolt on Turbos to get the power, while still allowing the engines to live for long periods before overhauls. You can also use Porsche as a good example of Turbo & NA brothers being very different. All that said don't get me wrong, I think some Turbo mods are great. But as a builder I have to force the hard questions out into the open, and those questions all deal with Cost & Longevity issues to produce an Extreme Machine. I think what I'm trying to say is have realistic gain expectations fron TT's, and consider all the additional parts & mods that one needs for reliability when being quoted the "basic prices" from the kit sellers.

Regards, JRV
 
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Discussion Starter #5
JRV: "What suprises me is

JRV: "What suprises me is that no one tries to take the logical path to a NA Individual Throttle Body FI System with some bump sticks (cams) ground, and an exhaust to make the easy 500HP the engine can easily pump out and LIVE."

This sounds interesting. Could you elaborate on this.

Where does one get things like individ. throttle bodies?......and cost?

I assume that the cams are given more lift.....how much more, and are the pistons replaced as a result?

I also assume a programmable FI computer.....where does one get this, and cost?

Thanks..........you got me thinking!!!!!!!
 
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Discussion Starter #7
Hi Henryk

As JRV mentioned


Hi Henryk

As JRV mentioned in an earlier post, I also to do not want to hijack this thread, but in answer to some of your questions, I have sourced high quality throttle bodies from a company called Tweakit, a performance specialist here in Sydney, Australia, contact Jeremy Levartovsky, his e-mail address is [email protected] he is also a Haltech, http://www.haltech.com , dealer & specialist, as he worked at Haltech in the area of R&D for many years.

As far as the cams are concerned I chose a cam profile, with advice from some colleagues who have many years performance and racing experience, which did not greatly increase the lift at TDC but greatly increased the duration which meant valve / pistons contact is not an issue. The lift on the exhaust has more of an increase and I will more then likely have to emit the valve stem oil seals on the exhaust side, which will be of benefit to valve guide life, this is not a problem and many manufactures do this from factory, including Ferrari on earlier pre cat cars (in Europe anyway, not sure about the US).

I will start a new thread with more info and some photos, when my car is finished in a few weeks.

Steve

PS Sorry for all the name dropping above, but as I mentioned in an earlier post on this thread I don’t have any affiliation with any of these companies, this is just for your information. Please advise if this is inappropriate.
 
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