Turbos, Twin Turbos & other Mods

You really should drop by Norwood's since you're in the area and see some of the work. To get an idea as to the complexity this can get to, see http://norwoodperformance.com/turbo%20upgrades.htm

The most cost-effective way to buy a turbo'd Ferrari is to buy someone else's finished project. You'll get it for pennies on the dollar.

 

And what will the torque curve of this modified Supra look like?

 

Regardless of make of engine, the turbo compressor when matched and installed correctly to an engine, will give excellent reliability.
The only cautions I would say is after a spirited drive it is reccomended to let the engine idle for about a few minutes as part of a 'cool down' procedure for the turbos. They get really hot and just shutting down the car while blazing hot reduces their life. Maintenance wise, they have a life of about 100,000 miles before their bearings need to be changed. If you forget, you'll smell the reminder note.

Actually, I'm glad to see the increase in Japanese vehicle performance products. This means they will be able to travel to the salvage yards even faster that before. The quicker that they "redline" themselves into the salvage yard, the better. Just "Mechanical Darwinism" taking its course. A 900 HP Supra can beat almost any Ferrari out there, but the overall respect for Ferrari is still higher among the majority than Toyota. That is a fact that no one can deny.

 

Someone in Australia twin turboed a 355, theres a thread in the Australian forum, if anyone is diligent enough to go find it

 

I would love a pair of turbos on my car

 

Can you say ef forty???

 

Much to my regret I am an F-car wantabe. However I owned a '01 Dodge Turbo Diesel 2500. This truck weighs 6500#s and with the proper injectors, turbo, and fueling box could turn 14.30 sec. 1/4 miles. It had 3:55 gears and would run off the high end of the speedo. I was clocked at 132MPH on Hwy 50 in Nevada. At full boost I had over 42#s of boost on a regular basis. The guys with twin turbos push 100#s +. Kenny at Turbo Auto-Diesel and Ben at A2Z Diesel both in the Phoenix area know a lot about turbo sizing etc. If you need a high speed trailer hauler check out TDR (turbo diesel registry). Is a forum much like this one but deals with turbo diesels. (read Cummings)
Just a little FYI.

 

To answer your questions in the correct order:
I have - twin turbo air to water intercooled - 22 psia
Yes - pretty much every component was modified
Yes - including a couple of sets of pistons...
Don't know, too afraid to drive the car now...
More than an average used ferrari....
Norwood Performance is it... they have the most experience, including a twin turbo F50!

 

There is a member here who has a turbocharged 348, sweet looking car.

I think his username is "348Turbo"

 

Yes, i know him well. He had some troubles for a while but i think after 6 months he got them all worked out. His wife drive his previous 308 but is afraid to drive the turbo 348.

BTW, been debating going turbo though i prefer a blower. Still.. perhaps the winter of 2006/7 will be turbo time

 

A ferrari COMES faster than most any other car and can be made to go as fast as any other can, it just costs more. The engines are VERY strong. An honest street engine running boost can make about 200, maybe 250 hp/liter no matter what country it was made in.

My 308 QV is supercharged and intercooled an hits 22 psi at redline. It makes 420 rwhp, so 500+ crank hp. The only internal changes are better valve springs and rings, and I did the rings during a rebuild because they were better and cheaper than stock, but stock would do just fine. Ferrari engine will stand about 15 psi with stock valve springs and than will yeild a 100% ph increase.

The other thing is that most ferrari owners aren't really very interested in drag racing. Ferrari guys seem to prefer road race tracks, although most don't race there either, they just do track days.

 

Your going to turbo/supercharge an '85 308? How many miles will be on the car?

This is interesting!! Your my kind of guy!!

 

Hmmm.. by next year the car should have about 75k miles on her. i truly wish for more grunt below 3,500 as on the track it is like the engine 'throws like a girly girl.' Yeah yeah, so keep the rev's higher, but in some cases it boils down to either stretching a gear or losing time making a shift (i prefer to stretch a gear). The problem is, as we all know, torque wins races and the 308 lacks torque (especially below 3,500 rpm). Sure i could go with drop gears when needed, but frankly the engine is a wuss below 3.5k rpm.


FYI: Yes the car has been lightened to a good degree, but it could lose another 100 lbs 'easily' and then things will get very $$$$ very fast for CF body panels...