| Author |
Message |
Verell Boaen (Verell)
Member
Username: Verell
Post Number: 798
Registered: 5-2001
| | Posted on Saturday, May 31, 2003 - 9:37 pm: | |
RC,
Search the archives. the big differences are cam timing,the ignition curves, and the exhaust.
You can't do much about the ignition maps w/o going to an aftermarket ignition control system.
No one makes a 'chip' for the ignition modules.
As to cam timing, it isn't any harder than changing cam belts(same procedure). As to the various 3x8 cam specs & timing, there's a very active thread on this topic:
http://www.ferrarichat.com/discus/messages/112/251131.html?1054254530
You can switch to an Ansa or Tubi exhaust, and use 'test pipes' for track performance...
A suspension rebuild & brakes/shocks upgrade would still get you better track times.
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Philip Airey (Pma1010)
Member
Username: Pma1010
Post Number: 261
Registered: 7-2002
| | Posted on Saturday, May 31, 2003 - 12:39 pm: | |
RC
I don't know for the injected cars, but the euro carb'd cars had the intake cam advanced by 4 crankshaft degrees. Was supposed to lift the torque curve somewhat. There is a great write up in Allen Bishop's book on Ferrari Tuning (carb'd car) on the topic.
As I recall from looking at the WSM @Continental once, the ignition timing curves were different for the Euro and USA spec 2v injected cars. In fact from my notes, the USA version used a "family" of 8 curves to control advance wrt MAP and rpm (although 4 of the curves are similar). The Euro version used 3. As a point of comparison, at WOT/4000 rpm, the USA version is running 36 degrees of advance and the Euro 31. They come together at peak torque (5000 rpm 37 degrees).
Overall, I agree with Dave Handa, I am not sure where you are going to get noticably more power without a LOT of investment and the 2v injected cars are not perhaps a great place to start.
My advice is just to enjoy it as is (although I am violating this with P6 cams in my carb'd 308). I track my 308 7 or 8 times a year. It is "fast enough" for a couple of years for me to find my areas of discomfort. You'll gain much more (quicker lap times) from a driving school/practice/working on the chassis than you will tweaking the motor.
Good luck with whatever you decide. |
david handa (Davehanda)
Member
Username: Davehanda
Post Number: 833
Registered: 5-2001
| | Posted on Friday, May 30, 2003 - 11:59 pm: | |
There is not much difference in published HP specs between the USA and Euro 308 GTSi (9 hp), so not sure that would even be worth the trouble.
The cams and exhaust are different as well, so just an "adjustment", is going to give you the extra hp.
Stay on the list and monitor posts, and perhaps do some searches in the archives, but I think you will find that the easiest, least expensive way for hp, would be to sell your car and get a QV. That would cost 4-5k and I can't think of where you could spend that much on your car and gain 25 to 30 hp. |
RC PEAK (Rc_peak)
New member
Username: Rc_peak
Post Number: 5
Registered: 5-2003
| | Posted on Friday, May 30, 2003 - 5:49 pm: | |
I have an 82 308gtsi usa version.
I want to use euro spec's for more power
What are they? fuel press, timing , cam etc
thanks rc |
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