MORE POWER..... No, im not clarkson, yet...

[will lesslie]

Hi All,

I have taken my 81 2l 116 out a few time in regularity and super sprint races. However being ever the optimist I see no problem with the car in due course beating some slower 911s. Handling is spot on at the moment, been lower, stiffer bars ect.

However power is still stock, if not below. I Find the main problem is that the car doesnt want to rev out and seems to run out of puff at 5.6K. We have sitting in the shed a group 1 head which ads another 30HP, but would like to strengthen the bottom end first.

Currently the engine is running:
DHLA 40G Dellorto Carbies
Standard Magnetti mareli Dizzy

what can we do with those, bar bin the dellortos because everyone says to do that.


Cheers

Will

[Paul Gulliver]

Get a Twin spark . Bolt in extra power.

[carlo rossi]

no use what you have
'there is alot out there
those carbs are fine up to 160hp
stock is 122hp
you need cams and carb tuning
its all in the blogs go searching

[V AR 164]

Busso 

[carlo rossi]

OK Ill see you and raise you
Montreal v8

[will lesslie]

OK Ill see you and raise you
Montreal v8

Raised again, Alfa 1260 3L V12

[GTVeloce]

In all seriousness, go the TS route. Bolt in 150 reliable horses. Yes, a busso will be better (but not as balanced) and a lot more work to make it happen. I can install a TS in a weekend so not too hard to do.

Working a Nord is expensive, time consuming and will never be as reliable as a stock TS.

And I am not just saying this because I am about to offer one for sale!!!

[V AR 164]

And I am not just saying this because I am about to offer one for sale!!!

Really.... 

[carlo rossi]

hes right except you have an almost 30 year computer running your motor
and 150hp for a nord reliable will cost you 2 cams $250 carb setup $200
So if the motor is under $600 take the motor

[Paul Gulliver]

I have an Alfetta  that has had a Twin spark motor transplant for the last eight years. It  is used for both track & road . Whilst plenty of things have been changed or replaced over that period the computer ECU is not one of them it has run faultlessly. Hop in turn key and away you go . EVERY TIME.   I also have a 105 ( Nord), whilst it is an older car it is more hop in turn key  close eyes and hope.  I think  if you are only going to spend a few hundred dollars on cams and carbies their is a very big / optimist hope that every thing else in your 40 y.o set up in just fine.

PS You ought to be able to pick up a twin spark motor for a little over $1,000 

[GTVeloce]

I have two TS engines that I have owned for a number of years and have done many kms on them (I currently do 60k km a year in a 75 TS). A few of the electrical components have failed but the ECU has never been one of them. It is very rare to have one fail on you. They really are a bullet-proof engine. And I think they sound much better than a stock Nord.

[carlo rossi]

I will concede that the twin spark is a better motor and so it should be the NORD origins is 1953
BUt and its a Big BUT
a) whats your budget?
b)how original do you want to keep the car for future value

and on the ECU, I have no doubt that the ecu will last for 30 years
what I am saying is that a dellorto is good for technically 100 years
( with service) I will stake my left wingnut that the ECU wont !!
ever wonder why manufacturers give a 3-5 YEAR warranty from NEW
not from 30 year mark  plus electrics dont last and italian electrics less so
i know I have  45 year old moto cycles with 45 year old ecu's ( italian)
whats the one thing on the bike giving me problems
you guessed it !!

[GTVeloce]

Perhaps one of the reasons these engines last so well is that the ECU and all engine electronics are German... Bosch.

[carlo rossi]

perhaps Bosch do it better than ducati Electronica
in fact im probably sure of it
but it still wont be as reliable as a carby
and ask anyone with an air cleaner off a twin carb Nord
as opposed to an injection '
one is pure acoustic symphony the other is revvy
it really does depend what you like in fact the more I type
the more i would like one of both !!around town the TS would be more friendly
There you win! ill go back to dinotopia and listen to my senorous pleasures
of a twin cam twin carb howling at 6500rpm

[105gta]

Hi Will, From your post I assume you mainly use the car in the road and would like to keep it that way. You mentioned you have a Group 1 head available, is this something that you'd like to use to keep costs down, is it serviceable as is or does it need full reconditioning? What makes you think the head you have actually is a group 1 head?
Seems everyone missed your real question of the bottom end of the engine.
Sounds like your engine is just tired and lacking full potential hence you're not revving as freely as you'd like.
I guess my question to you is what are you wanting? A full race engine or just a nice bump in power and drive-ability keeping it roadable yet fun?
Many pros and cons come with engine transplants from other variants including TS swaps.