|Topic Review (Newest First)|
|05-30-2018 08:23 AM|
|kpc655||I'm currently working to port another head and set it up for 48's. Should add some RPM and HP....it'll be back on the dyno towards the end of summer.|
|05-04-2018 02:22 AM|
Originally Posted by kpc655 View Post
|05-03-2018 09:59 AM|
|kpc655||My race ts head made peak power around 24 deg total advance. 28 sounds quite high|
|05-02-2018 11:55 AM|
Originally Posted by ianellisalfa
|05-02-2018 06:21 AM|
Thanks for the offer, Stephen. You can send me a private message or email if you find the harness. Email address bellow my signature.
Ian - I too have an Emerald installed in my twin spark. I'd like to communicate offline with you too, if that's OK. I'm still tuning so I have some questions for the more experienced.
|05-01-2018 03:08 PM|
I have a twinspark in my road legal track car running on TBs & stand alone ECU (Emerald) whilst in my daily driver I have a twinspark on Webers with the original Alfa (Bosch) ECU running the ignition (twin distributors) and a throttle pot (the variator is hard-wired by a switch on the dash). The latter was much cheaper to build & install, albeit about 35bhp less powerful but is ideal for road use - the most unreliable aspect being the 3 Bosch relays that control the ignition & fuel pump!
I also have a Giulia Ti with a tuned 1750 (oversized to 1.9) pushing out about 150bhp (i.e. stock 2.0 twinspark bhp) which looks great, but cost more to rebuild, and isn't as easy to drive in traffic due to the light flywheel & slight stumble at low rpm...
For me a twinspark on original EFI just doesn't sound like an Alfa!
|05-01-2018 02:21 AM|
Originally Posted by sdamant View Post
|04-30-2018 01:33 PM|
Originally Posted by Richard/SIA View Post
|04-30-2018 11:05 AM|
Hi, I will be back in my workshop mid May and will have a look to see what I have in the way of wiring harnesses....over the years I have collected two T/S engines one was bare but the other came with a large box of "bits"...if I have a harness I will let you know and you are welcome to it.
|04-30-2018 11:01 AM|
|sdamant||Ok my reasons for going the T/S route , my NORD engine is very tired , needs a rebuild...I have a pristine T/S engine , and then ultimately with development I will be able to get more usable power from the T/S. I am keen to keep the under- bonnet looking as original as possible hence the plan to use carbs and an 8 wire distributor . The cams issue has become "interesting" in that apparently I am right about the standard 75 T/S exhaust cam timing and as I have another T/S engine I will use the spare exhaust cam on the inlet which as far as I can see will give the same timing/ profile as the C&B cams listed as performance street .|
|04-30-2018 10:54 AM|
hi, I am pretty sure I am right about the advance that's 28 degrees TOTAL , so say 8 degrees static and then 20 degrees mechanical
|04-29-2018 01:50 PM|
Originally Posted by Veep View Post
Factors that affected my decision were
|04-29-2018 09:36 AM|
a TS conversion will cost more than a good rebuild on a nord, with some tuning. Will simple work and good cam selection you get the same power for less money than the conversion. Besides that: TS wants a more classic look, that needs a 155 head without all the fitting points for distributors and VVT.
Contact RJR on cams with torque delivery. Also for the 75/155 btw... but for a classic look, and more than sufficient power: dont do a TS conversion..
|04-29-2018 04:39 AM|
What's the benefit of a TS on carbs without variable cam versus a hot Nord?
Is there any?
This isn't a sarcastic post btw.. I'm interested in what gains are expected
|04-29-2018 02:42 AM|
Originally Posted by iachella View Post
A properly improved Nord needs 28-30 degrees; TS needs way less.
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