Map for alfa boxer 1.7 16v

Alfawiz · Post by **Alfawiz** » Thu Sep 03, 2009 10:03 pm

Hi, Having just fitted a megajolt to my '69 Beetle which is fiited with an Alfa boxer 1.7 16v engine,got it to run OK but just need a better map.Anybody got one or any ideas as to what I need?

NITROPIXIE · Post by **NITROPIXIE** » Fri Sep 04, 2009 7:19 pm

A nice chap with some experience and/or a rolling road would be the most ideal solution. There aren't many alfa boxer engines on here i'm afraid.

The basic Map should be sufficent and safe to drive with the mean time.

DannyP · Post by **DannyP** » Sun Sep 06, 2009 4:56 pm

I think there is a UK-based 550 Spyder website. Lots of British Spyder guys use alfasud engines, perhaps they can help you with a starter ignition curve to make your map from?

alfa boxer · Post by **alfa boxer** » Mon Sep 07, 2009 4:41 pm

I intend to hopefully have my map finalised next week i am runing tps at the end of the throttle shaft.are you using tps? i will post a screen shot of the map when finished.

Alfawiz · Post by **Alfawiz** » Mon Sep 07, 2009 7:58 pm

Yes I put mine on the end of one carb,it was easier to fit then I thought,I just need to tighten the pulley up a bit more bcos as you know they dont have any location! & it has worked loose once.I'll add some pics on here when I figure how to.Cheers,Pete

Rich550 · Post by **Rich550** » Tue Sep 15, 2009 2:19 pm

I'm working on a map for my alfa 33 1.7 8 valve, they're probably quite similar.

I found a graph of the ignition curve for the early Alfasud - probably 1300 (printed in 1975!). Although they state 8'@idle - 22'@2000rpm and 36'@4500 this graph looks really low - can anyone explain this? (I'll try and attach a scan)

Alfawiz · Post by **Alfawiz** » Tue Sep 15, 2009 8:17 pm

Ive now sorted the carb jetting out a bit as it was running lean at higher revs,I drilled the 135 mains out to 160 then 180 much better,she really pulls now,the CO's around 3-4 % when pulling hard in 3rd And the HC's are around 220 at idea which is great!
Alfa Boxer hows the map going? Mines not pinking but I know theys still more to gain on the ignition side as well.

alfa boxer · Post by **alfa boxer** » Wed Sep 16, 2009 9:55 am

hope this helps

Alfawiz · Post by **Alfawiz** » Thu Sep 17, 2009 7:10 pm

Cheers mate,I will put that in,I just need to open the jets out a tad more as shes still running lean at the mid to top end

alfa boxer · Post by **alfa boxer** » Thu Sep 17, 2009 9:23 pm

I am using .45 idle jets 140mains and 200 air correcters with 32 mm chokes

Alfawiz · Post by **Alfawiz** » Thu Sep 17, 2009 9:29 pm

Mine are 52 idles 180 mains 220 AC & 30mm chokes(I Think) in 36 IDFS It did have 135 mains but was running too lean,it still is a bit.How is yours running? have you had it dynoed yet?

alfa boxer · Post by **alfa boxer** » Thu Sep 17, 2009 9:38 pm

I have a device that tells u exactly what the mixture is at whatever load and revs your doing on the open road and you can ajust the map to suit. car runs really really well

although i need to build the aux input ,for cold starts this adds 3deg to the first three bins untill up to a presett temp.

DannyP · Post by **DannyP** » Fri Sep 18, 2009 12:47 pm

Like this?

http://www.amazon.com/AEM-30-4100-UEGO- ... uto_text_b

alfa boxer · Post by **alfa boxer** » Fri Sep 18, 2009 3:54 pm

I use a LM1 and wideband sensor
http://www.innovatemotorsports.com/products/lm1.php

NITROPIXIE · Post by **NITROPIXIE** » Fri Sep 18, 2009 7:08 pm

Being into my DIY stuf i got myself a NAW OEM from http://14point7.com/ but i haven't got myself a sensor yet so its not plumbed in. Will do oneday.