Hello Folks,
I've just removed the SU's from my Sprint with the intention of overhauling them.
I've imported all the correct stuff to do so from Burlen's and although I have previous experience with SU's, they werent HS6's and it was many years ago. But I do still feel confident that I can handle the job.
However, before placing the order, when I checked, I found BCN needles installed. So I ordered a new pair. The car seemed to drive OK with them and when I did the Minty-Lamb comparison I soon found out that they differed only slightly from the factory installed BCM's, being just a tiny bit richer throughout the range.
In that same comparison I checked out BBT's and BDQ's.
I really like the graph line of the BDQ's as it shows that they are on the lean-ish side in the earlier 2/3rds, but rich-en up substantially (compared to the others anyway) in the later 1/3rd.
Given that BDQ's were fitted to the later cars, would there be any problem with me fitting them to my October 75 Sprint?
OR...should I start looking at other, non factory, needles? If so, what can you recommend?
Thanks & Cheers,
Rob
Sprint SU needles?
Re: Sprint SU needles?
Interesting question, as I have BDQ in my 78 car and was wondering if they should be changed for something else. I will wait for the experts to arrive 
Tony
Tony
Membership 2014047
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Toledo Man
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Re: Sprint SU needles?
I've removed your duplicate post Tony.
Rob, what sort of air filter are you using? If you're using a K&N style filter you will need richer needles to compensate for the extra airflow.
Rob, what sort of air filter are you using? If you're using a K&N style filter you will need richer needles to compensate for the extra airflow.
Toledo Man
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
West Yorkshire Area Organiser
Meetings take place on the first Wednesday of the month at 8.00pm at The Railway, 1 Birstall Lane, Drighlington, Bradford, BD11 1JJ
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - a project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint), NYE 751L (1972 Dolomite 1850 auto) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.
"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle
-
Sundowner
Re: Sprint SU needles?
Thanks for your replies gents.
Toledo Man,
I am, right now, converting the thing over to run on sports air cleaners, and hadn't given any thought to what you've suggested. Thanks for that.
I've tried several times to do a screen captcha of the Minty Lamb site comparison of these needles, so I can post it here, but haven't succeded, probably due to me being a computer clutz.
Although the BCN's that are in the car presently are just slightly richer throughout the range than the BCM's, I don't think its enough.
I had been planning on installing a pair of either the BBT's or BDQ's. As I mentioned in the initial post I like the idea of the BDQ's as they're leaner while cruising but richer on acceleration.
However, the BBT's are richer by quite a bit (even over the BCN's) right throughout the range, and at this stage are my choice.
Once again,
Thanks.
Rob
Toledo Man,
I am, right now, converting the thing over to run on sports air cleaners, and hadn't given any thought to what you've suggested. Thanks for that.
I've tried several times to do a screen captcha of the Minty Lamb site comparison of these needles, so I can post it here, but haven't succeded, probably due to me being a computer clutz.
Although the BCN's that are in the car presently are just slightly richer throughout the range than the BCM's, I don't think its enough.
I had been planning on installing a pair of either the BBT's or BDQ's. As I mentioned in the initial post I like the idea of the BDQ's as they're leaner while cruising but richer on acceleration.
However, the BBT's are richer by quite a bit (even over the BCN's) right throughout the range, and at this stage are my choice.
Once again,
Thanks.
Rob