29 replies to this topic

[Racehatch]

It was the stromberg's that came out on the XU1's, (150 LC, 175 LJ)

They are a completely different carby to the SU, and made by a different manufacturer.

I'd say the weber carbs would be the best option, they are a twin throat carb and have more adjustments, but can be a little bit more time consuming to keep in tune.

I have run both SU's and Stromberg's on holden sixes, personally I liked the stombergs better, they just seemed a bit more refined (driveability wise) as compared to the SU's

[mrlctorana]

If you dont have a local professional Weber tuner in your family and you are not running an NC race car,forget it. If you want flat out top end all the time at 7,000 rpm these are the goods...for idleing down Main St with the odd blat once a week...forget it.

^^^ Yeah, I agree but also disagree, lol, sorry to be difficult. I run triple 45 mm Dellortos on a reasonably hot 202 and i love nothing more than to hear it sitting on 7000 RPM on the burnout pad at tarmak Dragway, But i also like to drive the thing on the street and on Torana runs n Stuff.

I've learnt how to give them a basic tune by using a piece of pipe, and im able to drive it on the street regularly without any troubles, aswell as sneek out the road and give it a bootfull. I've found that they stay in tune fairly well.

I suppose it just comes down to what you want... If it's perfomance go the webbers or dellortos or if its drivability and easy tuning take the strommys, they are very easy to work on and do perfom fairly well. Although heres a comparison not sure how accurate it is but i ran mine down the quater with the 175 strommys for a best of 14.6, bolted the dellortos on with no other modifications and got a best of 13.5. Although could be numerous other factors that influenced the times.

Anyway, I'm happy with my dellortos performance wise and drivablilty wise so the choice is really yours, and what it comes down to.

Cheers

Les

[Racehatch]

So I guess the short answer to all this is:

max performance with no expense spared - weber/dellortos

everyday easy to tune/ keep in tune - SU/Stromberg

Hate to burst some ballons but you can tell the blokes that have never had Webers...they always recommend them. Webers are the closest thing to manual fuel injection. you can get....

haha i assume you are referring to me, you are right I have never run triple webers on a holden six, but does dual webers on holden V8 count... Admittedly I had help with the tune side of things, but I found that it was worth getting someone with knowledge to do the initial setup. With a few pointers on what to adjust relative to the variables (say weather/car setup for example) it wasnt THAT hard to keep them in tune. Provided you are not constatly changing you engine spec..... Probably the hardest part is just getting the right advice to start with, as there are LOTS of people who think they know....

I guess at the end of the day, everyone has different experiences with all things car related, and these forums are a great way of sharing what we all have learned!

cheers,

Sam