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View Full Version : Jet size for 2010 Audi s4 3.0t engine direct port?


infinkc
12-07-2013, 06:39 PM
I can't seem to find any info on what the stock injectors put out on this engine. Anyone have any idea what size jets to run for a direct port application (6 jets)?

I have an hfs6 that i will be using.

Hate to buy 6 valved jets @ ~$55ea and be the wrong ones.

Will be pusing about 13-15psi.

50/50 meth

Thanks!

infinkc
13-07-2013, 10:28 PM
After finding out more info on the tfsi engine, is it even possible to use an aquamist system since there really isn't a set idc?

Howerton Engineering
14-07-2013, 04:48 AM
Yes, we have setup many kits for the TFSI. Roughly you can say 1.5 x the HP for jetting, or for a 300hp engine, 450cc.

infinkc
14-07-2013, 08:24 PM
Yes, we have setup many kits for the TFSI. Roughly you can say 1.5 x the HP for jetting, or for a 300hp engine, 450cc.

Jeff,
Will the hfs6 work for the DI engine? Or do I need a hfs4 for this car?

Howerton Engineering
14-07-2013, 08:42 PM
The HFS-6 is not setup to work with this injector setup. In the past it was modified to work, but the new systems do it much better. The 6 was discontinued a few years ago and other than spare parts supplies, is not supported in that manner.