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No! Posted by ELaw [Email] (#699) [Profile/Gallery] (more from ELaw) on Wed, 16 Apr 2014 11:55:21 In Reply to: red top ----------431 injectors in a stock 89T C900?, Roger D [Profile/Gallery] , Tue, 15 Apr 2014 20:33:37 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Those injectors flow quite a bit more than the stock ones and will make the engine run too rich... unless you put in a chip tune designed to use them.
How about pull the stock injectors and send them out to be cleaned and flow tested?
Also, but this is getting a little more involved, you might want to pull the intake manifold and see if the backs of the valves are dirty.
For what it's worth, I had an '86 SPG that had the same "tip-in hesitation" problem. I ended up tweaking some tables in the fuel injection ECU to fix it ("transient enrichment" tables). Unfortunately it was so many years ago I don't have any of the data or tools I used to do it, but maybe Jak could help? I think he's got more recent experience fooling around with those.
_______________________________________ Eric Law Current collection: '12 Audi A4 quattro (self-tuned) '14 Audi A6 quattro (also self-tuned) Gone but not forgotten: '72 99, '77 99 (became a turbo, twice) '80 900T 5-door, '81 900T, '86 900S (became a turbo), '86 900 SPG '86 9000, '97 9000 Aero A bunch of Audis, '69 Firebird, '64 Toyota Corona (first car, cost $35 and worth every penny) Be alert... America needs more lerts!
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