Sideways Steve 10 Posted July 29, 2011 Hello folks, forgive me if I seem silly but its been quite a few years since I last messed about with a KR engine. After setting the ignition timing and idle speed correctly on my valver it does seem to run well however it does feel a bit flat low down in the revs and I dont remeber my Golf feeling like that. I have also done a full service so it has fresh plugs etc. Mine still runs the 42mm inlet manifold at the moment but I do have the 50mm one sitting there which I will be fitting once I get new brass inserts for the injectors. I just wondered in the meantime if anyone could think of any reason why it would feel sluggish in the low rev range ? I am reluctant to fit the 50mm manifold until I am certain its all running sweet as it is but I am wondering if its just needing the mixture adjusted and if that is indeed the case should I wait to have it done after fitting the new manifold too ? P.S it pulls hard after about 4-4.5k right upto the red line but before this seems a bit pants. Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted July 29, 2011 The KR in the Corrado has more weight to pull. My old MK2 valvers were the same. A couple were flat as farts below 4000 but ballistic there after. Interestingly enough, the valvers that had some torque down low were flat past 4000 :lol: How many miles on this lump in the Corrado? I guess you could check the cam timing is correct and not a tooth advanced or retarded and also do a compression test..... Quote Share this post Link to post Share on other sites
Sideways Steve 10 Posted July 29, 2011 Yeh this ones much like that as its fine above 4k. Its only done 100k and has full VAG history, its not even run in yet with that mileage really lol :) Quote Share this post Link to post Share on other sites
davidwort 0 Posted July 29, 2011 Does it have an aftermarket exhaust and/or manifold/downpipe? that can affect bottom end, they are heavy cars for the 1.8 engine though. One other thing is the injectors, they can deliver plenty of fuel at high revs but a poor spray pattern on old ones at lower revs can affect performance. Quote Share this post Link to post Share on other sites
Sideways Steve 10 Posted July 29, 2011 Yes and no, its got a G60 system fitted but still retains the original KR front pipe/silencer so I dont think its that. I guess injectors could be an issue though as it did sit for ages and had old fuel run through it. I may try giving the injectors a clean and see if it makes any difference. Quote Share this post Link to post Share on other sites
