robrado974 1 Posted April 20, 2018 Evening chaps . I have recently fitted a BMC , I had a KnN fitted before. To me it seems like I’ve lost excelerating power. It’s like the opposite of a placebo effect. I’m sure it’s lacking in power . I can’t think of any reason at all why ?. Any help or info would be appreciated. Kind regards Rob Quote Share this post Link to post Share on other sites
Rado87 10 Posted April 20, 2018 Evening chaps . I have recently fitted a BMC , I had a KnN fitted before. To me it seems like I’ve lost excelerating power. It’s like the opposite of a placebo effect. I’m sure it’s lacking in power . I can’t think of any reason at all why ?. Any help or info would be appreciated. Kind regards Rob Strange, as these are supposed to be better than the K and N aren’t they!? I had a K and N cone filter fitted to my VR and it wasn’t very good at all, like you say, loss of power. Have you got all the connections, jubilee clips and the like, fitted securely? Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
dr_mat 0 Posted April 20, 2018 Did it happen in the last two days? If so, it's entirely down to 30 degree air. A Corrado is for life, not just for the MOT. Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 Strange, as these are supposed to be better than the K and N aren’t they!? I had a K and N cone filter fitted to my VR and it wasn’t very good at all, like you say, loss of power. Have you got all the connections, jubilee clips and the like, fitted securely? Sent from my iPhone using Tapatalk Yep all fitted nice n tight . Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 Did it happen in the last two days? If so, it's entirely down to 30 degree air. A Corrado is for life, not just for the MOT. I thought these were supposed to be better in warm temps ?. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
Rado87 10 Posted April 20, 2018 Yep all fitted nice n tight . Sent from my iPhone using Tapatalk Is it possible the MAF can’t cope with the change in air flow?? Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
dr_mat 0 Posted April 20, 2018 I thought these were supposed to be better in warm temps ?. The engine isn't though. It will always make less power in hotter air. A Corrado is for life, not just for the MOT. Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 Is it possible the MAF can’t cope with the change in air flow?? Sent from my iPhone using Tapatalk No idea bud , the KnN was fine in the heat and there are supposed to be prone to heat soak . Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
Rado87 10 Posted April 20, 2018 No idea bud , the KnN was fine in the heat and there are supposed to be prone to heat soak . Sent from my iPhone using Tapatalk I think if it was me, I’d put the standard air box back on or even the KnN and see if there’s a difference. At least then you can rule out the CDA. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 The engine isn't though. It will always make less power in hotter air. A Corrado is for life, not just for the MOT. Will keep an eye on it Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 I think if it was me, I’d put the standard air box back on or even the KnN and see if there’s a difference. At least then you can rule out the CDA. Sent from my iPhone using Tapatalk That’s what I was thinking. The temp is supposed to drop tomorrow, I will give it a run then . I even thought about taking someone with me to compare the two , it takes minutes to swap them over . Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
Rado87 10 Posted April 20, 2018 That’s what I was thinking. The temp is supposed to drop tomorrow, I will give it a run then . I even thought about taking someone with me to compare the two , it takes minutes to swap them over . Sent from my iPhone using Tapatalk Sounds like a plan. If I was more local I’d be more happy to join you for a spin! Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 20, 2018 Sounds like a plan. If I was more local I’d be more happy to join you for a spin! Sent from my iPhone using Tapatalk Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 22, 2018 A little up date and more questions. I took the car for a spin on Saturday morning and the response was a lot better as it was cooler . I also noticed how quick the temp dropped when you are at speed from when it was stationary in traffic and the fans were coming on obviously the cooler air is rushing in . So do I really need to run a pipe from the filter to the grill ?. 1 it won’t look very nice . 2 it won’t do anything unless you are at speed anyway and as I said it’s cooling nicely without it . I also noticed it seems to get hotter quicker in traffic than when the KnN was fitted ?. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
dr_mat 0 Posted April 22, 2018 In general the standard air box is one of the best for maintaining cool air intake and avoiding heat soak. It draws air from behind the bumper rather than inside the engine bay. That said, a big engine in a small engine bay tends to heat everything very quickly anyway, not much you can do about that and once all the ancillaries are steaming hot too there is no relief until you start doing some speed and forcing outside air through the system. A Corrado is for life, not just for the MOT. Quote Share this post Link to post Share on other sites
robrado974 1 Posted April 22, 2018 In general the standard air box is one of the best for maintaining cool air intake and avoiding heat soak. It draws air from behind the bumper rather than inside the engine bay. That said, a big engine in a small engine bay tends to heat everything very quickly anyway, not much you can do about that and once all the ancillaries are steaming hot too there is no relief until you start doing some speed and forcing outside air through the system. A Corrado is for life, not just for the MOT. Thanks Matt. I will keep an eye on it . Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
Kevin Bacon 5 Posted May 12, 2018 A little up date and more questions. I took the car for a spin on Saturday morning and the response was a lot better as it was cooler . I also noticed how quick the temp dropped when you are at speed from when it was stationary in traffic and the fans were coming on obviously the cooler air is rushing in . So do I really need to run a pipe from the filter to the grill ?. 1 it won’t look very nice . 2 it won’t do anything unless you are at speed anyway and as I said it’s cooling nicely without it . I also noticed it seems to get hotter quicker in traffic than when the KnN was fitted ?. Sent from my iPhone using Tapatalk No, you don't need the corrigated pipe. Just leave the BMC as it is, the responsiveness is a lot better. It's a really good filter on the VR6, so I'm surprised your responsiveness hasn't improved. Probably a bad MAF. VR6s are notorious for it, as are most cars using the stupid over sensitive sensor. Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 12, 2018 Is the red cone inside the correct way round? Quote Share this post Link to post Share on other sites
robrado974 1 Posted May 12, 2018 No, you don't need the corrigated pipe. Just leave the BMC as it is, the responsiveness is a lot better. It's a really good filter on the VR6, so I'm surprised your responsiveness hasn't improved. Probably a bad MAF. VR6s are notorious for it, as are most cars using the stupid over sensitive sensor. I think I will do some trial runs today . I will have my son with me and use the stopwatch , hold it at 4K and floor it , standing start etc . Then swap back to the KnN . I just need a safe place to do it really . It might just be me Kevin. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted May 12, 2018 Is the red cone inside the correct way round? I would have thought so Jim , it came off a members car on here . Engine side is front , air side is to the Maf , correct?. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
Jim Bowen 1 Posted May 14, 2018 I thought engine side would be to the maf and air side to the air Quote Share this post Link to post Share on other sites
G60AL 10 Posted May 14, 2018 Its A long shot but a few years back, on my G60 when wanting power it faded, after many unsuccessful trips to VW specialist I decided to investigate: I found On the fuel Tank top cap where the pipes go into, inside the fuel tank the rubber hose that goes to the pump had a split so pressure wasn't there and leaking fuel back into tank. good Luck Quote Share this post Link to post Share on other sites
robrado974 1 Posted May 14, 2018 I thought engine side would be to the maf and air side to the air Yeah it’s the right way round Jim . I just wrote it wrong . Once the traffic dies down I will go for another spin in it . It’s probably me , it was a really hot day the first time I used the car with it fitted. Sent from my iPhone using Tapatalk Quote Share this post Link to post Share on other sites
robrado974 1 Posted May 14, 2018 Ok I admit it was me . Been out for a few miles this evening and she is performing nicely. Quote Share this post Link to post Share on other sites
a_riot 0 Posted May 15, 2018 I pulled my K&N filter a few months after buying it. I noticed no increase in anything but noise after I installed it. After 6 months of use, my car seemed to be slow, so I pulled it out thinking it might need cleaning already, and put my old, dirty OE air filter back in during the ridiculous 24 hours it takes to dry the thing. Immediately noticed more power with the dirty OE filter than with the only 6 month old K&N. I threw the K&N in the garbage and never looked back. Paul Quote Share this post Link to post Share on other sites
