TT205 42 Posted June 7, 2006 There has been quite a lot over the last few months regarding longer intake lengths to get better torque figures I've just got my 8V hill climb car back from being mapped and we tried varying intake lengths, we found this the best ..... Thought you might like this picture I now have an extra pedal for playing the organ Dave Share this post Link to post Share on other sites
benlilly 0 Posted June 7, 2006 How much increase did you get with the longer trumpets compared with a typical setup with the air filters behind the slam panel? Ben Share this post Link to post Share on other sites
Sandy 191 Posted June 7, 2006 Do you have graphs to compare? Just talking peak figures is pointless Share this post Link to post Share on other sites
TT205 42 Posted June 7, 2006 Can't compare to original setup as we have changed the cam too. Repeating runs as it is now but with different intake length gave a difference of ~20 ft/lb peak torque iirc - will check figures and post again Share this post Link to post Share on other sites
White Pugs 6 Posted June 7, 2006 I now have an extra pedal for playing the organ My gag I believe J Share this post Link to post Share on other sites
Mongo 0 Posted June 7, 2006 Can't compare to original setup as we have changed the cam too. Repeating runs as it is now but with different intake length gave a difference of ~20 ft/lb peak torque iirc - will check figures and post again Might be worth getting something fabricated to put underneath the filters to stop the warm air getting to them from the radiator to reduce the inlet temps a bit. Looks like you could run a nice wee bit of plastic down to the grill and get a nice cold air feed like that. Share this post Link to post Share on other sites
Sandy 191 Posted June 7, 2006 Can't compare to original setup as we have changed the cam too. Repeating runs as it is now but with different intake length gave a difference of ~20 ft/lb peak torque iirc - will check figures and post again Cool, well done by the way for getting on with it! Too much talk and not enough experimentation sometimes on the forums!! Share this post Link to post Share on other sites
smckeown 1 Posted June 7, 2006 good stuff. My car should be mapped end of this month/early next month, i also expect to play a bit with inlet lengths. Can you buy trumpet extensions to etend them significantly in the middle between the trumpet and the TB ? Share this post Link to post Share on other sites
TT205 42 Posted June 7, 2006 If you look closely you can work out what material we used LOL! My gag I believe J Do I need to pay royalties Share this post Link to post Share on other sites
pug_ham 244 3 Cars Posted June 8, 2006 It looks good in the flesh as well. If you look closely you can work out what material we used LOL!Do I need to pay royalties It took an exhaustive search for the material though didn't it Dave? Pictures below are wrong way round, Dave over cooking it through the Esses at Harewood last Sunday. (Dave's word not mine) Graham. Share this post Link to post Share on other sites
engine killer 6 Posted June 8, 2006 Can you buy trumpet extensions to etend them significantly in the middle between the trumpet and the TB ? Jenvey do have such kind of extensions because i have a set of it. they are 40mm long and i will try them during my next rr. Share this post Link to post Share on other sites
smckeown 1 Posted June 8, 2006 If you look closely you can work out what material we used LOL!Do I need to pay royalties I did, but I don't have a spare scrap washing machine and bits of string Joking, just looking to make it a bit more secure Share this post Link to post Share on other sites
TT205 42 Posted June 8, 2006 Oooooh ya bitch Don't worry, it's secure as hell, not going anywhere Quality washing machine parts I'll have you know, no string though! Share this post Link to post Share on other sites
Dream Weaver 2 Posted June 8, 2006 Do you not find those mini cone filters restrictive? I had those on my TB's without trumpets and it was flat top end - swapped them for 65mm trumpets and ITG filter and the difference on the road is amazing. My inlet length is similar to yours now, the trumpets landing over the top of the rad. Share this post Link to post Share on other sites
TT205 42 Posted June 8, 2006 Cone filters affected top end by 2BHP only, so for the sake of 2 BHP they can stay for now Who mapped yours in the end? Share this post Link to post Share on other sites
Dream Weaver 2 Posted June 8, 2006 No-one yet, need to phone Mike at Mikeanics, but never seem to get a chance, will ring him this arvo I think. Share this post Link to post Share on other sites
smckeown 1 Posted June 23, 2006 thanks sport, I remember this thread now. I suppose your lucky those individual filters are so small. Am I right in thinking for a track car build for the average twistly(ish) kind of track (rather than silverstone etc) then mid range torque is much more important than top end power ? Share this post Link to post Share on other sites
pug_ham 244 3 Cars Posted June 23, 2006 Am I right in thinking for a track car build for the average twistly(ish) kind of track (rather than silverstone etc) then mid range torque is much more important than top end power ? IMO yes to both situations, more torque is better than top end power. Graham. Share this post Link to post Share on other sites
TT205 42 Posted June 23, 2006 More torque the better, and max torque low down Just for comparison this is a picture with the short trumpets just to give an idea of how much longer these are now http://forum.205gtidrivers.com/index.php?a...ype=post&id=711 Dave Share this post Link to post Share on other sites
