gangzoom Posted August 1, 2013 Share Posted August 1, 2013 (edited) It's taken over 12 months, and all the mods on the car is done (BMW 335i). Finally had time to take it back to the dyno today so see the results (hottest of the day of the year)… Last year, running just tuning box, and Forge intercooler with Tesco super unleaded (99 Ron), 15 degrees ambient temp, the car made 316bhp at the crank. Now running, AFE sealed intake, AR catted downpipes, and Forge intercooler, Procede tune with boost limit set a 14 PSI, Tesco super unleaded (99Ron), about 29 degrees ambient temp, the car made 380 bhp and 390 lbs at the crank. Total spend is hard to workout but about £1500 in parts. Had it been cooler, or had I pushed up the boost limit to 15-16 psi am sure the car would have made 400 bhp+, but main aim for me is to have a reliable motor hence the conservative boost limit (over the pond people run at 17-18 psi). Overall I'm very happy!! Not sure how much extra BHP £1.8K gets you on the Z, but big thumbs up to Mitz/Andy for getting the downpipes fitted, not a easy job ------------------------------------------------------------------ So a quick update on the car: Not done any significant mods for the last few months but have had the joys of experiencing good old German reliability. After a quick trip to Tesco the fan came on full blast and 2 hr later I was been towed to Cougar Store. Luckily Andy and Mitz as usual was able to sort out the car and put right a few other issues a local BMW 'specialist' had not quite sorted (lesson learnt in future always take the car to CS, regardless of how close the near by 'specialist' is). Turns out the water pump was knackered, a known problem. I also had a new high pressure fuel pump fitted as mine was starting to die, another know problem, and also recently had a gear box oil leak fixed...you guessed it another 'known' problem. At least now the car should be sorted for the next 12 months....next up hybrid turbos, am keen to break 450bhp+ without having to run meth, but need to get bigger oil coolers fitted....I feel another trip to CS coming up Edited February 11, 2014 by gangzoom 2 Quote Link to comment Share on other sites More sharing options...
MITZ@CougarStore Posted August 1, 2013 Share Posted August 1, 2013 Nice one, Gang, always happy working on your car, when you're free pop in some time... Quote Link to comment Share on other sites More sharing options...
stuarty Posted August 1, 2013 Share Posted August 1, 2013 (edited) It's taken over 12 months, and all the mods on the car is done (BMW 335i). Finally had time to take it back to the dyno today so see the results (hottest of the day of the year)… Last year, running just tuning box, and Forge intercooler with Tesco super unleaded (99 Ron), 15 degrees ambient temp, the car made 316bhp at the crank. Now running, AFE sealed intake, AR catted downpipes, and Forge intercooler, Procede tune with boost limit set a 14 PSI, Tesco super unleaded (99Ron), about 29 degrees ambient temp, the car made 380 bhp and 390 lbs at the crank. Total spend is hard to workout but about £1500 in parts. Had it been cooler, or had I pushed up the boost limit to 15-16 psi am sure the car would have made 400 bhp+, but main aim for me is to have a reliable motor hence the conservative boost limit (over the pond people run at 17-18 psi). Overall I'm very happy!! Not sure how much extra BHP £1.8K gets you on the Z, but big thumbs up to Mitz/Andy for getting the downpipes fitted, not a easy job Get a picture up mate, really like the 335i. BTW how do you find the stock mpg compared to the zed? Edited August 1, 2013 by stuarty Quote Link to comment Share on other sites More sharing options...
squanchy Posted August 1, 2013 Share Posted August 1, 2013 Yeah, love these cars as well. Much better value than the M3 I'd say. Photos! 1 Quote Link to comment Share on other sites More sharing options...
The Chubby Ninja Posted August 1, 2013 Share Posted August 1, 2013 look at that torque curve! that's impressive Quote Link to comment Share on other sites More sharing options...
brillomaster Posted August 1, 2013 Share Posted August 1, 2013 jesus thats the peakiest torque curve i've ever seen! i'm sorry, but is that actually driveable on the road? in the space of 1000rpm the torque figure trebles bet your traction control has a hard time in the wet! Quote Link to comment Share on other sites More sharing options...
gangzoom Posted August 1, 2013 Author Share Posted August 1, 2013 Looking at the dyno graph i think there must have been wheel spin between 3000-5000 rpm, certainly driving day to day there it's a pretty linear power delivery. Quote Link to comment Share on other sites More sharing options...
gangzoom Posted August 1, 2013 Author Share Posted August 1, 2013 Theres not much to look at from the outside in regards to the car, pretty much like any other 3 series your find parked on any street Quote Link to comment Share on other sites More sharing options...
stuarty Posted August 1, 2013 Share Posted August 1, 2013 Love those CSL alloys! Quote Link to comment Share on other sites More sharing options...
brillomaster Posted August 1, 2013 Share Posted August 1, 2013 nah alloys are too good... gives away it might be a quicker car than you're letting on. Tell you what, we've got a set of 15" BMW wheels you can have, for the true beater look Quote Link to comment Share on other sites More sharing options...
gangzoom Posted August 2, 2013 Author Share Posted August 2, 2013 Just to reassure my self, had another look at my logged runs, and am pretty sure the guy doing the dyno must have had wheel spin at 3000-4000 rpm, since on my logged runs by 4000 rpm the boost is already nearly at 14 psi!! Looking at other 335i dynos graphs it appears maximum torque is usually around 4000 rpm, wheres on my graph at 4000 rpm the car is making hardly any torque/power, so wheel spin seems like the most feasible explanation . So I guess the maximum torque is probably over 400 ft-ibs!! 1 Quote Link to comment Share on other sites More sharing options...
docwra Posted August 2, 2013 Share Posted August 2, 2013 Sweeet. I test drove an M135i the other day, still loving that engine ......... then I drove a 1M the next day and started saving immediately afterwards Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted August 2, 2013 Share Posted August 2, 2013 What's that doing to the mpg? Nice motor btw, like how rare the 335i is... Quote Link to comment Share on other sites More sharing options...
gangzoom Posted August 2, 2013 Author Share Posted August 2, 2013 (edited) MPG better than the Z, doing mainly start/stop city trips 23-25 mpg, sitting on the M roads at 70mph, 35-40mpg. But thats because at those speeds the engine is essentially off boost, higher speeds and the mpg is about on par with the Z....Though my massive roof spoiler is not really helping on the aerodynamics front Edited August 2, 2013 by gangzoom Quote Link to comment Share on other sites More sharing options...
AK350Z Posted August 2, 2013 Share Posted August 2, 2013 Nice Q car there, I'm not really a BMW fan, but if that was an estate I'd probably mess my troosers! Quote Link to comment Share on other sites More sharing options...
Dynamic Turtle Posted August 2, 2013 Share Posted August 2, 2013 MPG better than the Z, doing mainly start/stop city trips 23-25 mpg, sitting on the M roads at 70mph, 35-40mpg. But thats because at those speeds the engine is essentially off boost, higher speeds and the mpg is about on par with the Z....Though my massive roof spoiler is not really helping on the aerodynamics front Understood. Just always thought one of the main attractions of that genius bmw engine was the astonishing fuel economy relative to the performance. If you can average 30mpg that's superb. Quote Link to comment Share on other sites More sharing options...
gangzoom Posted February 11, 2014 Author Share Posted February 11, 2014 Updated with info on latest trip to CS Quote Link to comment Share on other sites More sharing options...
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