1rotty 40 Report post Posted February 4, 2010 Wonder if fuel economy improves? NO -more power,heavier foot Got 9.4k/l from Ak to Hastings & it was a fairly fast run. Thats only slightly better than my e39 540 ( 10.1 for the same trip) Quote Share this post Link to post Share on other sites
Guest Simon* Report post Posted February 4, 2010 As HP and fun go up, economy goes down - one of motoring's great traditions Quote Share this post Link to post Share on other sites
bmpower 3 Report post Posted February 5, 2010 I dyno'd at 100.9 rwkw / 198.5nm with stock engine bar headers, exhaust and pod filter. The E30 in question is a nz new 1986 prefl 325i running mot 1.1 with waynes headers into twin pipes with 1 resonator in each pipe then into a vx commodore back box. Filter is a simota carbon shielded thing. Aside from those everything is stock standard! Interesting to note: we took the pod off and made 105.6 rwkw and 204.1nm! This was all done at shred industries in lower hutt and on a hub dyno as opposed to a rolling road. i have the graph but no scanner.....! Quote Share this post Link to post Share on other sites
1rotty 40 Report post Posted February 5, 2010 Yeah,Gavin made the point that with the correct tune there is little or no restriction in the factory inlet system with an aftermarket filter like K & N. My tech told me of a similar example 0f a power increase after removing the pod from a clients car & replacing with factory. By the way Kerry, thanks for your recommendation of the headers-got me motivated to do it. Quote Share this post Link to post Share on other sites
bmpower 3 Report post Posted February 5, 2010 Yeah,Gavin made the point that with the correct tune there is little or no restriction in the factory inlet system with an aftermarket filter like K & N. My tech told me of a similar example 0f a power increase after removing the pod from a clients car & replacing with factory. By the way Kerry, thanks for your recommendation of the headers-got me motivated to do it. That increase was with no filter/airbox at all but we just did it to make a point! A properly designed CAI should offer the same as factory at minimum or a slight gain when coupled with exhaust/headers. Glad you got them! Still to this day probably the single best mod i have done to the e30! ...Which i'm sure you'll agree with now too!!! Quote Share this post Link to post Share on other sites
lbirgel 0 Report post Posted February 5, 2010 how many Nm of torque you getting there mark? Quote Share this post Link to post Share on other sites
1rotty 40 Report post Posted February 5, 2010 If I'm reading the graph right 240 @ 2500rpm,260 & 4000 Quote Share this post Link to post Share on other sites
greenday-rulz21 6 Report post Posted February 6, 2010 Just saw this! Great increase. Gavin sure is the go to guy. Bet it moves like a champ now! Quote Share this post Link to post Share on other sites
No name user 379 Report post Posted February 6, 2010 out of interest how much were the headers? Quote Share this post Link to post Share on other sites
hybrid 1043 Report post Posted February 19, 2010 out of interest how much were the headers? Contact 'Wayney' as he builds these headers. Quote Share this post Link to post Share on other sites
Driftit 2078 Report post Posted February 20, 2010 (edited) Didn't see this topic. But here is my dyno sheet from my 325. 1986 325 with 300,000kms on the clock and a worn cam shaft. Standard manifold. And the same exhaust as my series race car. And some cheap pod filter. 102.1 rwkw Divide the Tourqe by the diff ratio if you want the correct figures. Forest now owns this car. Edited February 20, 2010 by driftit Quote Share this post Link to post Share on other sites
