chiping my e30

[jason325e]

i buy chip , replace old chip with dinan chip. do i need to drain fuel tank since im swtiching to 91? or should i drive till my 87 is low and fill up on 91 , any other help would be great , search didnt work for me . thanks

and is it really 20hp and 20tq inprovement? with no damage to anything(unless your redlining all the time)

[Sagaris]

Drive til you are low on 87 and fill up with 91. I wouldnt drive too low though (dont try to get the whole tank empty) so you dont suck up a lot of dirty fuel at once at the bottom of the tank. You wont gain 20hp and 20tq. you may see 5-7hp on a dyno. Regardless, it is still a worthwhile upgrade in my opinion.

[jason325e]

dinan jim c , dosnt matter ill prob get jim c i heard better things but thanks for the post , so only a 5 hp upgrade , thats barley noticiable , in ads it says atleast 20-24 tq increase , id love this considering my 325e has 170tq already.

[xwill112x]

itll run a lot better, smooth your idle out. you'll notice, trust me.