what sort of 1.4 mile times is everyone running?

[DmcL]

just curious to see where i stand as i cant find a definate book figure for stock.

i ran a best of 16.67 @ 85mph with a 60 foot of a hair under 3 seconds yesterday tho not on a proper strip as we dont have any here but it was on a runway at a small airfield and had all the timing gear, etc. was very wet also. i know if it would have been dry id have been running around 15.5, maybe a little better as ive pulled a 2.0 60 foot on the street on old cracked all weather rear tyres with not much tread left on them so on my current rears id probably be pulling 1.9 or so for the 60 foot.

my only power adding mods are my MAF conversion and tuning/mapping software along with a 64mm BBTB. the tune wasnt altered after the BBTB install either.. didnt have the time to sort it out beforehand.

so whats everyones M20 running in the 1/4 and on what diff ratio and with what mods?

[nando]

I did a 15.2 with a bogged launch and a crappy tune on regular street tires. Never been drag racing before, it's not as easy at it looks. Although if I'd had my hoosiers on my 60-ft would have been much lower, but I also had 2 calipers that were seized. The car felt slow, and it was slow, I'm thinking I'd be somewhere in the mid-high 14's now.

there's no reason a stock 325i couldn't hit low 15's with practice though. But it's almost pointless to worry about, the only "fast" E30s have 300whp or more.

[ForcedFirebird]

I took my e30 to KY last summer while it was still an eta and bone stock - 2000 mile round trip and about 10 time slips hehe. I pulled a 2.3 60' and a 16.8@75mph. All I did was lower the air pressure in the tires to about 11psi (195/60 14), roasted them in the water box, then slipped the clutch just a little on a 3500 rpm launch to keep from spinning. This was when the stock 2.93 differential was still in it, zero mods - right down the the OEM shocks circa 1986, car had 82kmiles at the time.

[dkbmxer002]

i need to take my m42 and see how much i can get out of a nearly stock one.. lolz

[DmcL]

i should be running mid to low 15's in the dry with my current setup. i lost atleast 1 second on the 60 foot time because it was wet so thats atleast 1 second off the 1/4 time right there nevermind getting off the line faster means a faster trap speed so could be even more than 1 second quicker in the dry. id probably be shifting up to 4th gear tho in the dry as i was crossing the line at about 6500rpm in 3rd in the wet. currently have my redline set at about 6900rpm.

could i run out to like 7300rpm on a stock 885 head/stock valve springs? wouldnt be any extra power up there but it might mean i could stay in 3rd instead of having to add in an extra shift to 4th before crossing the line. would also mean i could crack 60mph in 2nd because as it sits now i hit the limiter in 2nd at about 55-56mph, still manage 7 second 0-60 times with that extra shift up to 3rd tho so if i could do it in 2nd my 0-60 would fall down to atleast 6.5, maybe a little lower?

so far theres only been 1 vid uploaded to youtube with any of my runs yesterday and it was my first run with my rear tyres still at about 37psi against a modded ITR on slicks, conditions were damp at the time but started raining more shortly after so all the rest of the runs were with a little standing water. was also a girl driving the modded ITR so i got beat by a honda and a girl lol

its at 1:50, also a savage ford granada after my run on the vid, in the dry that granada runs in the 10-12 second region.

http://www.youtube.com/watch?v=fKWRgy7Se78

[Kershaw]

there's no reason a stock 325i couldn't hit low 15's with practice though. But it's almost pointless to worry about, the only "fast" E30s have 300whp or more.

uh.. i disagree with you. i have at least 30 drag passes in my rx8 and about a half dozen in my former e30. m20b25 with a 4.10 LSD. i was running a 2.15 60' and still only running 15.9 @ 87mph. i was hitting the shifts well and you're really not going to get better than a 2.15 60' out of a stock e30. and if you factor in age, 15.9 is quite good. 15.7 is what e30s "should run" brand new.

you need a healthy increase in horsepower to run 15.0-15.2. im thinking headers+exhaust, cam, miller maf + war chip, should get you there. a 4.10 LSD wouldnt hurt either, since you're going to have to shift to 4th anyway.

i want to take my eta to the drag strip. im curious if i can hit 16s. its terribly slow.

fyi, any 60' time over 2.2 seconds sucks.

[ForcedFirebird]

i want to take my eta to the drag strip. im curious if i can hit 16s. its terribly slow.

fyi, any 60' time over 2.2 seconds sucks.

I have a stack of 16.xx time slips in the eta. Anything over 2.0 actually sucks for drag racing lol. I was able to get a 2.0 flat in my Firebird with the stock 140hp motor, never got it to the track after the turbo kit was installed.

[digger]

I did a 15.2 with a bogged launch and a crappy tune on regular street tires. Never been drag racing before, it's not as easy at it looks. Although if I'd had my hoosiers on my 60-ft would have been much lower, but I also had 2 calipers that were seized. The car felt slow, and it was slow, I'm thinking I'd be somewhere in the mid-high 14's now.

there's no reason a stock 325i couldn't hit low 15's with practice though. But it's almost pointless to worry about, the only "fast" E30s have 300whp or more.

mods list?

[nando]

uh.. i disagree with you. i have at least 30 drag passes in my rx8 and about a half dozen in my former e30. m20b25 with a 4.10 LSD. i was running a 2.15 60' and still only running 15.9 @ 87mph. i was hitting the shifts well and you're really not going to get better than a 2.15 60' out of a stock e30. and if you factor in age, 15.9 is quite good. 15.7 is what e30s "should run" brand new.

on what tires though? 195-65 all seasons? hoosier slicks? BMW was also notoriously conservative on their performance specs.

[Wh33lhop]

If your M20 is tired, you are not going to run great times either. I recall a few sub-130whp chipped and injector'd M20B25 dynos, and I noticed a pretty good improvement on the rear-end dyno going to the NV M50; more than the extra 20bhp would suggest. Just sayin'.

[nando]

mods list?

m20B28 and stuff :p
stock 4.10's (my car was an auto)
crap exhaust
early/inexperienced tune (really conservative timing map)
restrictive stock intake

it was at least 20whp from where I'm at now. I wanted to go back this year but it never happened.

[DmcL]

what sort of amount of ignition advance were u running nando? im peaking at 38-40 around 3000rpm then dropping back a little and then up to 39 or so from about 5200rpm and up.

i really need to tune it on the rollers tbh..

still i think 16.67 is good considering it was taking 3 seconds to do the 60 foot in the wet. curious what ill run in the dry with a good launch because i know i can pull a 2.0 60 foot so thats a second off right there but im sure theres a knock on effect of a higher trap speed with a good launch and minimal spinning. could not find any grip in 1st gear in the wet even with the rear tyres down to about 18-19psi.

[nando]

at the time? Gee, maybe 30 degrees total? I'd have to find the map I was using that day. the shape of the curve was all wrong too.

[DmcL]

ive been messing around with stock ignition curve shapes and others.. dont know if its my mods or what but i seem to be running the strongest on something alot smoother than the stock shape...

heres a comparison graph i made a couple months ago.. im running something like the one marked experimental in black. i removed the degree numbers from the side of the graph so people cant go and copy the WOT ignition maps im posting here but the black line peaks at like 38-39 so that should give u some idea of where the other ones are in comparison. i was originally basing my tunes on the AA tune and tweaking from there but once i cracked open a dinan fine and saw the shape didnt drop back nearly as much as all the others did in the mid range that got me started with experimenting in the mids.. i havent run into knock yet and its starting to look like i could probably a nearly straight line from the first peak all the way to the end of the map without knock.. dont know if that would lose me anything in the mids tho.

[dkbmxer002]

btw if you run 16 seconds in a 1.4 mile drag race you have one fast mother fucker.