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what to do with this
- Thread starter tel240z
- Start date
tel240z
Club Member
Yes John that's the one, only drove it for the first time today, torque developments have been mapping it recently, i now have twin pumps in the tank ignition amplifiers and a host of other goodies, running safe and well at the moment and still the same power but very smooth curves, will put some pictures up soon when I have sorted a small issue of noisy fuel pumps when cornering need to open the tank up
tel240z
Club Member
Well found the issue with the noisy fuel pumps was that they were dragging the bladder up in the fuel tank sorted that now with a aluminium bar to hold it in place, some pics and info for you to peruse basically I have two pumps in the tank both feeding the fuel rail on seperate fuel lines and 1 return line via a nice quality regulator
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Sent from my SM-G930F using Tapatalk
tel240z
Club Member
Yes i definitely intend to
Alphabettispaghetti
Club Member
Nice work. As standard the s50b32 runs two fuel pumps and is regulated at 5bar(IIRC). I did try a single pump once however it just didn't work, plenty of issues with surge on track and not revving out properly(8300).
tel240z
Club Member
Yes Matt same pully's peak boost was just over 10 psi someting i want to look into but i need to check sizes of what i have, if you want somthing to do its a RMS stage 2 M3 kit using a vortech V 2 sci trim charger lubricated from the engine oil pumped from the engines sump http://www.racemarque.com/product/stage-2-bmw-e46-m3-supercharger-kit/#.W9X8kZP7TIU i need to find out rpms it can handle as im revving at 8600 rpm now
tel240z
Club Member
I wish John we will just have to see be interesting to see if I can get the power and torque up earlier with pulley changes
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Ian
Club Member
Great power for an S30, and a nice linear curve as one might expect from a supercharger, given how linear it is this should be great for traction, no big jumps in power like you get when a big turbo comes on boost, should be a rocket down the strip.
I'd be very interested in a few drag races with you after comparing power graphs. You have more top end than me, over 20hp more from 7000rpm onwards and I imagine your top end feels frantic as you get close to redline. Its the midrange that interests me.
3000 - 125 & 210 vs 150 & 265
4000 - 280 & 220 vs 360 & 480
5000 - 295 & 310 vs 440 & 465
6000 - 400 & 345 vs 475 & 410
7000 - 475 & 350 vs 450 & 340
8000 - Mine revs to 8000 but the power and torque have dropped way off by here
Given your power surpasses mine from 6800 onwards and with you revving to 8600 I imagine you are not dropping out your powerband after shifting it would be very interesting to see which is faster. Down a drag strip probably yours, on a track, not sure.
I imagine your feel like you have more than enough power but are you planning on changing pulleys and running more boost?
I'd be very interested in a few drag races with you after comparing power graphs. You have more top end than me, over 20hp more from 7000rpm onwards and I imagine your top end feels frantic as you get close to redline. Its the midrange that interests me.
3000 - 125 & 210 vs 150 & 265
4000 - 280 & 220 vs 360 & 480
5000 - 295 & 310 vs 440 & 465
6000 - 400 & 345 vs 475 & 410
7000 - 475 & 350 vs 450 & 340
8000 - Mine revs to 8000 but the power and torque have dropped way off by here
Given your power surpasses mine from 6800 onwards and with you revving to 8600 I imagine you are not dropping out your powerband after shifting it would be very interesting to see which is faster. Down a drag strip probably yours, on a track, not sure.
I imagine your feel like you have more than enough power but are you planning on changing pulleys and running more boost?
tel240z
Club Member
That sounds like a plan Ian, found this youtube vid a couple of weeks ago that i didn't know existed of my 11 second run, very interesting for me as its a struggle to keep it off the rev limiter but on this run i seem to get everything right, good launch quick gear changes and it would seem that i even get into 5th (what do you lot reckon) just before the finish line which is a worst of two evils as historically it just hits the limiter about 20 foot away, mind you though that was when the limiter was at 8200 rpm
Alphabettispaghetti
Club Member
Its an amazing engine and powercurve. Should be fast everywhere. Its like an NA engine just with more poke everywhere, so linear. Supercharging really is the best way.
racer
Club Member
That's impressive power for the standard pulley. I've seen these kits making 650 brake on built engines like yours.
They seem to handle the revs when put together properly.
johnymd
Club Member
That age old question as to which is better. I've been looking into this again with my new toy. It's a standard engined 1.6 mx5 and as most people know I don't do standard. Mighty car mods built 2 mx5's. One with a turbo and the other with a supercharger. It was interesting that both presenters preferred the turbo car although the supercharged one was better in all the tests. I think it was down to the fun factor when the turbo comes in. I'm sure yours will still have the fun factor though Terry.