From knowing nothing to having a Thunderbird supercharger on an m20b27i

[Ether-D]

So what you're saying is I need to grow some balls. I know, I'm just afraid I'm gonna blow up something and the car goes down again for another month. I'll get the registered version asap. Thanks again Keith.

[The Dark Side of Will]

but cruising AKA super light throttle 2-3000 RPM it is trying to be a bit lean, 15.0-15.3.

As Whodwho mentioned, 15-16 for light load cruise is OK... just watch out for knock as you tune the transition from cruise to load.

[Q5Quint]

Keith, I have been running your tune for a year nearly as-is and it still works great. Had to adjust it a bit due to the -10 degree days we dont usually have.

Mr Ether-D, no ball growing necessary. Just make sure you are not running lean under wot/ambient pressure/boost. Running 14-15 afr down the highway is fine as long as your timing is not too advanced for your 87 octane.

However, it will be really hard to change your timing correctly without knock sensors on a dyno. Find somebody that DID do a dyno tune, and remember that is your upper limit timing map wise. No shame in being safe.

Get your fuel right and turn back time if you think it is pinging. The accel enrichment settings can really fck things up if you get too crazy with them so make sure to save backups as you go.

If you want help with a particular screen us nerds can take screenshots for you.

Alright, update. Took it for a ten mile test drive. Just normal DD style driving. Idles at AFR 12.0-12.5, under medium load accelerating it hangs around 12.9-13.5, but cruising AKA super light throttle 2-3000 RPM it is trying to be a bit lean, 15.0-15.3.

Sounds perfect. Check your afr map and see if that is what it is supposed to do, as it can adjust +-10% or so. To adjust the idle you will need to adjust the actual fueling bins around the idle rpm/vacume. You might have to lower them 4-5 points to notice on your gauge but it depends on how you are setup. Start with just moving them one point at a time.

These ms setups are very smart.... they can tune themselves within a pretty wide range so even if your fuel injectors are 10% off you may not even know because they adjust you back to the correct afr. However, some of those settings turn off at idle and under wot/boost.... so you still have to be smart.

[Ether-D]

Its getting better all the time. I got the rich idle up to 13.9-14.2 ish. So that smells a lot better. Thank you guys. I really do appreciate it.

[Q5Quint]

[Ether-D]

Damn guys. I can't tell you how good I feel right now. This bitch is on fire. In a good way. Real good. Thank you so much.

[Ether-D]

And Quint, that little clip you put up is perfect. That's exactly how I feel.

A local e30 guy took a ride with me and said it felt like his s50 swap. Idk what that means, but some will.

Drum roll please…..

Supercharger Project:

Blower - $100 (CL)
Intake intercooler - $80 (Ebay)
Aluminum plate - $70 (Ebay)
Weld up manifold - $156 (local dude)
Radiator - $80 (Ebay)
Fittings - $15 (Ebay)
Pump - $26 (Ebay)
Bypass valve - $46 (Ebay)
S/C Belt $30 (O'reilly)
Hose - $15 (O'reilly)
Tube and air flow - $9 (Ebay)
Megasquirt - $705 (Whodwho)
Wideband O2 sensor - $160 (Ebay)
Injectors $8 (Pull-A-Part)
Adapter for P/S pulley $35 (Thatphysicsguy)
have crank pulley turned $0.00 (me)
IAT $7 (Ebay)


Running total $1542

[agent]

A local e30 guy took a ride with me and said it felt like his s50 swap. Idk what that means, but some will.

Depends on whose swap it was. ;)

Congrats man, I know you're stoked!

[Ether-D]

Depends on whose swap it was. ;)

Congrats man, I know you're stoked!

Thanks Chris.
You know I have a smaller pulley for later...

[TheTacoMan]

Good job. Now Id like to see some pulls :D

[Ether-D]

All in good time, all in good time...

[Q5Quint]

Oh snap- I keep forgetting you are in TN as well. I am about 20 minutes from the boarder in NC, but I just realized how long TN was and that you might be 5 hours away hah!

We should do a e30 campout in the mountains or at a lake or something this summer. That will give me motivation to finally slap the charger on mine.

Congrats on everything working- and also votes for some video/pics asap.

[TheTacoMan]

Oh snap- I keep forgetting you are in TN as well. I am about 20 minutes from the boarder in NC, but I just realized how long TN was and that you might be 5 hours away hah!

We should do a e30 campout in the mountains or at a lake or something this summer. That will give me motivation to finally slap the charger on mine.

Congrats on everything working- and also votes for some video/pics asap.

Are you too pursuing twin charging?



Also I await more videos ;D

[Ether-D]

Oh snap- I keep forgetting you are in TN as well. I am about 20 minutes from the boarder in NC, but I just realized how long TN was and that you might be 5 hours away hah!

We should do a e30 campout in the mountains or at a lake or something this summer. That will give me motivation to finally slap the charger on mine.

Congrats on everything working- and also votes for some video/pics asap.

Dude, keep an eye on the Southeast sub forum. Have you been to a Brodeo? It's a big camping trip/fast driving weekend for e30 owners here in the southeast. The spring one is in May. I'll be going. You should definitely go.

[MaxBell]

That's funny that MS was almost half your cost.