E30 S52 Build + Turbo Install

[DrLeadFoot]

So much rubber!

[DrLeadFoot]

I ended up going 255s. Way more options.

I pulled the trigger on the g-Force Rival's 245 and 255 both 40/17

[MatRacer]

That was my assumption. but the rolling radius is smaller on an E30... maybe not if going with 265s like OP ;)

here is a link to the comparaison between 2.93 and 3.15 with 225/45 RS3 and ZF320...https://lh3.googleusercontent.com/-m...enShot2858.jpg

[Northern]

Remember the e36 m3's came with (iirc) a 3.23 in manual, and some of the guys who autox swap them out for the 3.38 from the auto m3 so for an NA car I don't think it could be too bad.

[DrLeadFoot]

I would go with hyper silver...I like your car a lot! Very inspiring for me!



I'm just about to try a 3.15 with a ZF320... THe 3.73 was horrible on the long run...

Thanks! Greatly appreciated.

That 3.15 would be pretty short for the ZF in my eye.

[MatRacer]

I would go with hyper silver...I like your car a lot! Very inspiring for me!

I'm just about to try a 3.15 with a ZF320... THe 3.73 was horrible on the long run...

[DrLeadFoot]

How do you like the 2.79 ratio diff with the ZF? I ask because I'm running a 3.73 and have the option to go 2.93 or 2.79 with the ZF. No boost on my car, but I'm still interested in what you think.

In 5th going 65 it holds at 2400 rpm which is cool with me. If you do more auto-x I probably would go with the 2.93 running N/A.


Might pull the trigger on some wheels.

These for the front with a 10/15mm spacer running 245s

http://www.nlmotorin...-p/53179080.htm




For the rear running 265s

http://www.nlmotorin...-p/53170083.htm



I'm debating on the platinum (link for the front) or the hyper silver (link for the rears). What do you guys think?

[Northern]

How do you like the 2.79 ratio diff with the ZF? I ask because I'm running a 3.73 and have the option to go 2.93 or 2.79 with the ZF. No boost on my car, but I'm still interested in what you think.

[Jib05]

My speed sensor is totally disconnected. Hopefully that will solve the problem once it is hooked up.

Have you scanned your ECU?

I haven't scanned my ECU but i'm using the non vanos 402 ecu, In hindsight should have chosen a vanos engine. So i don't think it has the same capabilities in the way of scanning, well thats what i have read.

I've run a wire from the back of my dash (greenplug) to the corresponding wire at the x20/c101 adapter, but it hasn't changed anything. I've yet to run a voltmeter across it to check if it is getting voltage (10v, from what i've been told).

I hope you find a solution to the problem :)

[DrLeadFoot]

Really great what youve with the car. Its pretty much what i'm going for in terms of looks.

BTW My e30 swap does the same thing at WOT shows almost the same AFR. I tried connecting the speed sensor but i'm not getting any change. I'm most likely doing something wrong. Interested in seeing what you do to get this resolved.

subd

My speed sensor is totally disconnected. Hopefully that will solve the problem once it is hooked up.

Have you scanned your ECU?

[Jib05]

Really great what youve with the car. Its pretty much what i'm going for in terms of looks.

BTW My e30 swap does the same thing at WOT shows almost the same AFR. I tried connecting the speed sensor but i'm not getting any change. I'm most likely doing something wrong. Interested in seeing what you do to get this resolved.

subd

[DrLeadFoot]

Vehicle speed is used in a few maps in MS41, like rev limit and heavy throttle vanos activation... Probably more.

What did you pull those codes with?

Thanks for the info!!

My guy has a bluetooth snap-on code reader. Pretty slick.

[Northern]

How does the speed sensor tweak the AFR?

Vehicle speed is used in a few maps in MS41, like rev limit and heavy throttle vanos activation... Probably more.

What did you pull those codes with?

[DrLeadFoot]

Apparently the speed sensor is required to operate the ECU. I need to get that fixed ASAP along with a cam sensor.



How does the speed sensor tweak the AFR?

[Good & Tight]

TRM will send you a tune revision with the correct adjustments. Call Mike and get it sorted out. Your car looks perfect with those wheels..!!