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Old 03-06-2012, 06:56 AM   #1
fronton
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Completed S38 Swap Roll Call

There aren't many of these swaps in the US but since we have our own section now, let's see them! I'll start:

E30: '88 M3
Engine: S38B36
Trans: Stock M3 (US)
Diff: 3.73 LSD
Engine Management: M5 ECU w/MarkD chip, ITG intake
Cooling setup: s38b35 rails/tstat, M20 tank, custom radiator, 16" spal puller
Brakes: stock M3 with Hawk HPS street pads, M5 MC/booster, no ABS
Suspension: Bilstein Sport w/H&R Sport OE, late e36 M3 control arms, THR cabs, VAC 19mm RCS
Wheels/Tires: 16x7.5 BBS RG004, Toyo R1R 225/45/16
Exhaust: 3" single SS TIG welded: S38B36 headers > Vibrant turbo flex > MF cat > Vibrant UQ Resonator > 18" MF w/custom 2.5" tips
Purpose: weekend street car
Weight: 2,760 with full interior and spare
Biggest personal swap hurdles: cooling system, getting the exhaust right








Last edited by fronton; 04-02-2014 at 11:38 AM. Reason: updates
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Old 03-06-2012, 07:19 AM   #2
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not bad, sir
4.10 on an S38 should be very interesting
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Old 03-08-2012, 09:04 AM   #3
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E30: '89 Cecotto M3
Engine: S38b38
Trans: 265/5 Euro (dogleg), M5 clutch
Diff: 3.25 lsd
Engine Management: M5 DME , JimC Chip
Cooling setup: M5 tank, Mesa-Cool 48-plate oil cooler, small radiator (BMW, don't remember which atm) M3's stock electric fan taking care of most the cooling + BMC CDA intake.
Braking system: stock M3 brakes, ABS and stock brake booster aswell
Suspension setup: H&R Race, EDC front, Bilstein B8 rear, TreeHouseRacing CA bushings, H&R 22mm anti-roll bar, Wiechers front Strut brace + UR Rear strut brace.
Wheels/Tires: ACT 16x8.5 225/45/16 , ACT 16x9.5 245/45/16
Exhaust: S38 Headers into Custom dual 2.5" stainless, 2x2.5" inlet, 3" outlet Ferrita muffler
Purpose: DailyDriver - summertime
Biggest personal swap hurdles: engine mounts,


Future Plans: I'd like a brake upgrade ....... there's also a supercharger laying around here somewhere








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Last edited by Xat1cZ; 07-01-2013 at 06:48 AM. Reason: some more updating
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Old 03-08-2012, 09:57 AM   #4
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Nice, yours is the first limited edition M3 with a S38B38 I've seen or heard of.

18"s with a 3.25lsd, I'll bet that does very well on the highway. I'd love a 3.8 both for the extra power and not having a distributer cap in the way of a normal radiator but hard to obtain in the US.

How does your stock booster fit? Is the engine off center towards the passenger side an inch?

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Originally Posted by Xat1cZ View Post


E30: '89 Cecotto M3
Engine: S38b38
Trans: 265/5 Euro (dogleg), M5 clutch
Diff: 3.25 lsd
Engine Management: M5 DME , JimC Chip
Cooling setup: M20 tank, small radiator (BMW, don't remember which atm) M3's stock electric fan taking care of most the cooling..
Braking system: stock M3 brakes, ABS and stock brake booster aswell
Suspension setup: stock Cecotto M3 EDC, TreeHouseRacing CA bushings
Wheels/Tires: 18" Style 32, front - Yokohama ParadaSpec2 225/35R18, back- 255/35R18 (no grip problems here )
Exhaust: Custom dual 2.5" stainless,
Purpose: DailyDriver - summertime
Biggest personal swap hurdles: engine mounts,

as for the cooling system I went the easy route and fitted the biggest possible radiator up front that I could find fit when I did the swap in April '11, was suppose to fabricate the front end and fit a bigger one this winter so that the electric fan wouldn't do all/most of the work, but long story short, the time is/was un-sufficient,

Future Plans: plans for the engine bay would be a new air filter, thinking Simota CF(GruppeM looking thing) + I'm thinking of painting the coolant tank's top half black? .. and I'd like a brake upgrade ...

not in US but I hope it's O.K to post some euro trash in here?
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Old 03-08-2012, 10:06 AM   #5
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Quote:
Originally Posted by fronton View Post
Nice, yours is the first limited edition M3 with a S38B38 I've seen or heard of.

18"s with a 3.25lsd, I'll bet that does very well on the highway. I'd love a 3.8 both for the extra power and not having a distributer cap in the way of a normal radiator but hard to obtain in the US.

How does your stock booster fit? Is the engine off center towards the passenger side an inch?
The S38's airbox is very thick, so thick in fact that you can grind it so that it fits perfectly around/over the booster , have never heard of this before but my dad who had done this swap before in the early 90's before it was "common", experimented and figured that one out back then
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Old 03-08-2012, 10:14 AM   #6
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The S38's airbox is very thick, so thick in fact that you can grind it so that it fits perfectly around/over the booster , have never heard of this before but my dad who had done this swap before in the early 90's before it was "common", experimented and figured that one out back then
No way! How many mm did you shave off? Any pics of the airbox alone or before the booster went in? I wish I had a spare to mess with first.
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Old 03-08-2012, 10:21 AM   #7
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No way! How many mm did you shave off? Any pics of the airbox alone or before the booster went in? I wish I had a spare to mess with first.
Regretfully I didn't take many pics of the swap in progress , and none of the airbox alone ... I could take you a crappy pic of how it looks as it sits but you wouldn't see much..

Having a spare would be nice for you to have for a first time but if you're careful you will be able to do it... just don't take too much, little at a time,
It is pretty safe but taking too much wouldn't be nice

I don't have any spec on how much was shaven off either .. as I said , I just didn't document this swap as much as I now would have wanted too =(

EDIT: you just shave the edge off so that it "floats" with the booster , going around it ...
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Old 03-08-2012, 05:13 PM   #8
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Those motors look right at home in E30 M3s
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Old 03-09-2012, 06:23 AM   #9
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Those motors look right at home in E30 M3s
basically looks like a S14 + 2 cylinders
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Old 03-09-2012, 07:17 AM   #10
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basically looks like a S14 + 2 cylinders
It is, but the other way around. S14 = S38 - 2 cylinders. I heard it is called the s14 because it took just 14 days for M Gmbh to design it (lop two cylinders off the s38b35), which as we all know was originally the M88 in the M1. The s38b35 in the M3 would have been too heavy for DTM for which the M3 was designed. I read that they would have put the s38 in the street M3 but would have been too expensive, and probably too extreme at the time. So Hartge and Alpina were the only ones to offer it since their buyers had deeper pockets. Hartge went with the biggest engine available at the time which was the s38b35 for the H35-24 while Alpina used the M30B35 in the B6 3.5S.

Bottom line is that yes, these motors are right at home in E30 M3s. That is why the s38 is such a great swap- its period correct, originates from the M1, is the s14's big brother, and over 300hp.

Last edited by fronton; 03-09-2012 at 07:30 AM.
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Old 03-09-2012, 07:21 AM   #11
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Nice cars guys. S38 is so nice in these cars.

Cheers,

Jim
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Old 03-10-2012, 09:31 AM   #12
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My Hartge H35-24 build.......



DSC04720 by Raul Salinas, on Flickr




DSC03414 by m3raul, on Flickr

DSC03416 by m3raul, on Flickr

Last edited by e30m3s54turbo; 12-27-2016 at 08:11 PM.
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Old 03-10-2012, 09:42 AM   #13
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what intake is that?
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Old 03-10-2012, 10:57 AM   #14
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what intake is that?
It is euro e28 m5 intake. I built this e30 m3 in 1998. I cloned H35 24 m3.
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Old 03-10-2012, 11:52 AM   #15
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cool thanks.
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