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> New 914 owner! Already dreaming of engine swaps..., What would you guys think about a 4A-GE blacktop in a 914?
betz
post Nov 6 2018, 04:07 PM
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A little background: I have 3 cars besides the 914: A stock '00 Boxster, a restored '86 E30 BMW with a 2.8L stroker M20, and a '06 Outback XT. All manual trans.

I found this 1972 914 1.7 on craigslist for $1600 and the main selling point to me was that most of the parts were there, it just seemed to need some basic TLC to get it running. Also, its a California car and not a total rust bucket. Also hasn't appeared to be in any major accidents. After pretty much finishing my E30 I've been itching for a new project... Ideally smog exempt.
(IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-22593-1541542078.1.jpg)

The plan for the car is to get it running with the original type 4. The PO, who only had it for a few months, said he thinks it needs a fuel pump... turns out, the fuel pump wasn't even plugged in. So OF COURSE it's not running. He got it to start briefly with just starter fluid, so I'm thinking that's pretty much it. I'm going to bring it back to stock configuration on the D-jet, change out the oil and fuel, plug in the dang fuel pump in and I pretty much expect it to start up no problem.

From there, I will get into the restoration phase. Take it down to bare metal (I believe the car was originally black, and has total crap paint job) tackle any rust, then repaint. Then get the interior/ exterior trim all sorted.

And, if I get through alll that... I will probably want to undertake a motor swap, unless I'm just in love with the type 4. I tossed a few ideas out there, but my ideal motor would be a light, high revving motor with ITB's. Since S14's are not exactly obtainable, the 20V 4A-GE blacktop is my best idea so far. KEP makes an adapter for it, plus, it doesn't make enough power to break the stock 901 trans. I am a mechanical engineer with access to a machine shop, so fabbing some engine mounts, routing cooling system etc will most likely be pretty doable.

What do you guys think? Am I in over my head?
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Tdskip
post Nov 13 2018, 07:28 AM
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Going down a path that others have plowed is likely to give you a much better result, much quicker.
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betz
post Nov 15 2018, 03:43 PM
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QUOTE(Tdskip @ Nov 13 2018, 05:28 AM) *

Going down a path that others have plowed is likely to give you a much better result, much quicker.



This is very true. Even partially plowed is better than nothing.

Not going to lie. I'm strongly considering a type 4 build now. Which may or may not be related to the fact that the type 4 may be the absolute easiest motor in existence to fit ITB's to affordably. Looks like they sell 40mm and 48mm throttles for about $550 for all 4. (Why no middle ground??)

Looking into it, I think the big bottleneck for a budget build is the heads. Ideally, I'd want to fit the biggest possible valves into my 1.7 heads as possible and do the whole spark plug relocation thing. I need to talk to some engine builders, I may have a contact with lots of experience with these heads.

If I get the head figured out, seems like the hot ticket will be the 96mm cylinders, 78.4mm crankshaft, and a nice cam to compliment the setup. Wonder if I can pull 6-6.5k RPM out of this motor... what's the limiting factor besides the cam?

From there, I've already decided what I want to do if I go down this path. Megasquirt with ITB's. 100%. I have absolutely 0 experience with carburetors so the whole idea of it being simpler and easier is not the case for me. When I set up the megasquirt with a proper tune I'll never have to worry about it being tempermental and it will run smoother than a carb'd car ever would.


The only thing *not* making me want to build a type 4 is that jerk Jake Raby. Every damn thread about a type 4 build ends up with "you'd be stupid to try this yourself, the only way to have a good motor is to buy it from Jake Raby". And then Jake Raby chiming in "Years and years of R&D, we don't just toss components together, issall in the combooooooooo"

Well, I may have only gotten my degree in mechanical engineering, but if I can toss together a type 4 motor that's 80% as good as a JaKe rAbY motor for a fifth of the cost, then I would consider that a major success.

Is 150 crank hp achievable with this spec?
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914_teener
post Nov 15 2018, 03:49 PM
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QUOTE(betz @ Nov 15 2018, 01:43 PM) *

QUOTE(Tdskip @ Nov 13 2018, 05:28 AM) *

Going down a path that others have plowed is likely to give you a much better result, much quicker.



This is very true. Even partially plowed is better than nothing.

Not going to lie. I'm strongly considering a type 4 build now. Which may or may not be related to the fact that the type 4 may be the absolute easiest motor in existence to fit ITB's to affordably. Looks like they sell 40mm and 48mm throttles for about $550 for all 4. (Why no middle ground??)

Looking into it, I think the big bottleneck for a budget build is the heads. Ideally, I'd want to fit the biggest possible valves into my 1.7 heads as possible and do the whole spark plug relocation thing. I need to talk to some engine builders, I may have a contact with lots of experience with these heads.

If I get the head figured out, seems like the hot ticket will be the 96mm cylinders, 78.4mm crankshaft, and a nice cam to compliment the setup. Wonder if I can pull 6-6.5k RPM out of this motor... what's the limiting factor besides the cam?

From there, I've already decided what I want to do if I go down this path. Megasquirt with ITB's. 100%. I have absolutely 0 experience with carburetors so the whole idea of it being simpler and easier is not the case for me. When I set up the megasquirt with a proper tune I'll never have to worry about it being tempermental and it will run smoother than a carb'd car ever would.


The only thing *not* making me want to build a type 4 is that jerk Jake Raby. Every damn thread about a type 4 build ends up with "you'd be stupid to try this yourself, the only way to have a good motor is to buy it from Jake Raby". And then Jake Raby chiming in "Years and years of R&D, we don't just toss components together, issall in the combooooooooo"

Well, I may have only gotten my degree in mechanical engineering, but if I can toss together a type 4 motor that's 80% as good as a JaKe rAbY motor for a fifth of the cost, then I would consider that a major success.

Is 150 crank hp achievable with this spec?



Your personnel comments about someone probably aren't necessary.

Your classes in thermodynamics would tell you what is achievable.

edit:

And the size of your wallet is what is possible.
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betz
post Nov 15 2018, 04:26 PM
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QUOTE(914_teener @ Nov 15 2018, 01:49 PM) *



Your personnel comments about someone probably aren't necessary.

Your classes in thermodynamics would tell you what is achievable.

edit:

And the size of your wallet is what is possible.


I didn't need to mention any contacts true.. kind of just thinking out loud that that'll be useful.

My classes in thermodynamics told me that I'd better get the cold reservoir in my engine sub arctic and get that hot reservoir to the surface of the sun and then just garden hose fuel by the gallon and I'll get basically infinite power.

Mechanical engineering courses don't teach jack about building an engine or anything really useful in the real world for that matter, however it does force you to think like an engineer. Whether somebody can apply that to the real world is up to said person. I have built an engine before and that engine got me to work this morning, so I like to think I can apply it well enough.

Realistically I'm not even chasing power else I'd never even consider the type 4. I just want a fun motor. IE, a motor that doesn't feel like you're accelerating with a leaf blower pointed backwards out the window. Other than that.. I'm chasing sound, character, and response. I'm realizing the type 4 may be the ticket to that.
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mepstein
post Nov 15 2018, 04:52 PM
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QUOTE(betz @ Nov 15 2018, 05:26 PM) *

QUOTE(914_teener @ Nov 15 2018, 01:49 PM) *



Your personnel comments about someone probably aren't necessary.

Your classes in thermodynamics would tell you what is achievable.

edit:

And the size of your wallet is what is possible.


I didn't need to mention any contacts true.. kind of just thinking out loud that that'll be useful.

My classes in thermodynamics told me that I'd better get the cold reservoir in my engine sub arctic and get that hot reservoir to the surface of the sun and then just garden hose fuel by the gallon and I'll get basically infinite power.

Mechanical engineering courses don't teach jack about building an engine or anything really useful in the real world for that matter, however it does force you to think like an engineer. Whether somebody can apply that to the real world is up to said person. I have built an engine before and that engine got me to work this morning, so I like to think I can apply it well enough.

Realistically I'm not even chasing power else I'd never even consider the type 4. I just want a fun motor. IE, a motor that doesn't feel like you're accelerating with a leaf blower pointed backwards out the window. Other than that.. I'm chasing sound, character, and response. I'm realizing the type 4 may be the ticket to that.

You just described a small to mid six.
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Posts in this topic
betz   New 914 owner! Already dreaming of engine swaps...   Nov 6 2018, 04:07 PM
aharder   :wttc:   Nov 6 2018, 04:39 PM
ValcoOscar   :wttc:   Nov 6 2018, 04:52 PM
mepstein   :wttc:   Nov 6 2018, 04:58 PM
theer   What do you guys think? Am I in over my head? ...   Nov 6 2018, 05:24 PM
betz   I had to look up what a 4A-GE blacktop is, but y...   Nov 6 2018, 06:19 PM
Shadowfax   :wttc: Looks like a great starting point.   Nov 6 2018, 05:46 PM
Chi-town   A blacktop is nice but parts are getting harder an...   Nov 6 2018, 08:11 PM
betz   A blacktop is nice but parts are getting harder a...   Nov 6 2018, 11:24 PM
Tdskip   Welcome! My guess is the height of the engin...   Nov 6 2018, 08:22 PM
76-914   :wttc: It will not be difficult to improve upon th...   Nov 6 2018, 09:01 PM
Cairo94507   :wttc: Regardless of what you do, have fun doing i...   Nov 7 2018, 08:29 AM
Chi-town   A blacktop is nice but parts are getting harder ...   Nov 7 2018, 09:03 AM
betz   I did love the sound of the ITBs screaming but y...   Nov 7 2018, 11:40 AM
Mueller   Welcome to the club! Quite a few 914 owners d...   Nov 7 2018, 10:09 AM
914-300Hemi   :wttc:   Nov 7 2018, 10:20 AM
914_teener   "The plan for the car is to get it running wi...   Nov 7 2018, 12:14 PM
MichiganMat   Hello from San Jose. I just finished up my WRX sw...   Nov 7 2018, 04:47 PM
Chi-town   Not really hurting it too much, seeing as multip...   Nov 7 2018, 04:53 PM
betz   A 16v 4AGE with ITB's sounds exactly the sa...   Nov 8 2018, 02:17 AM
Andyrew   A 16v 4AGE with ITB's sounds exactly the s...   Nov 8 2018, 10:59 AM
Mueller   Had I not gotten such a killer deal for my Honda V...   Nov 7 2018, 04:59 PM
Andyrew   I have a lot of thoughts on this subject :) Bang...   Nov 8 2018, 10:56 AM
mgp4591   I have a lot of thoughts on this subject :) Ban...   Nov 8 2018, 01:28 PM
Dave_Darling   I thought about the Honda engine and trans swap -...   Nov 8 2018, 05:35 PM
Andyrew   I thought about the Honda engine and trans swap ...   Nov 8 2018, 05:39 PM
Chris H.   Yes the K series is a very strong, cheap, plentifu...   Nov 8 2018, 02:13 PM
Rand   This subject has been beaten to death. Are you exp...   Nov 8 2018, 02:17 PM
betz   This subject has been beaten to death. Are you ex...   Nov 8 2018, 04:24 PM
Rand   This subject has been beaten to death. Are you e...   Nov 8 2018, 08:15 PM
Andyrew   Lots of 914 guys around you... Why dont you go for...   Nov 8 2018, 05:12 PM
betz   Lots of 914 guys around you... Why dont you go fo...   Nov 8 2018, 06:54 PM
Bleyseng   Lots of 914 guys around you... Why dont you go f...   May 15 2019, 07:35 AM
Andyrew   DP   Nov 8 2018, 05:31 PM
betz   Somebody talk me out of buying this guy and pullin...   Nov 9 2018, 01:35 PM
Andyrew   Somebody talk me out of buying this guy and pulli...   Nov 9 2018, 02:49 PM
betz   You were complaining the subaru being unreliable...   Nov 9 2018, 03:32 PM
Andyrew   You were complaining the subaru being unreliabl...   Nov 9 2018, 03:57 PM
PatrickB   Somebody talk me out of buying this guy and pulli...   Nov 11 2018, 05:52 AM
Chi-town   Somebody talk me out of buying this guy and pulli...   Nov 9 2018, 03:40 PM
Andyrew   [quote name='betz' post='2664360' date='Nov 9 201...   Nov 9 2018, 03:56 PM
betz   Tell ya what, if you want to waste money like th...   Nov 9 2018, 04:11 PM
Larmo63   I read this thread thinking I was logged into 914 ...   Nov 9 2018, 04:53 PM
Chi-town   :rotfl: Alfa owners on suicide watch now Looks ...   Nov 9 2018, 05:29 PM
Porschef   Buy it for the Brembo calipers :evilgrin:   Nov 9 2018, 05:31 PM
djway   https://www.youtube.com/watch?v=tcPgE40t4dc Well ...   Nov 9 2018, 10:50 PM
Chris914n6   More motivation... K20A2 Porsche 911 http://www.9...   Nov 10 2018, 01:07 AM
betz   More motivation... K20A2 Porsche 911 I did my N...   Nov 10 2018, 10:13 AM
Dave_Darling   I did my Nissan VQ30DE swap back in 2000 before f...   Nov 11 2018, 01:35 PM
Chris914n6   I did my Nissan VQ30DE swap back in 2000 before ...   Nov 11 2018, 09:58 PM
Chris914n6   Most of the Subie guys use SpeedHut gauges. Mainly...   Nov 10 2018, 12:22 PM
betz   I've been sick the past few days, but I couldn...   Nov 10 2018, 06:17 PM
Chi-town   I've been sick the past few days, but I could...   Nov 11 2018, 01:48 PM
betz   I got it started!!! https://photos.ap...   Nov 11 2018, 04:45 PM
Andyrew   Awesome! Do a minor tune up and keep driving i...   Nov 11 2018, 05:09 PM
Mike Bellis   I'm a big advocate of the Audi 20v turbo. I...   Nov 11 2018, 08:34 PM
matthepcat   Nice to meet you today betz, will be watching the ...   Nov 11 2018, 09:05 PM
betz   I think my next step is to track down this weird i...   Nov 12 2018, 04:00 PM
Dave_Darling   First: FUEL LEAKS BAD!!! Make sure y...   Nov 12 2018, 04:33 PM
betz   First: FUEL LEAKS BAD!!! Make sure ...   Nov 12 2018, 08:15 PM
Andyrew   After driving the 914 I think I might just go a ...   Nov 12 2018, 09:38 PM
mepstein   My feeling was to do my suby swap with a cheap but...   Nov 12 2018, 08:21 PM
Tdskip   Going down a path that others have plowed is likel...   Nov 13 2018, 07:28 AM
betz   Going down a path that others have plowed is like...   Nov 15 2018, 03:43 PM
914_teener   Going down a path that others have plowed is lik...   Nov 15 2018, 03:49 PM
betz   Your personnel comments about someone probably ...   Nov 15 2018, 04:26 PM
mepstein   Your personnel comments about someone probably...   Nov 15 2018, 04:52 PM
betz   You just described a small to mid six. I would ...   Nov 15 2018, 05:42 PM
Mike Bellis   Going down a path that others have plowed is lik...   Nov 27 2018, 07:16 PM
Dave_Darling   We know people who run Type IV motors at 7K RPM pr...   Nov 15 2018, 06:27 PM
betz   Thanks for the reply Dave. I just made a black fr...   Nov 26 2018, 06:34 PM
rhodyguy   wow.   Nov 26 2018, 07:06 PM
Dave_Darling   Well, it sure looks cool! No idea of the answ...   Nov 26 2018, 11:18 PM
betz   Well, it sure looks cool! No idea of the ans...   Nov 27 2018, 11:17 AM
Larmo63   I'd call Jake Raby and get his opinion. :st...   Nov 27 2018, 12:22 AM
Chris914n6   The 86 is like the 350z... the enthusiasts are doi...   Nov 27 2018, 03:15 PM
betz   The 86 is like the 350z... the enthusiasts are do...   Nov 27 2018, 03:39 PM
1adam12   I originally thought of doing an FA-20 swap a year...   Nov 27 2018, 04:30 PM
betz   I originally thought of doing an FA-20 swap a yea...   Nov 27 2018, 05:27 PM
1adam12   I originally thought of doing an FA-20 swap a ye...   Nov 27 2018, 06:05 PM
Chi-town   FA20 is a joke. Underpowered, unreliable when used...   Nov 27 2018, 06:58 PM
betz   FA20 is a joke. Underpowered, unreliable when use...   Nov 28 2018, 12:45 AM
Chi-town   The EJ series engines even N/A are cheap and easy ...   Nov 28 2018, 12:56 AM
betz   Welp, after a half a year of deliberation I've...   Apr 23 2019, 04:32 PM
rhodyguy   What is the timing belt interval for that engine? ...   Apr 24 2019, 12:42 PM
Chi-town   That's not a mint one, that's your standar...   Apr 24 2019, 04:43 PM
betz   That's not a mint one, that's your standa...   Apr 24 2019, 05:26 PM
RolinkHaus   How about a German engine?? :shades2: :popcorn:   Apr 24 2019, 05:50 PM
betz   How about a German engine?? :shades2: :popcorn: ...   Apr 24 2019, 07:13 PM
Grego in Sac   How about a German engine?? :shades2: :popcorn:...   Jul 15 2021, 01:30 PM
Chris914n6   You want to do all the usual maintenance items bef...   Apr 24 2019, 06:02 PM
2mAn   Thanks for all of the welcomes! I hardly got...   May 14 2019, 04:38 PM


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