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Looking for a cheap early 70s I4

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stickmaster62

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Post Sun Apr 03, 2016 10:28 am

Looking for a cheap early 70s I4

Hello engine builders, the Miller Automobile Co. is looking for a cheap, sporty I4 engine between 1973 and 1975. I'm also looking anywhere between 100-120 HP on regular fuel (unleaded preferred, but will settle with leaded as long as it isn't premium). Many thanks in advance!
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squidhead

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Post Sun Apr 03, 2016 10:41 am

Re: Looking for a cheap early 70s I4

check with Cpufreak, he has those :D
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cpufreak101

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Post Sun Apr 03, 2016 10:42 am

Re: Looking for a cheap early 70s I4

i have a 1975 turbo I4 i can optimize a bit, or would ya prefer N/A?
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
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stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 10:44 am

Re: Looking for a cheap early 70s I4

cpufreak101 wrote:i have a 1975 turbo I4 i can optimize a bit, or would ya prefer N/A?


N/A please, I'm trying to build something similar to a Porsche 924.
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cpufreak101

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Post Sun Apr 03, 2016 11:00 am

Re: Looking for a cheap early 70s I4

ok then, any request for displacement?
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
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phale

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Post Sun Apr 03, 2016 11:08 am

Re: Looking for a cheap early 70s I4

Inline Designs may have something for you!

With catalytic converter or without? Do you have an efficiency requirement?
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stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 11:40 am

Re: Looking for a cheap early 70s I4

cpufreak101 wrote:ok then, any request for displacement?


I was thinking anywhere between 2.0L and 2.4L
phale wrote:Inline Designs may have something for you!

With catalytic converter or without? Do you have an efficiency requirement?


No effeciency requirement. As far as catalytic converters go, I might as well say yes since the mid 1970s was when they started becoming required for all cars in the U.S. built at that time.
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cpufreak101

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Post Sun Apr 03, 2016 11:47 am

Re: Looking for a cheap early 70s I4

ok then, i just finished one design, a 2.0L performance motor based off the MKII Communitasia I4, designed in 1974. here are the specs.
Image
the engine could rev up to 6900 RPM with 42 reliability before valve float kills the engine, so i just had the RPM cutoff there as there's no real purpose to rev higher.
let me know if more power is required, because i can stroke it out if needed
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
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stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 12:01 pm

Re: Looking for a cheap early 70s I4

That's not too bad, definitely worthy for an entry level mid 1970s Miller sports car! :D
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cpufreak101

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Post Sun Apr 03, 2016 12:07 pm

Re: Looking for a cheap early 70s I4

yeah, as i said i can stroke it out to get more power, though i'd have to make one from scratch if i want anything better really, i mean i'm amazed i even got that out of a communitasia motor
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
<<

stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 12:10 pm

Re: Looking for a cheap early 70s I4

No need, the power will be adequate.
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cpufreak101

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Post Sun Apr 03, 2016 12:11 pm

Re: Looking for a cheap early 70s I4

ok, i'll send the files
Company Id:1945270
Galt Motors, excelence since 1945
(PS, Galt automotive is still Galt motors, i use it interchangably)
<<

stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 12:19 pm

Re: Looking for a cheap early 70s I4

Okey Dokey! Thanks for the engine! :D
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phale

Posts: 34

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Post Sun Apr 03, 2016 12:20 pm

Re: Looking for a cheap early 70s I4

Inline Designs would like to offer two engines, both based on a 2.0L SOHC-4 family.

The first is DCOE-based and produces 119HP:
Image

The second uses advanced mechanical fuel injection and is more efficient and reliable, but also more expensive:
Image
Last edited by phale on Sun Apr 03, 2016 12:43 pm, edited 1 time in total.
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stickmaster62

Posts: 72

Joined: Tue Feb 02, 2016 11:17 am

Cars: 1999 Mercury Grand Marquis

Post Sun Apr 03, 2016 12:26 pm

Re: Looking for a cheap early 70s I4

phale wrote:Inline Designs would like to offer our custom built DCOE-based inline 4 producing 119HP:


Alright I'm getting more choices than I thought! lol

Anyways, definitely worthy of trying out. Send it over.

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