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BeatNavy |
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#21
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Certified Professional Scapegoat ![]() ![]() ![]() ![]() Group: Members Posts: 2,827 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region ![]() ![]() |
Yeah, in and of itself, the higher CR wouldn't cause the failure. I believe the target CR for that cam is primarily based on getting a usable vacuum signal for FI, particularly at idle.
Steve, I'm not sure if it's necessarily BAD to use that cam with carbs (others can comment). But the point is you CAN get a more aggressive cam, and at least a bit more HP, with carbs since you don't have to worry about a usable FI signal. Again, flip side is you could convert to FI down the road with that cam if you really wanted to. |
JamesJ |
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#22
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Member ![]() ![]() Group: Members Posts: 181 Joined: 30-April 20 From: Sunnyvale, CA Member No.: 24,202 Region Association: Northern California ![]() ![]() |
[/quote]
You really have to figure out what made the engine lock up. It wasn’t the 8.8 compression ratio - at least not independent of other issues. [/quote] Yes, thank you. I know they are unrelated. My ? was should I lower the compression ratio while I have the engine apart. If my comments help the OP, then great. Otherwise, feel free to PM me with comments. TIA |
BeatNavy |
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#23
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Certified Professional Scapegoat ![]() ![]() ![]() ![]() Group: Members Posts: 2,827 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region ![]() ![]() |
If the car was running like a champ, then I wouldn't. Unless you find that it somehow contributed to the failure and need to for some reason.
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sjhenry1075 |
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#24
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Member ![]() ![]() Group: Members Posts: 244 Joined: 22-July 12 From: Stevensville, MD Member No.: 14,709 Region Association: North East States ![]() ![]() |
[quote name='JamesJ' date='Dec 9 2022, 07:46 PM' post='3044278']
[/quote] You really have to figure out what made the engine lock up. It wasn’t the 8.8 compression ratio - at least not independent of other issues. [/quote] Yes, thank you. I know they are unrelated. My ? was should I lower the compression ratio while I have the engine apart. If my comments help the OP, then great. Otherwise, feel free to PM me with comments. TIA [/quote] Doesn’t bother me at all, post away |
barnfind9141972 |
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#25
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Member ![]() ![]() Group: Members Posts: 98 Joined: 10-December 20 From: Rancho Mirage, CA Member No.: 24,976 Region Association: Southern California ![]() |
[quote name='sjhenry1075' date='Dec 9 2022, 06:54 PM' post='3044307']
[quote name='JamesJ' date='Dec 9 2022, 07:46 PM' post='3044278'] [/quote] You really have to figure out what made the engine lock up. It wasn’t the 8.8 compression ratio - at least not independent of other issues. [/quote] Yes, thank you. I know they are unrelated. My ? was should I lower the compression ratio while I have the engine apart. If my comments help the OP, then great. Otherwise, feel free to PM me with comments. TIA [/quote] Doesn’t bother me at all, post away [/quote] Jorge at European Motor Works did my whole engine and he makes custom cams depending on what you want whether it’s FI or carbs. He’s a one stop shop, Ian Karr on YouTube had his case fixed by him too. Great guy, knows his stuff and sells everything you need except for a 914 |
sjhenry1075 |
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#26
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Member ![]() ![]() Group: Members Posts: 244 Joined: 22-July 12 From: Stevensville, MD Member No.: 14,709 Region Association: North East States ![]() ![]() |
[quote name='barnfind9141972' date='Dec 10 2022, 02:09 AM' post='3044321']
[quote name='sjhenry1075' date='Dec 9 2022, 06:54 PM' post='3044307'] [quote name='JamesJ' date='Dec 9 2022, 07:46 PM' post='3044278'] [/quote] You really have to figure out what made the engine lock up. It wasn’t the 8.8 compression ratio - at least not independent of other issues. [/quote] Yes, thank you. I know they are unrelated. My ? was should I lower the compression ratio while I have the engine apart. If my comments help the OP, then great. Otherwise, feel free to PM me with comments. TIA [/quote] Doesn’t bother me at all, post away [/quote] Jorge at European Motor Works did my whole engine and he makes custom cams depending on what you want whether it’s FI or carbs. He’s a one stop shop, Ian Karr on YouTube had his case fixed by him too. Great guy, knows his stuff and sells everything you need except for a 914 [/quote] I wasn’t aware he could grind a cam. I think I’ll call him next week. Thank you for the idea |
JamesJ |
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#27
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Member ![]() ![]() Group: Members Posts: 181 Joined: 30-April 20 From: Sunnyvale, CA Member No.: 24,202 Region Association: Northern California ![]() ![]() |
@sjhenry1075
Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @BeatNavy Thanks for the input on the compression ratio. It was running great, but for longevity purposes I richened up the fuel mixture just a hair so that it will run a bit cooler. |
Montreal914 |
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#28
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,323 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California ![]() ![]() |
Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @JamesJ When you figure out what made your engine lock, please share. (IMG:style_emoticons/default/beerchug.gif) |
sjhenry1075 |
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#29
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Member ![]() ![]() Group: Members Posts: 244 Joined: 22-July 12 From: Stevensville, MD Member No.: 14,709 Region Association: North East States ![]() ![]() |
@sjhenry1075 Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @BeatNavy Thanks for the input on the compression ratio. It was running great, but for longevity purposes I richened up the fuel mixture just a hair so that it will run a bit cooler. I only plan on getting the parts, I’m going to assemble the engine myself. |
JamesJ |
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#30
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Member ![]() ![]() Group: Members Posts: 181 Joined: 30-April 20 From: Sunnyvale, CA Member No.: 24,202 Region Association: Northern California ![]() ![]() |
Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @JamesJ When you figure out what made your engine lock, please share. (IMG:style_emoticons/default/beerchug.gif) @Montreal914 Will do! |
JeffBowlsby |
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#31
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914 Wiring Harnesses ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 8,145 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None ![]() ![]() |
@sjhenry1075 Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @BeatNavy Thanks for the input on the compression ratio. It was running great, but for longevity purposes I richened up the fuel mixture just a hair so that it will run a bit cooler. I only plan on getting the parts, I’m going to assemble the engine myself. Be sure to check the vendors on the Nailed thread: Online Parts Resorces List. |
sjhenry1075 |
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#32
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Member ![]() ![]() Group: Members Posts: 244 Joined: 22-July 12 From: Stevensville, MD Member No.: 14,709 Region Association: North East States ![]() ![]() |
@sjhenry1075 Jorge at EM is the one who built my engine. I had to fix some things that were not done properly by EM prior to my engine installation and I am not the only one on World who has had problems with EM. Cost wise he is too far away for me to pay to have the engine returned to him and shipped back to me. I may video the engine disassembly so both parties can agree on the problem. @BeatNavy Thanks for the input on the compression ratio. It was running great, but for longevity purposes I richened up the fuel mixture just a hair so that it will run a bit cooler. I only plan on getting the parts, I’m going to assemble the engine myself. Be sure to check the vendors on the Nailed thread: Online Parts Resorces List. Thank you! |
barringtonpro |
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#33
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Newbie ![]() Group: Members Posts: 11 Joined: 21-April 13 From: NE Member No.: 15,792 Region Association: None ![]() |
I am no professional engine builder, but have built several over the years. My recent 2056 came in around 8.8. She runs great, nice punch with Weber 44's and an Elgin street cam. My gut tells me anything over 9.0 is potentially asking for trouble (for a street machine) Keep us updated with your build Can I ask which Elgin cam did you use? What rpm did it start to pull from? Also are you using 36mm ventures in the 44 webers or did you choke them down? Thanks Frank |
VaccaRabite |
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#34
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,032 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region ![]() |
I am no professional engine builder, but have built several over the years. My recent 2056 came in around 8.8. She runs great, nice punch with Weber 44's and an Elgin street cam. My gut tells me anything over 9.0 is potentially asking for trouble (for a street machine) Keep us updated with your build Can I ask which Elgin cam did you use? What rpm did it start to pull from? Also are you using 36mm ventures in the 44 webers or did you choke them down? Thanks Frank When I was running my 2056 engine with 9.2:1 compression, it ran better with 44s then it did with 40s, but it was all top end power. When I moved to 40s I started having overheating issues and had a bear of a time getting the jetting right. In the end I lowered compression to 8.6:1 and put on non-stock fuel injection. I lowered the compression to keep heat in check, and the fuel injection as I was tired of dealing with crappy carbs. Thousands of miles and many years later then engine has been a champ. A very fun motor for a 914. By the way (not sure of the OP ever bought parts) My 2056 used a 1.7 case, stock 2.0 crank and rods, Keith Black flattop pistons, bored out stock 2.0 jugs, ceramic lifters, Raby cam (now Len's Type4 Store), solid valve train spacers, etc. Zach |
DRPHIL914 |
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#35
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Dr. Phil ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,342 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States ![]() ![]() |
I am no professional engine builder, but have built several over the years. My recent 2056 came in around 8.8. She runs great, nice punch with Weber 44's and an Elgin street cam. My gut tells me anything over 9.0 is potentially asking for trouble (for a street machine) Keep us updated with your build Can I ask which Elgin cam did you use? What rpm did it start to pull from? Also are you using 36mm ventures in the 44 webers or did you choke them down? Thanks Frank When I was running my 2056 engine with 9.2:1 compression, it ran better with 44s then it did with 40s, but it was all top end power. When I moved to 40s I started having overheating issues and had a bear of a time getting the jetting right. In the end I lowered compression to 8.6:1 and put on non-stock fuel injection. I lowered the compression to keep heat in check, and the fuel injection as I was tired of dealing with crappy carbs. Thousands of miles and many years later then engine has been a champ. A very fun motor for a 914. By the way (not sure of the OP ever bought parts) My 2056 used a 1.7 case, stock 2.0 crank and rods, Keith Black flattop pistons, bored out stock 2.0 jugs, ceramic lifters, Raby cam (now Len's Type4 Store), solid valve train spacers, etc. Zach @VaccaRabite Zach My motor numbers etc are very close to yours, i think its just under or tat 9.0 CR and the 9590 cam profile, i think, with the new AA head castings, etc. and still using the D-jet with bored out TB, what TB /s are you using for intake and what FI control system? Phil |
Geezer914 |
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#36
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Senior Member ![]() ![]() ![]() Group: Members Posts: 925 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: None ![]() ![]() |
2056, 9550 cam, Hoffman RS heads, 9:1 CR, 50 mm modified vanagon throttle body. 1.8L Ljet with the AFR metering wheel 4 teeth richer. 93 octain gas.
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VaccaRabite |
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#37
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En Garde! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 13,032 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region ![]() |
Zach My motor numbers etc are very close to yours, i think its just under or tat 9.0 CR and the 9590 cam profile, i think, with the new AA head castings, etc. and still using the D-jet with bored out TB, what TB /s are you using for intake and what FI control system? Phil For my current motor, I am using a 1.8 intake plenum and runners, 1.8 airbox with a deleted flap box. I am using the goWesty throttle body (53mm IIRC over the stock 914 45mm). I have a thread on that somewhere. Fuel and Spark are run via Microsquirt. Spark is done through coil packs, and I have crank missing tooth wheel instead of a dizzy. Before it was tuned how its tuned now, this motor dynoed at 127hp at the wheels, so at the crank its making about 140. I have not put it on a dyno with the current tune, and I pulled a LOT of fuel out of it (it was very very rich) so I don't know what power its making now. I can tell you it's a heck of a motor. Zach |
DRPHIL914 |
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#38
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Dr. Phil ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,342 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States ![]() ![]() |
Zach My motor numbers etc are very close to yours, i think its just under or tat 9.0 CR and the 9590 cam profile, i think, with the new AA head castings, etc. and still using the D-jet with bored out TB, what TB /s are you using for intake and what FI control system? Phil For my current motor, I am using a 1.8 intake plenum and runners, 1.8 airbox with a deleted flap box. I am using the goWesty throttle body (53mm IIRC over the stock 914 45mm). I have a thread on that somewhere. Fuel and Spark are run via Microsquirt. Spark is done through coil packs, and I have crank missing tooth wheel instead of a dizzy. Before it was tuned how its tuned now, this motor dynoed at 127hp at the wheels, so at the crank its making about 140. I have not put it on a dyno with the current tune, and I pulled a LOT of fuel out of it (it was very very rich) so I don't know what power its making now. I can tell you it's a heck of a motor. Zach i do remember reading your thread on the go westy throttle body conversion for your intake. what coil pack sare you using and throttle body was a newer Bosch if i remember correctly so i think yours is very similar to what PMB is doing other than they are now moved to a Holley Terminator ECU so using injectors and coils that go with that and are developing a dizzy that has the cam and crank signals in it, but probably using same crank wheel sensor you are at first. 140 at the crank is a lot of hp for a 2.1 motor!! I feel like we can get this out of mine if ii can work out the details of the full conversion. not that i need that i think that Eric said they were seeing 110 at the wheels with t his set up on a stock 2.0 94mm stock cam etc. thats up from 75-90hp max for a d-jet 2.0 right, so 20hp gain. will see how it all pans out. |
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