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> Advantages of H-Beam rods over stock in a 2.0L
lonewolfe
post Feb 20 2015, 02:46 PM
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What are the advantages of H-Beam rods over stock rods in a 2.0L motor? I know the H-Beams are lighter and stronger but in terms of performance what are the advantages of using the lighter rods?
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GeorgeRud
post Feb 20 2015, 03:47 PM
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Lighter rods would mean less rotating mass. Probably negligible improvement on a street motor.
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Mark Henry
post Feb 20 2015, 04:05 PM
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(IMG:style_emoticons/default/agree.gif) I wouldn't bother unless a race motor.
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lonewolfe
post Feb 22 2015, 03:59 PM
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Thank you two for your responses! I am surprised there were no pro H-Beam responses from anyone. I remember reading that Jake uses them in all of his engine builds so I figured there would be some responses in favor of using them. I'm still on the fence about whether or not to use H-Beams or get my stock rods reconditioned.
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ldsgeek
post Feb 22 2015, 05:28 PM
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You need to keep in mind what kind of motors Jake builds, not your typical rebuild by any stretch of the imagination.
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r_towle
post Feb 22 2015, 05:33 PM
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Street motor, or even slightly hopped up, I would not waste the money on h beam rods.
I would replace the rod bolts.
I would get the old ones trued up and balanced.

I would focus all my spending on the heads, camshaft, and push rods.
Get the heads ported, get them down by a pro with a flow bench.
You will not regret balancing the heads for performance....even on a stock motor.

Rich
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brant
post Feb 22 2015, 05:35 PM
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They are better by being lighter and stronger. Depends on what your after.
I had a race 2.0 with lightened stock rods and 130-135 hp. It wasn't cost effective to use H-beam rods in hat one. But to go to 8,000 rpm I would.

Depends on the application
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lonewolfe
post Feb 22 2015, 11:41 PM
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This is primarily for a street car. Maybe some auto x but 95% for the street. I have a set of KS flat top 94's but may bump it up to 96's for a 2056. I'm thinking of using a Webcam 494 cam and around 9:0 to 1.0 compression. I'll be running a pair of Dellorto 40's & SSI heat exchangers.
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Olympic 914
post Feb 23 2015, 08:59 AM
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Used the H-beam rods in mine, 2056 with 96mm KB flat tops.

Raby 9590 cam, Ham heads. D-jet

Probably overkill for a street motor.

Can't say how they run, cause body work is still going on. Engine and trans are ready though.


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Mark Henry
post Feb 23 2015, 10:56 AM
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QUOTE(lonewolfe @ Feb 23 2015, 12:41 AM) *

This is primarily for a street car. Maybe some auto x but 95% for the street. I have a set of KS flat top 94's but may bump it up to 96's for a 2056. I'm thinking of using a Webcam 494 cam and around 9:0 to 1.0 compression. I'll be running a pair of Dellorto 40's & SSI heat exchangers.

That cam won't make power over 6000rpm, H-beams are a waste of money.
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lonewolfe
post Feb 23 2015, 04:25 PM
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QUOTE(Mark Henry @ Feb 23 2015, 08:56 AM) *

QUOTE(lonewolfe @ Feb 23 2015, 12:41 AM) *

This is primarily for a street car. Maybe some auto x but 95% for the street. I have a set of KS flat top 94's but may bump it up to 96's for a 2056. I'm thinking of using a Webcam 494 cam and around 9:0 to 1.0 compression. I'll be running a pair of Dellorto 40's & SSI heat exchangers.

That cam won't make power over 6000rpm, H-beams are a waste of money.


Hi Mark! Thank you for your replies. From all your posts I've seen on here I can see you have a lot of experience and knowledge about Type 4 engines. I would like to squeeze the most performance I can out of this car while maintaining reliability and good street drive ability. I'd also like to keep heat in the car and I have a virtually new set of SSI 2.0 heat exchangers. I also have a pair of completely refurbished Dellorto 40 carbs. I have a couple pairs of 2.0 heads in great shape. What cam choice would you suggest that may be better? I live in the SF Bay Area so I'm basically at sea level. Any input will be appreciated. I have most of the parts needed and am not interested in a Raby cam kit for this motor. The Raby kits seem to be the Go To solution for many on here but I wish to have an alternate solution. I'm sure his stuff must be awesome but I want something different. Elgin or EMW cams are another option.
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lonewolfe
post Feb 26 2015, 08:48 PM
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QUOTE(lonewolfe @ Feb 23 2015, 02:25 PM) *

QUOTE(Mark Henry @ Feb 23 2015, 08:56 AM) *

QUOTE(lonewolfe @ Feb 23 2015, 12:41 AM) *

This is primarily for a street car. Maybe some auto x but 95% for the street. I have a set of KS flat top 94's but may bump it up to 96's for a 2056. I'm thinking of using a Webcam 494 cam and around 9:0 to 1.0 compression. I'll be running a pair of Dellorto 40's & SSI heat exchangers.

That cam won't make power over 6000rpm, H-beams are a waste of money.


Hi Mark! Thank you for your replies. From all your posts I've seen on here I can see you have a lot of experience and knowledge about Type 4 engines. I would like to squeeze the most performance I can out of this car while maintaining reliability and good street drive ability. I'd also like to keep heat in the car and I have a virtually new set of SSI 2.0 heat exchangers. I also have a pair of completely refurbished Dellorto 40 carbs. I have a couple pairs of 2.0 heads in great shape. What cam choice would you suggest that may be better? I live in the SF Bay Area so I'm basically at sea level. Any input will be appreciated. I have most of the parts needed and am not interested in a Raby cam kit for this motor. The Raby kits seem to be the Go To solution for many on here but I wish to have an alternate solution. I'm sure his stuff must be awesome but I want something different. Elgin or EMW cams are another option.



Nothing? I think this thread is dead in its' tracks!
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Mueller
post Feb 26 2015, 10:32 PM
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QUOTE(lonewolfe @ Feb 26 2015, 06:48 PM) *


Nothing? I think this thread is dead in its' tracks!



Sadly the discussion of modified Type IV's is going to be less and less it seems as those that are in the know move on to something else (IMG:style_emoticons/default/sad.gif)
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lonewolfe
post Feb 26 2015, 10:42 PM
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QUOTE(Mueller @ Feb 26 2015, 08:32 PM) *

QUOTE(lonewolfe @ Feb 26 2015, 06:48 PM) *


Nothing? I think this thread is dead in its' tracks!



Sadly the discussion of modified Type IV's is going to be less and less it seems as those that are in the know move on to something else (IMG:style_emoticons/default/sad.gif)


Thanks for the reply Mueller! Sometimes it's like trying to find hens teeth to get information. Unless one is upgrading to a motor from a 911, Subie or some V8.

How's your new 914 coming along? I read on here that you finally found another one. I met you at a 914 breakfast get together a couple months ago out in Pleasant Hill. I think you were driving a Range Rover as I recall. I'm surprised Jake did not pipe in since his name was mentioned.
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76racer
post Feb 27 2015, 12:08 PM
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Have you priced H beam rods recently? by the time you resize and rebush your own rods you're not that far off. I installed them on my 2056 and have been very happy. I am also using 96 KB pistons and a Webcam 86A. I'm pretty happy with the performance and will be adding a header system this spring. Also running Dell 40's
Joe
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Al Meredith
post Feb 27 2015, 12:54 PM
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When you go to a stroked crank you must go to a CNC rod because the stock rod will hit the case. The CNC rod has a smaller big end.
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lonewolfe
post Feb 27 2015, 02:14 PM
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QUOTE(76racer @ Feb 27 2015, 10:08 AM) *

Have you priced H beam rods recently? by the time you resize and rebush your own rods you're not that far off. I installed them on my 2056 and have been very happy. I am also using 96 KB pistons and a Webcam 86A. I'm pretty happy with the performance and will be adding a header system this spring. Also running Dell 40's
Joe


Hi Joe!

Thanks for your input! I've considered a Webcam 86A. When does the power start coming on with that cam? Is it good for street driving? Does your car idle smoothly? I thought the 86a was better suited in the higher RPM range but I may be wrong about that. I believe that's the cam RacerChris uses in his racer which leads me to think it's best at high RPM's.
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Mark Henry
post Feb 27 2015, 02:38 PM
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QUOTE(lonewolfe @ Feb 26 2015, 11:42 PM) *

QUOTE(Mueller @ Feb 26 2015, 08:32 PM) *

QUOTE(lonewolfe @ Feb 26 2015, 06:48 PM) *


Nothing? I think this thread is dead in its' tracks!



Sadly the discussion of modified Type IV's is going to be less and less it seems as those that are in the know move on to something else (IMG:style_emoticons/default/sad.gif)


Thanks for the reply Mueller! Sometimes it's like trying to find hens teeth to get information. Unless one is upgrading to a motor from a 911, Subie or some V8.

...

Yep agree, I've been building engines for over 25 years, I used to give lots advice, I got tired of being told I don't know shit from armchair engineers that read something on the internet.
I don't give much advice anymore.
(IMG:style_emoticons/default/mellow.gif)
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Woody
post Feb 27 2015, 03:40 PM
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QUOTE(lonewolfe @ Feb 27 2015, 02:14 PM) *

QUOTE(76racer @ Feb 27 2015, 10:08 AM) *

Have you priced H beam rods recently? by the time you resize and rebush your own rods you're not that far off. I installed them on my 2056 and have been very happy. I am also using 96 KB pistons and a Webcam 86A. I'm pretty happy with the performance and will be adding a header system this spring. Also running Dell 40's
Joe


Hi Joe!

Thanks for your input! I've considered a Webcam 86A. When does the power start coming on with that cam? Is it good for street driving? Does your car idle smoothly? I thought the 86a was better suited in the higher RPM range but I may be wrong about that. I believe that's the cam RacerChris uses in his racer which leads me to think it's best at high RPM's.


I've had an 86a in my 2056 for years. It's street friendly and begins to make power in the 3-3500 range. I've been satisfied with it. I'm going more aggressive with my current build.


80mm crank and rods.

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lonewolfe
post Feb 27 2015, 03:49 PM
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QUOTE(Woody @ Feb 27 2015, 01:40 PM) *

QUOTE(lonewolfe @ Feb 27 2015, 02:14 PM) *

QUOTE(76racer @ Feb 27 2015, 10:08 AM) *

Have you priced H beam rods recently? by the time you resize and rebush your own rods you're not that far off. I installed them on my 2056 and have been very happy. I am also using 96 KB pistons and a Webcam 86A. I'm pretty happy with the performance and will be adding a header system this spring. Also running Dell 40's
Joe


Hi Joe!

Thanks for your input! I've considered a Webcam 86A. When does the power start coming on with that cam? Is it good for street driving? Does your car idle smoothly? I thought the 86a was better suited in the higher RPM range but I may be wrong about that. I believe that's the cam RacerChris uses in his racer which leads me to think it's best at high RPM's.


I've had an 86a in my 2056 for years. It's street friendly and begins to make power in the 3-3500 range. I've been satisfied with it. I'm going more aggressive with my current build.


80mm crank and rods.

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Cool! Are your rods 5.325" or 5.4"? What cam are you using and are you sticking with 96mm P&C's?
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