Jump to content

300 HP, How to Assemble Our Engines Engine Builders Chime In


Recommended Posts

I made 2 videos showing how I built up my M10. The goal for this one is 3 times the power the 1975s left the factory with. I'm asking to see if anyone has any other tech tips or whatever that I should include in this series. I think I explained things pretty thoroughly, but I may have missed something since this is my first "ground-up" M10 build. Let me know what you think!

 

Edited by Benjamin A.R.
Link to post
Share on other sites
  • Replies 140
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

93 mapei master, super record 11. one of my favourite rides. 

Your point is lost because if you build any type of performance motor(not even a race motor, just a very good build), you would be doing machine work to the crank so, might as well use smaller bearing

Posted Images

If you are using the ARP head studs DO NOT USE THE SPECIFIED TORQUE OF 90 ft/lbs!  You will CRUSH the cylinder head around the rocker shafts!  With the fine thread at the nut end of the stud 65 ft/lbs is more than enough to keep the head gasket (MLS) in place. 

  • Like 3
Link to post
Share on other sites

 

2 hours ago, Preyupy said:

DO NOT USE THE SPECIFIED TORQUE OF 90 ft/lbs!  You will CRUSH the cylinder head around the rocker shafts!

Too late haha. The machinist I was working with said 110nm so that's what they got. I didn't notice anything odd, felt fine. Did 3 steps with a wait period in between. Under what circumstances did you find this occuring? It's such a tight fit I would think that the rocker shafts would provide enough support. 

Link to post
Share on other sites
On 1/9/2021 at 10:39 PM, Benjamin A.R. said:

I made 2 videos showing how I built up my M10. The goal for this one is 3 times the power the 1975s left the factory with. I'm asking to see if anyone has any other tech tips or whatever that I should include in this series. I think I explained things pretty thoroughly, but I may have missed something since this is my first "ground-up" M10 build. Let me know what you think!

 

Are you trying to compile information on a M10 300hp boosted build or are you following a model by others?

I know of 2 boosted M10's but 200 rear wheel hp is really all that was safe and reliable.

 

My last M10 2 liter, 292 cam, head port and polish ccd 10.25 compression, 40 dcoe's put 121hp to the ground and is still running well with 1 head refresh and 120k miles. This was assembled over 20 years ago when parts were easier and cost less. I see all kinds of hp and dyno numbers here that seem a tad optimistic. 

 

Looking forward to your results.

  • Like 2
Link to post
Share on other sites

I'm trying to document the process as much as I can. The hot ticket is going to be E85 or lots of water-meth, 91 isn't going to cut it safely in my opinion. It's all in the tune, unfortunately that's one of my weaker areas of knowledge, but I made it this far. The M10 has insane potential that for the most part isn't accessed much in the US.

Link to post
Share on other sites

How many hours (or minutes) do you get out of each of these motors?

An M10 with 200hp at the rear wheels I know can be a 100k mile motor with some care and disciplined maintenance.

It just depends what your goals and budget are but you have to be realistic.

 

Or drink some Koolaid.

 

Link to post
Share on other sites
2 hours ago, gary32 said:

How many hours (or minutes) do you get out of each of these motors?

If this were 1989 and I were playing with K-Jet I would be more concerned. I've been running 10 psi on my bone stock 200k+ mile M10 for the past 10,000 miles... smacking the limiter most of the way. The engine doesn't care at all. I never even strapped it to a dyno, it's street tuned. I don't buy the narrative that M10s are delicate and you're on borrowed time.

 

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.