354 posts analyzed Updated Aug 2026
Averages 11 posts/day, top 25% activity. Most active Fridays around 2 PM UTC. Mostly image posts (60%).
r/EngineBuilding Traffic & Engagement r/EngineBuilding Traffic & Engagement
Volume and engagement over time Posting volume and engagement over time
Post Format
Upvote Distribution
How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.
r/EngineBuilding Most Active Times When r/EngineBuilding Is Most Active
Peak posting by day and hour (UTC) When this community posts most, by day and hour (UTC)
Most Active by Day
r/EngineBuilding Flair Performance r/EngineBuilding Flair Performance
Upvotes and volume by flair Average upvotes and post volume by flair
| Flair | Posts | Upvotes |
|---|---|---|
| Chevy | 47 (36.7%) | 17 |
| Ford | 20 (15.6%) | 26 |
| Other | 13 (10.2%) | 4 |
| Toyota | 8 (6.3%) | 5 |
| BMW | 7 (5.5%) | 9 |
| Honda | 7 (5.5%) | 7 |
| Mazda | 6 (4.7%) | 33 |
| Nissan | 5 (3.9%) | 17 |
| Chrysler/Mopar | 5 (3.9%) | 18 |
| Engine Theory | 4 (3.1%) | 4 |
Post Type Breakdown
Share by text, image, or link Share of posts by format: text, image, or link
r/EngineBuilding Trending Keywords Trending Keywords in r/EngineBuilding
Ranked by how often they appear Title keywords ranked by how often they appear
| Keyword | Mentions ▼ | Upvotes | Comments |
|---|---|---|---|
| engine | 51 (14.4%) | 22 | 11 |
| help | 27 (7.6%) | 4 | 8 |
| head | 22 (6.2%) | 12 | 10 |
| need | 20 (5.7%) | 6 | 11 |
| rebuild | 17 (4.8%) | 9 | 9 |
| build | 16 (4.5%) | 21 | 14 |
| block | 15 (4.2%) | 54 | 17 |
| oil | 15 (4.2%) | 5 | 9 |
| cam | 14 (4.0%) | 21 | 11 |
| piston | 13 (3.7%) | 26 | 21 |
r/EngineBuilding Mentioned Domains Mentioned Domains in r/EngineBuilding
Most linked sites Most linked sites in this subreddit
This community doesn't link off-site.
Its posts are text, images, or discussion rather than outbound links.
r/EngineBuilding Top Posts Top Performing Posts in r/EngineBuilding
Highest-performing posts Highest-performing posts. Each title links to Reddit.
Total engine failure
Oven cleaner stained engine block
I Really Screwed Up a Cylinder with Evaporust and just in Complete Despair. At this Point I’m in a “Screw it” Mentality and May Run it as is. Any Thoughts?
Just painted the block and did a dry fit of the heads and intake after painting
No such thing as "drop in pistons"
Slowly making progress on my 331 stroker motor for my 1969 mustang. Next priorities: Gotta measure pushrod length, degree the cam, and check piston to valve clearance. Overall going pretty well for my first motor build
So let’s say you get a freebie bbc
It’s been a long time coming. But it’s in the car and it turns with the key. Next step, fuel.
BMW M10 Block Crack?
5.7 hemi- This clip just apeared!
| Title | Upvotes | Comments | Type | Date |
|---|---|---|---|---|
| Total engine failure | 349 | 134 | image | Aug 19 |
| Oven cleaner stained engine block | 293 | 62 | image | Aug 16 |
| I Really Screwed Up a Cylinder with Evaporust and just in Complete Despair. At this Point I’m in a “Screw it” Mentality and May Run it as is. Any Thoughts? | 276 | 95 | image | Aug 9 |
| Just painted the block and did a dry fit of the heads and intake after painting | 228 | 18 | image | Aug 11 |
| No such thing as "drop in pistons" | 226 | 47 | image | Aug 19 |
| Slowly making progress on my 331 stroker motor for my 1969 mustang. Next priorities: Gotta measure pushrod length, degree the cam, and check piston to valve clearance. Overall going pretty well for my first motor build | 173 | 11 | image | Aug 21 |
| So let’s say you get a freebie bbc | 169 | 53 | image | Aug 22 |
| It’s been a long time coming. But it’s in the car and it turns with the key. Next step, fuel. | 168 | 28 | image | Aug 11 |
| BMW M10 Block Crack? | 144 | 51 | image | Aug 29 |
| 5.7 hemi- This clip just apeared! | 120 | 34 | image | Aug 13 |
r/EngineBuilding Audience Overlap r/EngineBuilding Subreddit Overlap & Related Communities
Overlapping audiences Communities with overlapping audiences
r/EngineBuilding FAQ Frequently Asked Questions About r/EngineBuilding
What's the best time to post on r/EngineBuilding?
Based on posting volume, r/EngineBuilding is most active on Fridays around 2 PM UTC. That window has the most community activity, but busier hours also mean more competition for attention.
How active is r/EngineBuilding?
r/EngineBuilding averages 11 posts per day and ranks in the top 25% for activity among tracked SFW subreddits.
How many upvotes do posts on r/EngineBuilding get?
Posts on r/EngineBuilding average about 16 upvotes this month (net score per post).
What kind of posts does r/EngineBuilding get most?
On r/EngineBuilding, most posts are image posts (60%)