2276 street engine dyno chart

[gerico]

Thought you guys might be interested in dyno results of my 2276 street engine. Before anyone comments on the "low" HP for a 2276 consider that the heads are 40x35, the cam is an E-120, the carbs are Dell 40s w/ 32mm vents, and the cam gears are beveled (i.e. quiet). Dyno was with fan belt, working alt, and through the muffler with 91 oct gas. Small valves, small cam, small carbs, but look at that torque curve...looks more like a type 4. Perfect for the street. The engine was built with the goal of a reliable, mildly tuned street engine with lots of torque, rapid throttle response, and decent mileage.

Yes I built it myself but with lots of advice and help from Jason @ VW paradise and from Darren @ DRD Racing. I can't say enough about how helpful both of these guys were. Heads (DRD Level 5), crank, rods, advice on the combo, and dyno session from DRD. Small parts, machining, and lots of help from VW paradise.
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`70 street Ghia, 2276 NA
Thanks to:
Darren at DRD Racing
Jason at VW Paradise
Bill at Shear Speed
Kevin at KCR trans

[Stripped66]

That's not a torque curve, that's a torque "plateau"

Looks like a solid street engine!
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[67jason]

looks like a fun toy. and i wouldnt necessarily consider a 160hp street engine a low power producer.
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67 bug x3
67 ghia
64 bug

[Stripped66]

[67jason]

[vwracerdave]

Show us a 1/4 mile time slip. Thery are a lot more fun getting one then a dyno print out.
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2017 Street Comp Champion - Thunder Valley Raceway Park - Noble, OK
2010 Sportsman ET Champion - Mid-America Dragway - Arkansas City, KS
1997 Sportsman ET Champion - Thunder Valley Raceway Park - Noble ,OK

[The Noof]

That's a drivers torque curve.Should pull like a train, and not work hard at all even with moderate use.Good job, bro.

[CJG]

Nice looking #s for sure you will some fun. Not bad for horse power at 158, but your torque is outstanding and keeps building. Good street engine.

[beetleboy58]

Thanks for posting! I have an almost identical engine in the works.

My questions are- How would this engine behave with 44 carbs and say,drd L6 heads instead of L5 with a little more cam? Would that much low end be lost?

[The Noof]

You're push the power up higher, but they're will be more of it.Low end torque will suffer.

[Alan_U]

I'm suprised the enigine made that much HP with that cam and carb setup. A definite true test would be the MPH on a timeslip.

If that engine made it to the track I'd say it should be shifted a 6000 rpms (no higher) to compensate for any tall gears used. The car will start to slow down at the 5000 rpm mark.

Regardless of dyno numbers or timeslips that car will be a nice motor for the street. I suspect it'll fall hard on its face at 6000-6200 rpms. The false impression of pulling hard upto that rpm if you look at the torque curve.

The 158hp is merely a large number but in all honesty its not significant for real world application. The torque drops like a rock so the real max useable HP and torque is in the 5500 rpm range. 149.7 HP is awesome for a longevity 2276.
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11.92sec pump gas true daily driver. Who says it cant be done.

No more time for VW's.......

[SRP1]

Those are very good realistic numbers with that combo. That engine should live a long healthy life with that set up and be fun to drive. Good job man

[DRD RACING HEADS]

This engine will give you guys a idea on what can be done today with the parts and resources avaible today.
The owner and builder of the engine wanted to build a street driveable engine to drive anywere and last a long time, not a 1/4 mile engine with a high maintenance plan, and short life, pick one of the two, game over.
His engine will never see the track and was never inteneded to see the track. It not hard to click off a timeslip at a track, but to make the engine and power train last is another story.

With the bigger 42X37.5v DRD L6 heads, the torque would come in at the same rpms, and build more torque over the power band. This is were years of experience, flow bench data and dyno data come into the game. Years of collecting engine data will help the engine builder select the proper parts to build the right engine for the a given application.
The power of this street engine is pretty common at our shop, our dyno reads on the lower end of the scale compared to most dynos around.

It"s a no frills build, with the proper head design, cam selection, and carb selection. Get these right, and you have a engine that has a very good VE and builds a solid torque band.

Job well done Gerry!
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[gerico]

Like Darren said, it's a street engine and will never see the track...probably never go over 6,000 on the street so I'm not worried about power dropping off over 6,200. I wanted an engine that would JUMP on the street and still deliver good mileage and solid reliability. The combo Darren recommended will do exactly that. Also I've got a street pro freeway flyer type trans with 3.88 R&P so it's geared for the street, not for the track.

What have I learned from this build? Aside from a wealth of info on building a stroker I learned 3 important things:

1) It's all in the combination. Big valves, carb, and cam aren't really necessary to make significant power. It's the combination that makes power.

2) Rather that trying to figure out the combo on your own, trust a pro who's built hundreds of engines.

3) Unless you're a tuning whiz, have a pro builder dial it in on their dyno. Money well spent. REALLY well spent.

Again, thanks to Darren and Jason for all their assistance. Couldn't have done it without them. AWSOME customer service!
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`70 street Ghia, 2276 NA
Thanks to:
Darren at DRD Racing
Jason at VW Paradise
Bill at Shear Speed
Kevin at KCR trans

[clearsurf2001]

Congrats Gerry. I know it's been a long haul, and along with that trans (say thank you Kevin) you're about 2 miles ahead of me. Well done ... now ... get that bad boy re-wired, and on the road.
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Get ready for the injection

[nsracing]

Now that is a MOTOR! Looks like it comes to life at 2500 RPM and hangs on to pull stumps. Perfect road racing engine.

What compression ratio? Secret?

[gerico]

[DRD RACING HEADS]

Gerrys engine was making torque, and alot of it right off idle. It's really hard to get a readings on the dyno at low rpms, so I start taking readings when we get the sweet spot on the rpms. Another thing to be aware of, just because the power falls off on a 100% load on the dyno, dosent mean the power falls off, when the engine is in the car, the car will never put a load on the engine like a dyno will.

Like I said, no secrects, a well planed out combo, with years experince, and data collection. Heads, this has alot to do with the power, cam, and carbs, along with being tunned correctly made this happen.
With out the correct tools to design engines, your shooting in the breeze, and wasting your money
_________________
"DRD RACING HEADS"
"CNCHEADS and engine parts"

We sell What Works!
HTTP://WWW.DRDRACINGHEADS.COM
Email [email protected]
Phone-714-545-4100
DRD Online Store
HTTP://WWW.DRDRACINGHEADS.COM/Xcart/

[Glenn]

Nothing wrong with a conservatively built engine that puts out 160hp. Remember it doesn't take much to get a Beetle moving. And it looks like it can easily smoke the tires.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

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[MConstable]

No shit...Congrats on the engine!
I pray for a torque "curve" like that with my engine.
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1974 Thing