[ace.cafe]

Here's a cool little video from one of our Ace Fireball 535 GT owners that some of you might enjoy.

Notice the road test where he buries the speedo needle on the highway.

Fun!

https://youtu.be/oDdCtAMfDUg

[gizzo]

Love how that speedo needle keeps swinging around the clock 

[Guaire]

We gotta get a bigger speedometer!

[Richard230]

We gotta get a bigger speedometer!

Like the one installed on a Vincent Black Shadow?   

[ace.cafe]

Like the one installed on a Vincent Black Shadow?   

I'm thinking maybe one off a new 650?
I think up to 120mph is as high as we need it.

[Gremlinsteve]

Awesome

[Arschloch]

Like the one installed on a Vincent Black Shadow?   

It's just the incredible airstream that shakes up the tank mounted cam, a bigger diameter instrument's to enhance the readability may not be necessary. 

[Gremlinsteve]

Awesome.    My next purchase is going to be a 535

[wr6133]

Awesome video!

Couple of questions if I may?

What's the (rough) cost of the build?

Is there anywhere each of the mods is detailed along with gains, etc? Intrigued as to the gains without the head work and how effective just the intake and exhaust mods can be.

Did they make that power figure with an AT or was it mapped on a dyno?

Sorry if answered elsewhere, I did have a look but there's alot of threads to scan over.

[gizzo]

Awesome video!

Couple of questions if I may?

What's the (rough) cost of the build?

Is there anywhere each of the mods is detailed along with gains, etc? Intrigued as to the gains without the head work and how effective just the intake and exhaust mods can be.

Did they make that power figure with an AT or was it mapped on a dyno?

Sorry if answered elsewhere, I did have a look but there's alot of threads to scan over.

If i could jump in here, I noticed a small improvement in performance with the Ace/Otto airbox lid and trumpet and a PC-V. My butt dyno said my bike pulled harder up a railway bridge I travel over every day. One day it felt a little bit flat and when I had a look inside, the trumpet had fallen out. I don't think the free flowing muffler made any difference though. Just makes it sound awesomer.

It's had a few other tweaks since then and it pulls well but nothing like Otto's bike in the vid.

[ace.cafe]

Awesome video!

Couple of questions if I may?

What's the (rough) cost of the build?

Is there anywhere each of the mods is detailed along with gains, etc? Intrigued as to the gains without the head work and how effective just the intake and exhaust mods can be.

Did they make that power figure with an AT or was it mapped on a dyno?

Sorry if answered elsewhere, I did have a look but there's alot of threads to scan over.

Cost is about $3k for the billet head, and the rest of the mods on this particular bike shown is about another $2k, so about 5 grand in, all told, plus the cost of the basic bike.

It was mapped on a dyno.

Yes, we have a detailed thread showing the progress of the entire thing from concept to fruition on this forum in the link below.
https://forum.classicmotorworks.com/index.php?topic=20474.0

The billet head and cams are pretty much the power producers on this build. The other mods are primarily to support the head and cams to work at their best.

There are other threads on the forum which show results for intake/exhaust upgrades on a stock head. They typically come out in tthe 25 rwhp area with a Power Commander and tune. This engine wakes up a lot better with good head work and cams, though.

[Arschloch]

This particular bike has all the features currently available from ACE.

Starting with a stock bike that put out 19-20 hp at the rear wheel the upgrades have been made in several stages. For each stage there are dyno figures as well as maps available.

Stage 1: Mainly peripheral mods, ACE Airbox, Exhaust, Power Commander, Map. The output that can be expected is about 26 rwhp as per attached dyno chart.

Stage 2: Adding the ACE Head, will bring you to 32 rwhp.

Stage 3: Adding the ACE cams results in about 35-36 rwhp.

Stage 4: Boring out the Throttle body to 36mm and adjusting the intake runner for it will result in close to 38 rwhp.

Stage 5: Is still in the stars, could include a shorter stroke and going for the 7000 rpm.

The cost depends a lot on your input and creativity. Stage 1 is of course the easiest to obtain and the ACE Airbox Kits are still available on eBay, which is a good start.

[ace.cafe]

Thanks for the synopsis Joe_535i.

[wr6133]

Thanks for the answers guys.

Joe that synopsis is excellent, nice to have the stages and the effect they had laid out like this.

[ace.cafe]

I was looking on the 650 twin forum, and they had a dyno chart thread going there with stock 650 vs one with a Power Commander and a booster plug mod. I copied that dyno chart directly from that thread and posted it up here.

I thought it looked interesting, so I compared it to our Ace 535 GT dyno chart.
Take a look at the 650 twin hp vs our 535 single hp chart. Especially compare the curves up to 6500 rpm, which is where our rev limiter cuts off.

First chart is the 650. Green line is stock. Blue line is modified 650.

Second chart is our 535.

Pretty damn close call.
Even when the stock 650 revs past what we can do, it only gets about 1.75 hp more than we do. At 6500 rpm, it's a dead heat. Compare the curve from bottom to top, and at every grid on the charts.  Very close all the way.
Granted, we put a lot of work into the 535, but it still basically matches the 650 twin power of that particular bike. And, the 535 is lighter..