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Rolling Road Results & Dynographs Been on the rollers? Post your results here!

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Old 15-05-2011, 06:17 PM   #1
sandy309
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1600 and 1700 TU 16v race engines

Engine Dyno results from recent test/mapping sessions of two of my competition engines. Figures are DIN corrected steady state settled/stable torque readings from calibrated engine dyno. I don't want to divulge exact specs!



One of them on the test stand:

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Old 15-05-2011, 06:20 PM   #2
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cold you pm a price of wat one of these engines would cost please

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Old 15-05-2011, 08:58 PM   #3
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Be sure to be sitting down when you receive a figure Matt engines like these are not cheap!

Sandy, am I correct in guessing that the 1690cc engine would be on slightly milder cams given the figures are quite close to that of the standard capacity engine?

Quite impressive that there's no holes whatsoever in the torque spread.

Are these in Circuit or rally cars?
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Old 15-05-2011, 08:59 PM   #4
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Indeed sit down! lol
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Old 15-05-2011, 09:01 PM   #5
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just manged to get up . . . . . . . . . . .
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Old 16-05-2011, 05:06 AM   #6
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LoL, as I'm sure you can see from the breakdown, it's the parts that cost! Most of my customers start with a lower spec and build up in stages, an outright full on build is rare. Plenty companies charging alot more for less too.

The cam specs are virtually the same on both engines, the inlet and exhaust pipe tuning on the 1690cc is relatively compromised though. Neither engine is perfect spec.
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Old 16-05-2011, 05:49 AM   #7
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I think you need to break the markets in other areas now. Maybe start with the north-west!!
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Old 16-05-2011, 06:54 AM   #8
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Haha, and what I need is a promotional entry?!
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Old 16-05-2011, 09:49 AM   #9
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Quote:
Originally Posted by indigorallye View Post
I think you need to break the markets in other areas now. Maybe start with the north-west!!
North east also - I will be a test pig in the northern saloons? next year!
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Old 16-05-2011, 09:12 PM   #10
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Fantastic results if neither are ideal builds!
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Old 17-05-2011, 05:17 AM   #11
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Thanks
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Old 24-05-2011, 02:59 PM   #12
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nice one
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Old 30-05-2011, 01:21 PM   #13
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looks nice

how come u got the trigger wheel on the opposite end to the fly? is it just for testing purposes on the dyno i take it or is there some funky flywheel lol?
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Old 30-05-2011, 08:29 PM   #14
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He already had a very light steel flywheel with tiny clutch and no trigger teeth, so we fitted one of Colin's discs to the nose and made the bracket. That engine I used my latest design very lightweight slipper pistons and rods too and the throttle response is incredible, it sounds more like a bike engine than any other TU I've heard!
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Old 30-05-2011, 08:35 PM   #15
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Sandy Brown pistons! awesome lol... interesting outer injectors too, i've not seen any like them before :-s

I've been thinking of trying stand-off injectors but somehow within an enclosed airbox... not sure if its worth the effort or not really though...
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Old 31-05-2011, 06:18 AM   #16
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Testing is the only way to find out and you need repeatable testing at that, which is why most of my development is done on the engine dyno these days. Air boxes can have a dramatically bad effect on the power curve, so again, testing is the only way. I don't like airboxes on my engines, any theoretical beneift of cold ait feed seems to be irrelevant out on the road/track, where I always see close to ambient air temp in the engine bay, as long as you're not pulling air off the back of the rad. They spoil the induction noise too, I hate that.
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Old 31-05-2011, 07:25 AM   #17
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I don't like airboxes either, but pretty much essential on an autograss car! :-(

when i say 'airbox' i guess what i mean is a really tall filter more than an actual airbox lol

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Old 31-05-2011, 07:50 AM   #18
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A Fiesta ST dnf'd in my race on Saturday.
I spoke to him afterwards and he showed me why.
He runs ITB's, front mounted and with an ITG filter.
The filter had a large slice right through it, and the metal gauze!!! Guess where the offending item is?

So, an air filter can't save you from everything!
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Old 31-05-2011, 08:12 AM   #19
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True and we've seen the gauze break up on ITG filters and get ingested, but on the whole they are ok.
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Old 27-06-2011, 08:40 PM   #20
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What discipline is the big hitter being used in?
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Old 26-07-2011, 05:15 PM   #21
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With the location of our trumpets on these engines Sand, what's the likelihood of anything damaging actually getting into the trumpets should one not choose to run an air filter?
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Old 26-07-2011, 05:46 PM   #22
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Not a problem unless it happens! I've known more of these ingest part of the air filter than anything foreign, but an air filter is still preferable. Stones from the wheel arch litter that bottom bulkhead lip frequently.
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Old 26-07-2011, 06:58 PM   #23
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And rubber too!!
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Old 26-07-2011, 07:21 PM   #24
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Yes!
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Old 26-07-2011, 10:34 PM   #25
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I love the risk
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