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5.5lb ROE DYNO - Freshly installed last year

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5.5lb ROE DYNO - Freshly installed last year
Old July 28th, 2019, 09:35 AM   #1
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5.5lb ROE DYNO - Freshly installed last year

First off this is a Mustang Dyno not a Dynojet so figures are roughly 13-15% lower and it was a hot day yesterday and humid.

Second the car didn't feel right after install and you can tell from the first dyno run - running 9s fuel mixture - rich rich rich and power suffered.

After a more modest tune thanks to Scott from ROE and emailing back and forth we got it to mid 11s and power increased and car is much more responsive and curve more smoother. I know we can twick it more but I rather be safe than too lean.

I am not sure if the tune that comes with the system is very very conservative but I strongly suggest you dyno tune it after install.

Car is bone stock (either than supercharger) and cat and muffler delete. No other mods. 2000 ACR with 23,000 miles

1st pull (very safe tune)
410hp
450trq
Dynojet conversion roughly
470hp
515trq

2nd pull after improving AR mix
460hp
500trq
Dynojet conversion roughly
525hp
570trq

I am impressed with trq but I thought I would get more hp - maybe another 15-20. But I have seen similar runs with higher hp but lower trq.
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Last edited by Jeremias06; July 28th, 2019 at 09:48 AM.
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Old July 28th, 2019, 02:16 PM   #2
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new roe ? newer plenum?
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Old July 28th, 2019, 03:27 PM   #3
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Those numbers don't seem right. And the Mustang is lower by 5-8%, not 15%
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Old July 28th, 2019, 05:33 PM   #4
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Thats what I thought but I compared to data online with other mustang dyno runs and the numbers are correct. They are usually 13% in power difference lower for the Mustang. If you search online you can see this. People have tried both dynos same day and power difference are around 13% and some even up to 18% depending on the Dyno age etc.

here is an example around 14% difference
https://www.viperclub.org/vca/thread...umbers.535060/

Car runs great and Scott from ROE says numbers are good for Mustang Dyno. Curve is also nice so don't see an issue. On a side note the hood was open, I should of closed it to allow cooler air into air damn probably would be a bit higher also.

Anyone else have a roe with 5pound pulley dyno they can post on a mustang or dynojet without meth injection?

Quote:
Originally Posted by 99RT10>S View Post
Those numbers don't seem right. And the Mustang is lower by 5-8%, not 15%

Last edited by Jeremias06; July 28th, 2019 at 05:50 PM.
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Old July 28th, 2019, 05:35 PM   #5
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Quote:
Originally Posted by Holyfield619 View Post
new roe ? newer plenum?
the last batch to be made, installed last november thats what I meant.
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Old July 28th, 2019, 06:08 PM   #6
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What was the baseline before install? I thought these did roughly 400whp stock?
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Old July 28th, 2019, 07:04 PM   #7
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Quote:
Originally Posted by Cap'n Hook View Post
What was the baseline before install? I thought these did roughly 400whp stock?
Didn't do one

here is a link for a stock viper on a mustang dyno
https://www.viperalley.com/forum/vip...ers-stock.html

365.2 rwhp and 398.3 rwtq
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Old July 31st, 2019, 12:41 PM   #8
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Seems real hard to get an accurate idea of expectations without a baseline. Otherwise, if itís tuned correct, drive it and be happy.

What confirmations exactly are you looking for? Is this the new ROE system? What numbers did they tell you to expect? Have you inquired with them?
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Old August 1st, 2019, 07:42 AM   #9
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Seems to me you need exhaust on 1.7 rockers, that will help get those numbers up. I would have thought a 6# roe would net in the 550who range?
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Old August 1st, 2019, 03:40 PM   #10
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I'd be curious to see the timing curve...
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Old August 1st, 2019, 08:11 PM   #11
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thanks for all the comments, I am happy. I just wanted an extra kick of power. Recommend the ROE to anyone wanting an extra power surge.
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Old August 6th, 2019, 05:41 PM   #12
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I hit 661rwhp and 683rwtq on a 6.5# pulley running on a mustang dyno.
Are you on the older 2.4L unit or the newer 2.8L?
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Old August 7th, 2019, 07:39 PM   #13
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Quote:
Originally Posted by bottlefed View Post
i hit 661rwhp and 683rwtq on a 6.5# pulley running on a mustang dyno.
Are you on the older 2.4l unit or the newer 2.8l?
2.4
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Old August 8th, 2019, 11:55 AM   #14
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Old August 9th, 2019, 01:00 PM   #15
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Quote:
Originally Posted by BOTTLEFED View Post
I hit 661rwhp and 683rwtq on a 6.5# pulley running on a mustang dyno.
Are you on the older 2.4L unit or the newer 2.8L?
...and if I recall, self-tuned on a VEC. Wow.
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Old August 12th, 2019, 11:48 PM   #16
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460 HP with headers, exhaust , intake, tune. on 97 GTS
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