stingray719
TY 4 Stroke God
Finished the EVO turbo install and got to take it out for some real world testing.
So you don't get bored too quick let me give the highlights. Testing was at Grand Mesa at 10k altitude with dry powder snow and around 10 degrees to 20 degrees outside temp.
1. Electronics = truly install and ride, no adjustments
2. Electronics = EVO turbo flash, hits rev limiter at 9750rpm highest recall rpm was 9809
3. Quality of parts = I was worried about the water to air cooler in the bottom of the sled, but I hit a rock and tore up the bottom of the sled and even tore the bolts through the aluminum but the cooler survives (see small dent in cooler in pic below)
4. Airbox temp = high 20's air intake temp most of the day when brand X turbo with full intercooler was 55 to 65 degrees.
5. Water cooled turbo = no heat shield and MUCH lower temps under hood
6. Low mount of turbo = less weight up high
7. Air intake is just slightly outside the hood = stock looking
The bad
1. Instructions could be better = I made a video to supplement the instructions (https://www.youtube.com/watch?v=pHwO2CYyv0k) that should fix that issue
2. Install is for intermediate or advanced mechanics = if you don't work in the garage much this install might be a little much for you.
3. You will have face pain from the grin you get when you pound the throttle.
Now for the testing
I switched the clutching that came in the kit for my own 8FS - soft start spring combo just for personal preference after the initial testing of the Dalton QAY 70 that come in the kit.
Turbo sled #1 was 2015 Viper MPI Yamaha base kit with EABC (electronic altitude boost controller)unplugged. Sled 2 is our red Viper MPI Yamaha base kit with EABC on and running with under hood intake. Sled 3 is Brand X 240hp turbo kit with intercooler and under hood intake. sled 4 is my Viper with EVO 210/275hp kit with external air intake.
the non EVO turbos all ran around 55 to 65 degree air intake temp. The EVO was from 25 to 35 degree intake temp in the same place same time as others.
The non EVO turbos all hit rev limiter at around 9200, the EVO turbo sled with EVO flash rev limiter is set at 9750.
Brand X lost a full day reprogramming his turbo with his fuel controller to run correctly. Last year another but different Brand X turbo had similar issues with fuel controller and altitude settings here.
MPI did not need additional setting and in fact we left our red viper on low altitude level setting for an accurate test. Both MPI ran well, with the EABC Viper producing a lot more power as expected. Our MPI Viper has the OSP Magnetic weights and the Barn Of Parts Soft Start spring with a 6mm shim in to stiffen the primary spring. Our MPI engages at 2700 rpm and the other MPI sled with brand X clutching engaged at around 3600 to 3700. That sleds owner preferred the lower engagement ours had.
All 4 turbo sleds had acceptable but less than perfect idle at 10k altitude as expected.
The MPI kits had a linear acceleration and were hard to tell had boost other than the fact they were faster than stock, I considered this a plus. The EVO kit with the included clutching was similar, but I like more on the bottom so I changed to the 8FS and soft start spring. To each his own on clutch settings, and nothing wrong with the EVO included clutching
BOTTOM LINE FOR ME
MPI was best for budget turbo. The girlfriend really likes hers.
EVO hands down for premium turbo, truly install and ride. 210/275 becomes 220/285 with EVO flash that raises rev limit to 9750. 220hp on pump gas with no head shim.
So you don't get bored too quick let me give the highlights. Testing was at Grand Mesa at 10k altitude with dry powder snow and around 10 degrees to 20 degrees outside temp.
1. Electronics = truly install and ride, no adjustments
2. Electronics = EVO turbo flash, hits rev limiter at 9750rpm highest recall rpm was 9809
3. Quality of parts = I was worried about the water to air cooler in the bottom of the sled, but I hit a rock and tore up the bottom of the sled and even tore the bolts through the aluminum but the cooler survives (see small dent in cooler in pic below)
4. Airbox temp = high 20's air intake temp most of the day when brand X turbo with full intercooler was 55 to 65 degrees.
5. Water cooled turbo = no heat shield and MUCH lower temps under hood
6. Low mount of turbo = less weight up high
7. Air intake is just slightly outside the hood = stock looking
The bad
1. Instructions could be better = I made a video to supplement the instructions (https://www.youtube.com/watch?v=pHwO2CYyv0k) that should fix that issue
2. Install is for intermediate or advanced mechanics = if you don't work in the garage much this install might be a little much for you.
3. You will have face pain from the grin you get when you pound the throttle.
Now for the testing
I switched the clutching that came in the kit for my own 8FS - soft start spring combo just for personal preference after the initial testing of the Dalton QAY 70 that come in the kit.
Turbo sled #1 was 2015 Viper MPI Yamaha base kit with EABC (electronic altitude boost controller)unplugged. Sled 2 is our red Viper MPI Yamaha base kit with EABC on and running with under hood intake. Sled 3 is Brand X 240hp turbo kit with intercooler and under hood intake. sled 4 is my Viper with EVO 210/275hp kit with external air intake.
the non EVO turbos all ran around 55 to 65 degree air intake temp. The EVO was from 25 to 35 degree intake temp in the same place same time as others.
The non EVO turbos all hit rev limiter at around 9200, the EVO turbo sled with EVO flash rev limiter is set at 9750.
Brand X lost a full day reprogramming his turbo with his fuel controller to run correctly. Last year another but different Brand X turbo had similar issues with fuel controller and altitude settings here.
MPI did not need additional setting and in fact we left our red viper on low altitude level setting for an accurate test. Both MPI ran well, with the EABC Viper producing a lot more power as expected. Our MPI Viper has the OSP Magnetic weights and the Barn Of Parts Soft Start spring with a 6mm shim in to stiffen the primary spring. Our MPI engages at 2700 rpm and the other MPI sled with brand X clutching engaged at around 3600 to 3700. That sleds owner preferred the lower engagement ours had.
All 4 turbo sleds had acceptable but less than perfect idle at 10k altitude as expected.
The MPI kits had a linear acceleration and were hard to tell had boost other than the fact they were faster than stock, I considered this a plus. The EVO kit with the included clutching was similar, but I like more on the bottom so I changed to the 8FS and soft start spring. To each his own on clutch settings, and nothing wrong with the EVO included clutching
BOTTOM LINE FOR ME
MPI was best for budget turbo. The girlfriend really likes hers.
EVO hands down for premium turbo, truly install and ride. 210/275 becomes 220/285 with EVO flash that raises rev limit to 9750. 220hp on pump gas with no head shim.
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Good comparo. Were all other sleds under hood intakes? If so that is obviously going to affect intake temps.
Did that lower bulkhead damage just happen?
stingray719
TY 4 Stroke God
Yes they were under hood, not sure that explains an over 30 degree difference but maybe. Let's find out, anybody with an intercooled turbo run under 30 degrees on intake temp?
stingray719
TY 4 Stroke God
Hit a buried rock under full power, initial hit was cooler and tore through the back two bolts and hit tunnel. Cooler just had small ding, I was quite impressed.
- Joined
- Nov 29, 2009
- Messages
- 1,230
- Age
- 49
- Location
- sabattus, maine
- Country
- USA
- Snowmobile
- 76 exciter, 87 phazer, 89 bravo, 00 srx x3, 01 srx, 02/04 viper, 06 ape
Not saying it's all of it but it must be some of it. I'd like to see a good non partisan side by side myself.
stingray719
TY 4 Stroke God
And I agree that is why I asked for real world experience of others and air intake temps. I do not think it is possible with all the under hood heat to get under 35 degree air intake temp without a water to air cooler .....but I could be wrong lets see.
- Joined
- Nov 29, 2009
- Messages
- 1,230
- Age
- 49
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- sabattus, maine
- Country
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- 76 exciter, 87 phazer, 89 bravo, 00 srx x3, 01 srx, 02/04 viper, 06 ape
And when I say "non partisan" I'm not saying you're partial because you own the Evo system. I'm just saying real world.....like you did and I appreciate. ....not manufacturer claims
stingray719
TY 4 Stroke God
Its a fair question, I have seen reviews here that appeared tainted to me with a conflict of interest. I am not offended by you asking.
Good reason for a skid plate or even just something off the back of the cooler to overlap smooth in the direction of travel.
loudelectronics
TY 4 Stroke Guru
Mountaintech should make a skid for these. I did the same with mine. Ended up making a skid my self out of diamond plate.
I have an MCX190 on mine. I could not run the intake inside the sled for riding powder. The steam would choke it out. I had to snorkel it with the CR Racing snorkel. Intake temps are around 35* I believe. Have to check again as it has been a long while.
I have an MCX190 on mine. I could not run the intake inside the sled for riding powder. The steam would choke it out. I had to snorkel it with the CR Racing snorkel. Intake temps are around 35* I believe. Have to check again as it has been a long while.
Even if the heat exchanger just had a tail that extended back would help. Lesaving that short strip of bulkhead exposed to frontal impact is not a good idea. Stock the oil access panel would have protected it.
nherbst454
Pro
With this inter cooler, how do you go about accessing the oil filter and block oil drain plug?
stingray719
TY 4 Stroke God
I have not done it yet but assume I take the 4 bolts out of cooler and move it to the side enough to get in.
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