Another Hellion Twin-Results

[NVRENUF]

Only had the car to the track for a handful of passes. Still need to get the car launching harder. Car goes mid 10’s@136mph at 7000’+ DA on a 1.9 60ft. 20” Toyo R888 leaving with no boost, 4050lbs with driver. Has a bunch more in it once I get it launching. Shifts are 7300-7600 rpm.

Not a happy camper at the moment however. Only 700 miles on the kit, 8 passes and 3 dyno pulls and one of my turbos just failed while street driving. Sending both back to precision under warranty but am really disappointed that a turbo that hasn’t even been pushed would fail already. Not to mention the compressor wheel ate into the he housing and sent metal powder all through my motor.

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[Tricky Dickey]

Exactly what turbos do you have?

 

[markmurfie]

At high elevation(23.4inHg) a NA or supercharged car would be missing 3PSI in their manifold compared to if they were closer to sea level, as they are totally dependant on the atmospheric pressure. Hence they would get the correction factor. A turbo's waste gate is based off getting the manifold to a certain pressure no matter the atmospheric conditions. All that matters is the boost controller or spring pressure. The turbos just spin to a higher RPM and that missing 3PSI is easily made up for mechanically. When the correction factor is applied, its making up for air that was never missing. So the dyno numbers can be 75-100hp higher than what they really are.

When you go up in elevation, turbo cars loose less HP when compared to NA/ SC cars, they don't start to make more power than they did at sea level like the correction factor indicates. You also need to factor in how fast you have your turbo spinning to maintain the airflow, they can over spin and blow up easier at higher elevations.

 

[NVRENUF]

Exactly what turbos do you have?

The precision 55’s that come with the kit

 

[Ninjak]

Ugh..that kind of sucks. Actually that does suck. Hard. But hopefully the next pair will be better without issues.

 

[ahl395]

Only had the car to the track for a handful of passes. Still need to get the car launching harder. Car goes mid 10’s@136mph at 7000’+ DA on a 1.9 60ft. 20” Toyo R888 leaving with no boost, 4050lbs with driver. Has a bunch more in it once I get it launching. Shifts are 7300-7600 rpm.

Not a happy camper at the moment however. Only 700 miles on the kit, 8 passes and 3 dyno pulls and one of my turbos just failed while street driving. Sending both back to precision under warranty but am really disappointed that a turbo that hasn’t even been pushed would fail already. Not to mention the compressor wheel ate into the he housing and sent metal powder all through my motor.

Ouch. That sucks. Hopefully warranteed with no issues...

 

[HELLION TURBO]

Only had the car to the track for a handful of passes. Still need to get the car launching harder. Car goes mid 10’s@136mph at 7000’+ DA on a 1.9 60ft. 20” Toyo R888 leaving with no boost, 4050lbs with driver. Has a bunch more in it once I get it launching. Shifts are 7300-7600 rpm.

Not a happy camper at the moment however. Only 700 miles on the kit, 8 passes and 3 dyno pulls and one of my turbos just failed while street driving. Sending both back to precision under warranty but am really disappointed that a turbo that hasn’t even been pushed would fail already. Not to mention the compressor wheel ate into the he housing and sent metal powder all through my motor.

Sorry to hear you had a turbo issue. Please stay in contact with us when you get the turbos back so we can make sure everything is in order and you do not see this issue again. We have great results with this kit and want to make sure you are happy with the results.

Team Hellion

 

[3beeps]

Only had the car to the track for a handful of passes. Still need to get the car launching harder. Car goes mid 10’s@136mph at 7000’+ DA on a 1.9 60ft. 20” Toyo R888 leaving with no boost, 4050lbs with driver. Has a bunch more in it once I get it launching. Shifts are 7300-7600 rpm.

Not a happy camper at the moment however. Only 700 miles on the kit, 8 passes and 3 dyno pulls and one of my turbos just failed while street driving. Sending both back to precision under warranty but am really disappointed that a turbo that hasn’t even been pushed would fail already. Not to mention the compressor wheel ate into the he housing and sent metal powder all through my motor.

Mine failed within a year too. Top mount Hellion kit with journal bearing 5562s. Mine lasted about 4,000 miles and were raced plenty, though.

I only had to pay for the upgrade to ball bearing. The repairs were covered under the turbo warranty with Precision.

 

[NVRENUF]

Mine failed within a year too. Top mount Hellion kit with journal bearing 5562s. Mine lasted about 4,000 miles and were raced plenty, though.

I only had to pay for the upgrade to ball bearing. The repairs were covered under the turbo warranty with Precision.

How many miles with the ball bearing upgrade? I guess it may be worth considering but am surprised to have issues so early on.

 

[3beeps]

How many miles with the ball bearing upgrade? I guess it may be worth considering but am surprised to have issues so early on.

About 2000 so far. No issues at all.

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