Buying a turbo with no wastegate.

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What's a spark plug???

49

03-01-2010, 11:51 PM #1

I have been seeing quite a few turbocharges on Ebay that dose not have a wastegate built to them, well if theres no wastegate would the turbo overboost?? My question is What do you do to prevent it from overboosting?? Why is there a non wastegated turbo?? I am just a little lost Huh

This post was last modified: 03-01-2010, 11:53 PM by Actros617.

1984 300SD 4 Dr Diesel Sports Car (ARGUS) (Mine)

1987 300SDL Cruiser STOCK (My fathers)

Actros617

03-01-2010, 11:51 PM #1

1984 300SD 4 Dr Diesel Sports Car (ARGUS) (Mine)

1987 300SDL Cruiser STOCK (My fathers)

~~ForcedInduction~~

Banned

3,628

03-02-2010, 12:28 AM #2

Non-wastegated turbos are terrible for daily driving and performance. They do not produce maximum boost until maximum RPM and fueling, which is also what limits boost pressure on them.

ForcedInduction

03-02-2010, 12:28 AM #2

Non-wastegated turbos are terrible for daily driving and performance. They do not produce maximum boost until maximum RPM and fueling, which is also what limits boost pressure on them.

willbhere4u

Six in a row make her go!

2,507

03-02-2010, 08:26 PM #3

You can add a wast gate to any turbo manifold some care are designed to have an external wase gate to save space

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

willbhere4u

03-02-2010, 08:26 PM #3

You can add a wast gate to any turbo manifold some care are designed to have an external wase gate to save space

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

TotalDiesel
Unregistered

03-03-2010, 09:00 AM #4

Many of the non-wastegated turbos are designed for constant speed engines or standalone generators. which rarely have dramatic changes in fueling and load. for cars, no good.

TotalDiesel

03-03-2010, 09:00 AM #4

Many of the non-wastegated turbos are designed for constant speed engines or standalone generators. which rarely have dramatic changes in fueling and load. for cars, no good.

Einar

GT2256V

118

03-07-2010, 09:15 AM #5

When you use a turbo W/O wastegate, you can use an external wastegate.

Einar

03-07-2010, 09:15 AM #5

When you use a turbo W/O wastegate, you can use an external wastegate.

~~ForcedInduction~~

Banned

3,628

03-07-2010, 09:33 AM #6

Unfortunately, an external wastegate does nothing to alter the slow spooling nature of them.

ForcedInduction

03-07-2010, 09:33 AM #6

Unfortunately, an external wastegate does nothing to alter the slow spooling nature of them.

willbhere4u

Six in a row make her go!

2,507

03-07-2010, 03:53 PM #7

That depends on How the turbo was made! some non internal waste gate turbo are designed for external waste gates for racing purpose and make boost just the same as an internal WG! internal WG tend to have boost creep! that why race car and a lot of high performance applications use external waste gates!

spooling has noting to do with a waste gate it all about compressor sizes and trim and application!

all be it most turbos with out waste gates that aren't custom made for your application wont work well
as they are designed usually for stationary engines running at a peak power/constant rpm

In other words a non waste gated turbo DESIGNED to work with an external waste gate works just fine

This post was last modified: 03-07-2010, 03:55 PM by willbhere4u.

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

willbhere4u

03-07-2010, 03:53 PM #7

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

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