Turbo advice

[Swamp Donkey]

If you could ever believe that someone is almost done bombing, well that person is me. To make me complete, I am looking for a different turbo housing / turbo. I have in my mind a 16 cm wastegated turbo if that is even possible. The price on a 16 cm non-wastegated turbo is really good though. What are the benifits/drawbacks of a non-wastegated turbo. Have a look at my sig and tell me what you guys think will work well with what I have right now. I was on PDR web site and saw the prices, and Piers modified turbo is about 5x more than a 16cm non-wastegated turbo housing.



P. S. Now that I think about it, my BOMBing is no where near to being done. Who am I trying to fool?

 

[R.ebel]

Turbo

If you aren't having a problem with EGT's running to high there is no point in going to a different turbo or turbo housing. The 16cm housing will lower you egt's 100 to 150*F, but you will have more smoke and slightly less max boost and more turbo lag especially with the auto transmission.



I just today installed a PDR modified HX35 with a non-wastegated 16cm housing on my truck. The truck has been bombed to the 350 HP level and I was having some minor problems with EGT's causing me to lift My initial impression with the new turbo is good , running empty and not towing anything on the local test hill I was able to stay in the throttle longer before I lifted at 1350*F.

The turbo does everything that Piers said it would ,earlier and quicker spool-up lower egt's and 3-4 lbs more boost. The extra boost has helped to lighten up the heavy smoke I had with the old turbo.

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[Swamp Donkey]

I can and have pegged my 1500 degree pyro. So egt's are a problem.

 

[R.ebel]

Turbo's

Maybe you should consider an HX40? To be effective though I think you need to be in the 400 HP fueling range to drive one of those puppies, the lag is even worse with the HX40... not to mention that several of them have grenaded



Rumor has it that a PDR has a twin set-up in the works

 

[Swamp Donkey]

I will stay away from the HX 40. With the cost and questionable reliability, it is not worth it for me. I have even been witness to one of them blowing up. BD was doing a show and the guy driving the trucks doing burnouts and showing the power of the BD truck blew one up. Shortly after I was talking to him and he did not recomend one of those HX 40 turbo's for me. With the amount of them just with people on the TDR and seeing that one grenade is enough convincing for me.



As for 400 hp, I don't think I am anywhere near that, but who knows once I get my new TC & VB installed it may feel like it.

I think I would need a little more than 370's a TST #6 AND GOV SPRING KIT TO GET TO 400 (stupid caps lock button) hp. That is really all I have done for engine mods that really count.

 

[BushWakr - RIP]

Strangely enough my experience has been slightly different. I found the smoke improved going from the 18cm to the 16cm housing. I also went with that housing for $ reasons. I found the change too subtle for what I was expecting and intend on going to the 14cm wastegated after I turn Bill K. loose on the TC/VB.

Spool-up came quicker, got about 3-4 lbs more boost, and slightly better EGT's with the 16 as opposed to the 18cm. Generally, good value for the cost which is why it seems fairly popular for the cost conscious like me.

FWIW

Ps, One day I hope to look one of your legendary "mutant moose" through my 3x9 . 300Win

Regards, Bush'

 

[cumminsgetme]

The biggest problem with the 40's is that few people take the time to check tolerances and balance. In my opinion the only place to get a 40 is from Joe D. Do you really think these places hand inspect the turbos before they take your 1000 bones.



Bush Wakr- that's strange that your egt's got better going from an 18 to a 16 ..... they should have gotten worse. The smoke should improve going from 18 to 16 which it sounds like it did and even more so if you go with a 14... . but the smaller that housing gets the higher egt's are going to get.

 

[BushWakr - RIP]

I think the housing was an INDIRECT cause for EGT improvements,, I was able to ease up on fueling with the injector/housing combo. Atleast thats what I thought was a reasonable explanation. I hate it when I have to start scratching my head and thinking... . hmmmmmmmm.



Bush'

 

[jsimpson]

what about water injection to lower egt?

 

[Deezul1]

Check the "Big Honking Filter" thread, reports of up to 300deg drop in egt with it. Maybe a cheap way out.

 

[Sleeper]

Piers suggested a 16 Non wastegated for my truck several years ago. We found that with the plate in the "mid" range, the EGT was acceptable (1350) for pulling a light trailer on long hills. If I try to hold too high rpms in fourth this will climb to 1500. There are very few hills in BC that I can't climb in 5th at or greater than the speed limit.



Sleeper

 

[J@NWC]

Swamp Donkey

I ran the stock turbo for 70,000 mi with fairly good fueling most of that time with the waste gate pluged off. I then put the 16cm2 exhaust housing on, lost a little bottom end but also lost some egt's. More fueling created the need to loose more egt's. HX40 time, once installed 125-175mi latter BOOM uninstalled thru tail pipe. Back to the stock turbo with 16cm2 housing. More mods(imagine that ) then Piers tells me he has a new turbo, so I try again. You stated you can bury 1500 deg on pyro well I,ve had this problem for a while. To me an improvement is if it takes longer to bury said pyro. with PDR's Hybred the decreased egt's are just as substancial as the 40 with much better low end/ mid range throttle response much better than 40. As far as price the 16cm2 housing you are talking about is just thet an exhaust housing, you use the compresser side of you stock turbo. PDR's Hybred is every thing but the exhaust housing so you use the exhaust housing you have or if you opt you will need the 16cm2 housing to go with it. It will bolt right up you don't need to change down pipes(like with HX40) and can tun turbo mounted exhaust brakes with it (can't with HX40) I've had the Hybred on for aprox 8-8500mi now and have been harder on it than either of the other turbo's and it continues to work flawlessly . I still can't find a down side to it.

Jason

 

[Swamp Donkey]

J@NWC



I guess a call to Piers is in order... . when I have money! LOL Sounds like your pretty happy with your set-up. I will wait and see, maybe Mrs. Swamp Donkey will think I am a good boy aroung christmas.



BushWakr,





The Swamp Donkey season opens here on the 15th! Already know where a little legal immature one is, and I can shoot him and pick him up with my tractor. Very easy hunting when I am a farmer.

 

[J@NWC]

Swamp Donkey

I told Piers when I put the Hybred on that I would post what I thought about it or either way I said I would be as objectionable as possible. As of now I can't find a down side,and I have evan tried most of the time thereis some sort of a trad off. With the HX40 it's slow low mid spooling. With the Hybred maybe it's not as great of loss of egt's but I really can't see a measurable diffrence between the two. And I have been as hard or probably harder on this turbo as the stock one. If I can find a down side I will let you know.

Jason

 

[HEMI®Dart]

J@NWC





Is your truck a five speed or an auto? For some reason the HX-40 works well on a 12 valve, 5 speed. Not as good as on an auto trannied truck. I loved mine. Not much more lag than the stock HX-35. What little I lost in low end spoolup, I got back 10 fold in mid range & high rpm's. It seemed like a 50HP/100 ft lbs torque increase. I only had Bosch 215 injectors in the motor at the time too. My boost gauge used to go from 10 lbs to 45lbs in an instant. Never saw over 1000 degrees on my pyrometer. I felt the personality of the truck changed with it able to breath freely. The exhaust tone got 25% louder. Even at no boost, with the free breathing ability of the 40 and 4" down pipe, it still got up and went.



I like the idea of Piers's new hybrid turbo and have heard all positive things. But it still has the restricive HX-35 exhaust housing, one of the things most of us swap turbos to get rid of.





For guys below and up to 350HP Piers's turbo is probably the way to go. He says this at his web site.



HP above 350 Twin Turbos' would probably be the way to go. You wouldn't lose any low end spoolup, yet they would breath like an HX-40. Piers is working on a system now. He said you can't get EGT's over 1300 @ 65 lbs boost. It's supposed to be affordable ( Dave Mitchells TT kits are $4K). Piers said we don't have to relocate the right side battery (nice). I'm waiting to see it.

 

[Swamp Donkey]

HX-40, twin turbo's, Piers's hybred, plain old 16cm non wastegated, or just keep the stock. Can't do that!



I'm like a kid in a candy store! But I guess I need to find out where I am going with my BOMBing and get the appropriate one,or twin!

 

[J@NWC]

Hemi Dart

I know that the big restriction is the exhaust housing of the 35 but, I ran the 40 and really don't see a difference in how long it takes to bury the pyro. I'm not saying the 40 isn't a good choice but I like the Hybred better. I am running way more fuel now than when I had the 40 on and still can't see going back to the 40 especially after the tailpipe uninstall. My truck is a 5spd to answer your original question. As far as twin turbo's who knows what may be next

Jason