16 cm turbo housing.

[countryboy]

I'm thinking about putting a 16 cm turbo housing on my 93 question one will I have to upgrade the transmission my truck is stock with the exception of a straight pipe question two what else would I need if i did get the housing and how hard is it to put on.

 

[Bfulgham]

Countryboy: Although I dont think cahanging the housing will necissitate upgrading the housing I will leave that to someone more qualified.

I just finished installing a 16cm on my 93 and had no unexpected problems except for the instructions for ( lightly tapping) off the old housing. Even with multiple applications of penetrant this procedure rapidly turned to (heavily pounding).

Some instructions indicate you can remove the housing from the turbo with the turbo still in place on the motor , I dont see how this is possible. E-mail me if I can be of any assistance.



Bob

 

[countryboy]

I wasn't planning on putting it on I've got a friend that is good with diesels and I was going to have him put it on i just wondered

if there was any specail tricks or something. Will I have to upgrade the transmission this is my main concern it is an automatic I will have to get gauges I'm going to put on pyro,boost,auto trans

temp gauge is there anything else I need to moniter. thanks a bunch you guys are great this is the best 35 bucks I've ever spent

 

[rdodd]

Changing to 16 housing does'nt really increase hp, it just helps eliminate turbo lag so trans should not need any motifications.

 

[Shrimpy]

Hey Countryboy you may want to think this one thru a little more. Your sig says you have a 93, if so you have a 18. 5 cm3 now and a 16 cm3 would not do much. I would save the $140. 00 and use it towards the Lucas inj. Piers says will be on sell next month.



Make sure that you have all of the easy adjustment out of the pump i. e. , Diaphram position. This really woke up my 92 as the taper was 180 deg out. Go to Dave Fritz page (look in links) and start reading and printing out stuff for the VE pump. You may have to dig a little but it will be well worth your time. Have it outside with you while working so it makes sense.



If drag racing is your bag go with the smaller 14 cm3 housing or possibly the 12 cm3. I personally don't know of many who have the 12, but plenty with the 14cm3.



If pulling is more your bag keep the 18. 5, and go with the Lucas, bump your timing and adjust out the smoke via Dave Fritz instructions. Remember read, read and read again!!!!!!



Also remember that the auto will soon sucumb to all this, so make preperations carefully. Good Luck... ... .....

 

[Paychk]

I may be wrong, but I thought that the intercooled 1st Gen's had 21 cm housing and the earlier 89-92. 5 had 18 cm??????

 

[Shrimpy]

91. 5 and 93's had 18. 5 cm3, 92's had the 21. 5cm3. At least that is what my 92 had. Look at Dave Fritzs' page he has all the info. Not sure about the pre intercooled. Jason you reading on here tonight

 

[Tim1]

Hey countryboy, one of the most important(in my opinion) for you to do with the turbo off is tap, I repeat tap the manifold for a pyrometer install either now or just put a plug in it untill you have more money. Some folks say you can do it with no problem with the turbo on, however I don't think its a good idea. It's real easy to do with the turbo off and I guarantee you will be glad you did! That turbo will work just fine on the 93 and if you add injectors,wow,wow,wow. Tim

 

[scott4glamis]

hey all, from what i have heard here the 91. 5 to early 93 had the 21cm2 housing and later in 93 the housing was changed to the 18cm2. so some careful I. D. ing of the offending culprit might save you some time and money, definately all non intercooled trucks have a smaller housing, 12cm2?. if i were in the 18cm2 crowd i think i would get injectors before changing the housing. of course pyro and boost guages would be a precurser to turbo/fuel improvements... ... ...

 

[bflood]

I changed my 93 from 18 to 16cm2 after I tweeked the pump. I like the improvement! Maybe a 14cm2 would have been a better choice but I didn't want to get into performance trade-offs, if any, and I was necessarily in a hurry.





Immediately after this I had to make a short notice, 5k mile hauling trip and burned up my manual GETRAG 5spd. Its an interesting story (including getting ripped off by a Dodge dealer #@$%! ) plus I have some questions so I will make a full post when I get time. Bottom line, I'm told the GETRAG bearings are poorly designed and suffer if you're a hauler :{ . What do you have for a transmission?





I did proceed backwards though. Should've got the pyro & boost gauges first[/U ], then tweeked the pump and added the housing. (What can I tell you . . I'm a newbe) Oo.



I don't know how you are going to resist tweeking the injector pump. Instant/easy power upgrade is is toooooo tempting. Good Luck!

 

[AlK]

The following is a list of the stock turbo housings for the first gen trucks:

89-91. 5 had 18. 5 housings WH1 turbo

91. 5-92 had 21 housings WH1 turbo

93 went back to the 18. 5 WH1 turbo

---

Al

 

[BushWakr - RIP]

I believe AlK is correct. My '93' had the 18. 5cm on it.

I went with the 16cm for mostly cost at the time. My younger brother (TDR=Woodie) has the 14cm wastegated Banks.

If I were to do it again (I plan to) I would go with the 14cm. wg/non wg either way.

I found the change from 18. 5 to 16 too subtle for my expectations. It DID spool quicker, and reach boost faster over-all but not what I had thought.

Lastly, if I remember correct, the 14cm is just fine for the HP our trucks are capable of generating unless you go hog wild including drugs. It should also help with smoke if you slip in some injectors and pump tuning.



JMO Bob

 

[Power Wagon]

I went to the 12 wastegated housing from the stock 18. Talk about a difference. It required re-learning how to drive the beast. There is, once you are moving, pretty much no lag. Although it takes time for the turbo to spool, at anything over 10 mph, the turbo will produce the high-pitched whine of full bore power almost instantly. Even stopped with my foot nailed on the brakes, stabbing the pedal means you start hearing it boost almost immediately, even not moving.



Once I change to the PW injectors, it will respond even faster. BTW, mashing the pedal at a standstill produces NO visible smoke at all, but the truck will begin to accelerate very strongly at about 1/2 to 1 truck length and you can hear the whistle.



I also noticed that when I still had the 18 housing, going from stock to straight pipe resulted in considerably faster turbo spool-up.

 

[rdodd]

POWER WAGON, would the 12 housing make a nice whissle even with stock exaust or banks set-up? Staight pipe is just to loud for me.

 

[bflood]

Turbo Rev's?

As one goes from an 18cm2 to a 14 or 12, is there some point where the turbo is getting into a red-line condition of rpm ? At some point does a smaller housing limit top end power because of the increased restriction?



Just curious, I can't afford to put another housing on so I'll stick with my 16cm2. I just haven't heard anyone mention any small housing limitations.