KwikKurt's Kwikspool Turbo!

[Devildog]

He is shipping his "kwikspool" " HX-40 in a 12cm housing" today and I should have it by tomorrow, I'm running a stock turbo now and pushing around 425-450HP this should make a big difference and with very little turbo lag, I'll post the results

Is anyone else running one?

 

[HoleshotHolset]

This "kwikspool" turbo interests me.....

An HX-40 with a 12cm2 housing would definitely spool quickly in comparison to other turbine housing options... . BUT, how is this going to affect EGTs? The increased airflow of the larger compressor section is going to help... . but the smaller turbine housing usually hurts the EGT scene in a bad way.....



Matt

 

[Stefan Kondolay]

Sounds interesting

 

[Don M]

I really like all the R&D some of the guys are doing. Personally I think the smaller housing will hurt EGT's as well.

Under about 425HP it would do well. Trying to get to 475 HP will never happen without serious heat.

475 HP is just about the limit on the 16 housing not to mention the 12.

Sounds like the 12 will be great for auto's with less than 425 HP.



Opinions of course... .



The 18 housing and the 40 is the one for HP levels over 475.



Don~

 

[Devildog]

He also has a 40 with a 14cm of course it will remove more of the egt than the 12cm, I dont do much towing at all maybe once or twice a year, he said he would swap the 12 for the 14 if I wanted, just pay shipping, sound like good customer service to me,

 

[Don M]

Again, all this R&D stuff is cool between the TDR guys.

You wont find as much of this on the Ford or Chevy sites.

And we are a small part of the market share compared to them.



From turbo's to air filtration we try it all... .....



So cool!

Please let us know how it all works for you.







Don~

 

[KWIKKURT]

Originally posted by HoleshotHolset



An HX-40 with a 12cm2 housing would definitely spool quickly in comparison to other turbine housing options... . BUT, how is this going to affect EGTs? The increased airflow of the larger compressor section is going to help... . but the smaller turbine housing usually hurts the EGT scene in a bad way.....



Matt

Matt, Here is my VHO on this subject. Compared to the Hx35: I am not sure how the "Kwikspool" 12cm housing will "hurt" the egt's. The EGT's will be helped / lowered by the folowing reasons.



1. The larger compressor section of the Hx40 delivers more Volume and lower temp of a air charge = Lower Egt's



2. The larger Turbine wheel of the Hx40 is less restrictive than the Hx35 = lower exhaust manifold pressure & lower Egt's even with the 12cm housing.



3. We also do some other machining/ to help the 12cm be alittle more free flowing without effecting the low end response. I will have several variations available in a short while as soon as I get my new business location started.



4. When Talking about WASTEGATED turbo housings there is much less difference in EGT's at max boost settings even when talking about a 16cm to 12cm change when compared to nonwastegated housings. As long as your waste gate can handle the extra HP.



5. Especially at low, cruise and med power settings you should see lower egts and less smoke (with the 12cm) Due to the increased charge air levels available. Most of the driving we do is at low to "Moderate" power levels. This is where the stock 16cm Hx40 . . "S. . ks" . . especially on a Automatic equipped with a awsome Diesel Tech (Bill Kondaly) or other tight torque convertor and big injectors. The low end smoke and lag is too much.



There are other TDR members R&Ding the Kwikspool Hx40. As soon as they have the data it will get posted. So far it looks like only an a small increase in EGT's from the 16cm to the 14cm. I am sending out a 12cm today for them to further test.



From my own testing on my 6speed the Kwikspool Hx40 12cm Egt's are much lower then Hx35 12cm and they (egts) climb much slower. The cummins is much happier. It is definately breathing easier. I put my hx35 back on and it feels like my truck has asthma. When towing my 2 trailers (28,220lbs GVW) I can use higher power settings when climbing and can stay in the POWER longer when passing. BUT YES you still must keep an eye on the EGT gauge!!



On DevilDogs truck I decided to start himoff with the 12cm because he Tows very little, Has a Bombed Auto, Big injectors and his bigger issues are Lowend Smoke and TurboLag.



This post is getting way long and I have some more Housings to Grind on so I can mail them out. Feel free to Email me with any questions. -- email address removed --

 

[BigCarl64]

What about us that already have an HX40 with the 16cm housing? All I need is one of the machined housings. I have the DTT VB/TC with larger injectors and I know all about the lag and smoke. This sounds like a great way to use the HX40 and reduce the lag.

 

[HEMI®Dart]

One of the main reasons for getting an HX-40 16cm2 was the low exhaust restriction on the turbine side. Also the drive pressure was close to boost pressure, whereas the HX-35 12cm2, the drive pressure is about twice the boost pressure.



How much of the low restriction exhaust is lost when going to a smaller turbine housing and going back to the OEM 3" exhaust outlet?



I agree with you too Kurt. The HX-35 compared to the 40 chokes the life out of the engine.

 

[HoleshotHolset]

The last "40" I bought cost $2. 50! Okay, so that was beer... but I digress.....

The amount of R&D that went into this must be incredible.

Lots of folks are hogging out turbine housings all the time with minimal gains, but it seems like you have found the holy grail!

I didn't realize that the HX-40 used a different turbine section... . I thought it only got different once you went with the 4" outlet versions... . interesting. With that in mind... If I went with a BIG HX-40 with like an 18cm housing I'd have to have a custom DP made... seeing as most of the 4" DP's have the 3" v-band clamp flange connector on 'em... . right? I'm not against anything custom... it's another excuse to have a nice big exhaust!

This is looking like a really good combo for those of us waiting for the twin-turbo setups to get some miles on 'em... . not only that but this could be the 1st smaller turbo on the sequential setups!

Thank you very much for taking the time to give me the low-down on this nice setup you have!



Matt

(How many clams is it exactly?)

 

[Don M]

KwikKurt,



I am very confused now... is the HX-40 you are building up use the HX-35 turbine housing with the 3" exducer? Or do you have some 12 and 14CM 40 housings with a 4" exducer?



While on the subject... do you know how many CFM's your HX's are flowing on the compressor side, lets say at 30 PSI?



Trying to understand whats going on here.



Don~

 

[KWIKKURT]

KWIKSPOOL TURBOS

Originally posted by BigCarl64

What about us that already have an HX40 with the 16cm housing? All I need is one of the machined housings. I have the DTT VB/TC with larger injectors and I know all about the lag and smoke. This sounds like a great way to use the HX40 and reduce the lag.

BigCarl64,



Yes you can just install a "Bombed" 12cm2 or 14cm2 They are fairly easy to install. Or if you want to pay the freight to send your Hx40 to me I would change the housings for no charge. If you want to do it yourself I will also send some instructions with the KwikSpool housing.



HemiDart,



I am just a few days away from installing some pressure gauges in the exhaust manifold for testing. I am not sure of the pressure ratio there is with the bombed housings. If I had to guess I would say the KS 12cm2 is 20% to 40% less than the Hx35 12cm2. I will know more with the gauges as we will be testing some new modifications.



HoleshotHolset,



First of all Cool Username!



The Kwikspool Hx40 will bolt right up in place of the stock Hx35. Most people can install in about 1 to 1. 5 hrs. I have swaped it out a few times and can do it in about 30 minutes or less (Including a Pizza and $2. 50 beer! ) You can bolt up any of the standard DP's available for the Holeset: Exhaust brake or the aftermarket downpipes. As for the 3" outlet. Look at the turbo next time you have one off. The 3" area is about 1" deep then it opens up for the Wastegate. ALL Hx40's have the same size Exducer or Turbine wheel. So even if the housing is "4in" It will have the same restriction more or less because of the wheel and since that area is so short it has almost no effect on restriction. You just want to upsize the Exhaust as soon as practical after the housing or Brake. IMHO most of the 4" Housing or high flow exhaust brake is only marketing and ease of installation.

The Hx40 is designed for 8. 3 Cummins at 350 or more HP. That calls for a 4" exhaust so it makes sense to match up with the exhaust.



as for upsizing exhaust how about this

 

[DAWG-1]

Interesting...

HI KwikKurt,

I would be interested in this new bomb. I have a similar set-up. DDIIs are on the way. My fuel system is built and on its way. Clutch is on its way. Looks like fun . Where is Rob Hanson? Saam

 

[KWIKKURT]

Dawg, Email me for more info: -- email address removed --

Originally posted by HoleshotHolset

(How many clams is it exactly?)

Matt, I don't really like seafood! But I might consider Aluminum cans or Magic Beans ... ... ... ... . I don't think I am supposed to talk pricing - as I am now considered a business. Email for more info.



Thx Kurt

 

[Devildog]

IT's Here as promised But this week end calls for a lot of thunderstorms and I have to do the installation outside I guess i'll be looking for a large umbrella!

 

[HoleshotHolset]

As for my username... . I couldn't think of anything else... so I went with what came to mind. I wanted it to relate to my engine and not my lifestyle so usernames like: Partying_College_Guy, HaveBeer_WillDrink ... ... not so appropriate!



Interesting facts on the Holset turbos..... I'm definitely keeping this BOMB in mind while the twin-turbo setups get some miles on 'em.



I'll drop you an email... . I need more info!!

Thanks a million!

Matt

 

[KWIKKURT]

Originally posted by HoleshotHolset

As for my username... . I couldn't think of anything else... so I went with what came to mind. I wanted it to relate to my engine and not my lifestyle so usernames like: Partying_College_Guy, HaveBeer_WillDrink ... ... not so appropriate!



Matt

Matt, I am not sure why the wife started calling me "KWIK" But I do know it was the BEST 8 seconds she has ever had!! LOL





Well DevilDog???



Is it in?? You have kind of vanished this afternoon. Did you get rained out or Maybe it is finished and you are in Jail!!! LOL

 

[HoleshotHolset]

The only nicknames I have probably can't be repeated on this forum... .



BTW, I'm dying to hear how these turbos are working out... . they sound awesome so far!



Matt

 

[Devildog]

It's in... and it works great and managed to stay out of jail while testing. It spools quicker than my stock turbo, less smoke, around 150 deg EGT drop sound great too. Kwikkurt is a great guy to deal with, All around great experience.

 

[HoleshotHolset]

This turbo is going to be a really hot option for those of us with around 350 or so rwhp and would make a really good turbo for the meantime before I go twin-turbo... .



Matt - "DieselDrinker"