New Turbo??

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Dec 20, 2007 | 09:03 PM

#16

1BAD4X4

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From: Sioux Falls, SD

What about 500rwhp with a 24v that doesn't tow? A little bit of lag isn't that big of a deal. I just want to hit 500rwhp with ease... anything else is just icing on the cake.

Dec 21, 2007 | 08:54 PM

#17

Mike Holmen

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From: Airdrie Canada

If your gonna tow a heavy load and be in the 500rwhp, twins is the way to go. Yes, the laggy single isn't a big deal most of the time, just when you need to accellerate quickly.

Dec 21, 2007 | 11:12 PM

#18

Tate

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From: Airdrie, Alberta

Quote:

Originally Posted by 1BAD4X4

What about 500rwhp with a 24v that doesn't tow? A little bit of lag isn't that big of a deal. I just want to hit 500rwhp with ease... anything else is just icing on the cake.

62mm will do it for you. Something in the 71mm or 74mm turbine variety.

Dec 22, 2007 | 08:24 AM

#19

schoust

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From: Ct.

I like my 62ss but if I had a choice I would definetly go with the twins! The turbo is a tad slow to spool but once there it's a outstanding! I also think with more timing and more fuel I would like it more....

Dec 22, 2007 | 06:41 PM

#20

Hayseed

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From: WV

schoust, did you finally get that turbo straightened out? Mine is good but I let the wife and son talk me out of the truck!! I'm running a STOCK 6.7 for now!!!!!

Dec 23, 2007 | 09:59 AM

#21

OWEN B

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From: British Columbia

Does anyone make a turbo that would work well with my trucks set up and still be able to use my exhaust brake

Dec 23, 2007 | 01:44 PM

#22

schoust

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From: Ct.

Ya Hay it's all good I had to simply learn how to drive it! I mean you just can't mash it from a dead stop and expect the tires to spin! That 71 wheel is a whole differant animal than the stocker. I like it a lot now I just wish I had some bigger injectors to try! I'm on the hunt for a set of good used 435's keep your eyes open for somthing in this area of flow. Ralph

Dec 23, 2007 | 02:33 PM

#23

bridleman

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From: Montana

Quote:

Originally Posted by aksparkey01

west coast, i did quite a bit of research on this also before choosing my turbo. i went with the new htt 62/13/71 because the 13 sounded like a good compromise between the 12 and the 14. its only come in the stainless though. from what i saw before my head gasket went i really liked it. it was a little slow off the go if you just slam the go petal but with the 5 spd you can run right in the sweet spot with it. also you have the 4k gsk advance that timing some more and i think you will find a better top end power with a slower spooling turbo. but when the 62/13/71 lights off it goes fast and hard. "they said it is set at the factory at 42# first time i mashed the petal mine hit 60#." I have also heard really good things about the silver bullet, that was my second choise. garret was the best price on the htts that i found. hope that helps your decision

I know that you are speaking of a 12v but my 24v has never seen over 44psi with this turbo (62/71/13ss) I have done everything to get more boost even plugging the w/g with no change, the only thing I can think of is it's not enough fuel but it seems that everyone who has this turbo has no prob hitting 50+psi I guess we will see if it's a fueling issue when I get the Mach 4.5

Dec 23, 2007 | 03:25 PM

#24

Ph4tty

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From: fredericksburg, virginia

Quote:

Originally Posted by OWEN B

Does anyone make a turbo that would work well with my trucks set up and still be able to use my exhaust brake

Using a Dodgezilla or getting your upgraded to a 35/40 are the only options I'm aware of unless you want to build a custom downpipe like Jlent.

Dec 24, 2007 | 10:38 AM

#25

Mike Holmen

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From: Airdrie Canada

Why can't you spin the tires off intial spool-up.

Has anybody seen the compressor map for the s300 62? What kinda off speed is compressor spinning at when your in the mid 40's for boost. I bet that your almost at the top of the map. You really need a steep compressor map with more pressure ratio to break thru into the 50psi area for a single turbocharger. Of course twins would still be pulling hard until the 80psi area with a S400 on the bottom, tons of cool air for pulling. I would also reconfigure the S300 for twins application so your spool-up would remain the same but you would still have good cool air until 70-80psi range.

Dec 24, 2007 | 11:29 AM

#26

Ph4tty

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From: fredericksburg, virginia

Quote:

Originally Posted by Mike Holmen

Has anybody seen the compressor map for the s300 62? What kinda off speed is compressor spinning at when your in the mid 40's for boost. I bet that your almost at the top of the map.

I think you're right Mike, even if we have to guestimate due to a lack of published maps. The only problem with a 62/13 spinning 44 psi is that its not using that expensive wastegate thats on there.

Dec 24, 2007 | 03:29 PM

#27

aksparkey01

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From: ak

after i put my 62/13/71 and hit 60# with it right away i emailed htt to ask them where they recomend running that charger. they told me that it is most efficent between 40-45 # but can go up to 60#. so after i get my new head on right i will turn it back down to probally 48 or 50. i havent tried the methanol with that charger but with my stock charger it brought my overall max boost up 7-10 #