Mach 4's.
02-07-2006, 02:26 PM
#16
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Howdy, 1st. post but been reading and learning for over a year now.
You can see from my signature that I have Mach 4's, EZ and stock turbo. ETG's empty are not a problem (less than 1250F) until I am in 6th gear doing 95mph. I made the newbie mistake of putting in the RV275's first, then went straight to the Mach 4's. They seem to do the job
I did a Mustang dyno run (dyno set to 7500lb) and ran 353.5 HP and 825 TQ, both at 2250 RPM.
I have a question about your posted HP/TQ numbers. What dyno did you use for the testing? I here the Mustang dyno gives about 10% less, any opinions?
You can see from my signature that I have Mach 4's, EZ and stock turbo. ETG's empty are not a problem (less than 1250F) until I am in 6th gear doing 95mph. I made the newbie mistake of putting in the RV275's first, then went straight to the Mach 4's. They seem to do the job
I did a Mustang dyno run (dyno set to 7500lb) and ran 353.5 HP and 825 TQ, both at 2250 RPM.
I have a question about your posted HP/TQ numbers. What dyno did you use for the testing? I here the Mustang dyno gives about 10% less, any opinions?
02-07-2006, 04:20 PM
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Originally Posted by chriss
Howdy, 1st. post but been reading and learning for over a year now.
You can see from my signature that I have Mach 4's, EZ and stock turbo. ETG's empty are not a problem (less than 1250F) until I am in 6th gear doing 95mph. I made the newbie mistake of putting in the RV275's first, then went straight to the Mach 4's. They seem to do the job
I did a Mustang dyno run (dyno set to 7500lb) and ran 353.5 HP and 825 TQ, both at 2250 RPM.
I have a question about your posted HP/TQ numbers. What dyno did you use for the testing? I here the Mustang dyno gives about 10% less, any opinions?
You can see from my signature that I have Mach 4's, EZ and stock turbo. ETG's empty are not a problem (less than 1250F) until I am in 6th gear doing 95mph. I made the newbie mistake of putting in the RV275's first, then went straight to the Mach 4's. They seem to do the job
I did a Mustang dyno run (dyno set to 7500lb) and ran 353.5 HP and 825 TQ, both at 2250 RPM.
I have a question about your posted HP/TQ numbers. What dyno did you use for the testing? I here the Mustang dyno gives about 10% less, any opinions?
Chriss that sounds about right at that elevation with uncorrected #'s. Corrected you would be really close to 400.
02-08-2006, 12:18 PM
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Originally Posted by sleds
Chriss that sounds about right at that elevation with uncorrected #'s. Corrected you would be really close to 400.
02-08-2006, 04:10 PM
#22
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Originally Posted by chriss
I guess the next thing to do is shop for a hybrid turbo, but I still want to have fast spool up. Need to burn all the fuel those Mach 4's are put out
02-08-2006, 05:13 PM
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Originally Posted by Mike D
Why not a Phat Shaft 62 or HTB2?
Is there data to compare the differences between these various turbo options? Or do we have to rely on the experiences of others?
02-08-2006, 07:18 PM
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Originally Posted by chriss
Is there data to compare the differences between these various turbo options? Or do we have to rely on the experiences of others?
TURBO.........................60 MPH...................70 MPH..........................EGT's @ 30 PSI
HY-35.......................... 5 psi....................... 10 psi ........................ 1200*
HX-35.......................... 5 psi ....................... 9 psi ......................... 1200*
35/40 Hybrids ............... 4 psi ....................... 9 psi ......................... 1100*
HTT HTGB .................... 3 psi ....................... 7 psi ......................... 1100*
KSB1-2 ........................ 6 psi ....................... 8 psi ......................... 1075*
Piers HX-40 .................. 5 psi ....................... 7 psi ......................... 1050*
HTT HTB2, 12cm2...........4 psi ........................ 6 psi ......................... 1000*
KSB-1 ......................... 3 psi ........................ 6 psi ......................... 1000*
B1-2 ........................... 3 psi ........................ 5 psi ......................... 1000*
Holsett HX-40 ............... 0 psi ........................ 0 psi ......................... 1000*
HTT SP 66 .................... 0 psi ........................ 3 psi .......................... 950*
Full B-1 ........................ 0 psi ........................ 3 psi .......................... 900 *
02-08-2006, 08:21 PM
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If I remember right. This data is on different trucks running different setups. But, it still gives you a good idea since all tests were equal if you can factor out a bunch of other variables.
02-09-2006, 08:40 AM
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[QUOTE=Phatboy]Both. Call Doug @ http://www.performancedieselwarehouse.com/ and he'll steer you in the right direction. Here's some compartitive data compiled by Rjohnson on an older thread:
Thanks, do you like your Mach 4/Phat Shaft 64 combo?
Thanks, do you like your Mach 4/Phat Shaft 64 combo?
02-13-2006, 08:29 AM
#28
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Originally Posted by Mike D
Looks like me and Hohn are it.
I'll post my findings for those interested in getting some bigger sticks.
I have some 4.5 in the truck. At WOT I'm seeing about 38-39 lbs of boost (stock turbo HX35/12) and about 850-875 degrees post turbo temp, I'm going to move the pyro pre-turbo soon.
Cruising down the hwy. I'm at 550 deg. at 65 mph. From my understanding post turbo temps messure roughly 300 deg less than pre. with little boost, I personally think it's about the same just cruising down the highway maybe only 100 degrees different, but as the boost comes up the difference in temps grows.
From a stand still with zero boost matted, smoke is a problem...
After say 20 lbs of boost it pretty clear behind me.
I guess it will get interesting once I decide to add a fueling box.
I'll be keeping a close eye on the turbo threads.
I'll post my findings for those interested in getting some bigger sticks.
I have some 4.5 in the truck. At WOT I'm seeing about 38-39 lbs of boost (stock turbo HX35/12) and about 850-875 degrees post turbo temp, I'm going to move the pyro pre-turbo soon.
Cruising down the hwy. I'm at 550 deg. at 65 mph. From my understanding post turbo temps messure roughly 300 deg less than pre. with little boost, I personally think it's about the same just cruising down the highway maybe only 100 degrees different, but as the boost comes up the difference in temps grows.From a stand still with zero boost matted, smoke is a problem...
After say 20 lbs of boost it pretty clear behind me.I guess it will get interesting once I decide to add a fueling box.
I'll be keeping a close eye on the turbo threads.
I could hit 1450-1500 with these injectors. I'm glad I decided to move the pyro. This information will help speed up the turbo buying process. 
02-13-2006, 09:05 AM
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When I first put in the M4s and a test unit Catcher, I saw 1500 for the first time! This was at 38psi on the stock charger. I suspect that the toasty EGTs were due to tight turbine side choking.
Lately, I've noticed that my PEAK EGTs were lower than when I first tested the ecm/m4 combo.
I suspect the reason that the EGTs are lower now is due to a clutch that won't load the engine fully-- it slips instead
Lately, I've noticed that my PEAK EGTs were lower than when I first tested the ecm/m4 combo.
I suspect the reason that the EGTs are lower now is due to a clutch that won't load the engine fully-- it slips instead
02-13-2006, 09:23 AM
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Originally Posted by Eskimo
According to that, a piers HX-40 runs hotter than a stock HX-40.. 
weird... [shrug]
weird... [shrug]