Well, getting ready to finally get the kit and after doing some researching I have decided on the hpf 71 gts. It will be a few month before I can get the supporting mods, so my questions are can I run this turbo with stock fuel and stock ecu, if so how much boost can I run to be on the safe side? Also at what rpm range will this thing start to spool, and what kind of numbers will I see at the wheels? I have an auto with a stock stall right now, but I will swap to a six speed later. Thanks.

The kit will come set right at 17psi. Don't run any more than that and you'll be fine. I always recommend getting a wide-band just to be on the safe side. They are pretty cheap, and WAY cheaper than a new motor.

Spooling characteristics depend on which gear you're in. Expect to hit peak boost from roughly 4,200 to 5,000rpm depending on the gear. Power will be dictated by the stock fuel system. Don't attempt to make any more than 500rwhp on stock fuel unless you run a wide-band. I have tuned some cars to find where they start going lean, then I turn the boost down 2psi to be safe.

Take care,
Chris.

The kit will come set right at 17psi. Don't run any more than that and you'll be fine. I always recommend getting a wide-band just to be on the safe side. They are pretty cheap, and WAY cheaper than a new motor.

Spooling characteristics depend on which gear you're in. Expect to hit peak boost from roughly 4,200 to 5,000rpm depending on the gear. Power will be dictated by the stock fuel system. Don't attempt to make any more than 500rwhp on stock fuel unless you run a wide-band. I have tuned some cars to find where they start going lean, then I turn the boost down 2psi to be safe.

Take care,
Chris.

So basically without a bc the wg is set at 17 psi, and it will run fine on pump. Is there a way to change out the wg spring for something thats like in the 14 psi range or will I be able to lower boost with the bc. What is the eta of that turbo if I decided to get one.

So basically without a bc the wg is set at 17 psi, and it will run fine on pump. Is there a way to change out the wg spring for something thats like in the 14 psi range or will I be able to lower boost with the bc. What is the eta of that turbo if I decided to get one.

Yea, you can swap out the spring, but you won't want to. 17psi is fine for pump gas. There really is no point in running 15psi when you can run 17psi. I run 40psi on the stock engine. :)

Chris.

Yea, you can swap out the spring, but you won't want to. 17psi is fine for pump gas. There really is no point in running 15psi when you can run 17psi. I run 40psi on the stock engine. :)

Chris.


Cool, whats the avail on the turbo or is the kit in stock. Now I don't have any fuel management at all right now so is it best to run like a safc or can the factory ecu make adjusments? O yea one more thing which wheel is better the GTQ or the GTS and whats there differences?

Cool, whats the avail on the turbo or is the kit in stock. Now I don't have any fuel management at all right now so is it best to run like a safc or can the factory ecu make adjusments? O yea one more thing which wheel is better the GTQ or the GTS and whats there differences?

We have the turbo kits in stock for many of the turbos. I'm not sure about the 71GTS. So, you'll just need to call and ask. We pre assemble every turbo kit before it goes out, so if we don't have the turbo, it's a 2 week lead time.

The GTS will outflow and make more power than the GTQ but it will cost you 100-200 rpm more lag.

Take care,
Chris.

We have the turbo kits in stock for many of the turbos. I'm not sure about the 71GTS. So, you'll just need to call and ask. We pre assemble every turbo kit before it goes out, so if we don't have the turbo, it's a 2 week lead time.

The GTS will outflow and make more power than the GTQ but it will cost you 100-200 rpm more lag.

Take care,
Chris.

Hey, cool hopefully these questions don't seem newbish. Cause I like to know everything about what I'm about to get in to. I will give you guys a call here shortly in the next couple weeks. Thanks.

Sounds good. Information is key to making good decisions. Glad you're asking.

Chris.

Sounds good. Information is key to making good decisions. Glad you're asking.

Chris.

I have yet another question after reading about the new garrett turbos, mainly the gt42-71 (70.3 mm), will this turbo fit on the manifold on the 71gts? Based on looks, the garrett is physically way bigger then the regular 71gts, which one of these would spool faster or have more power, or basically which one is better than the other is it worth it to go with the gt42 rather than the 71gts?

So afew things I need to know

Spool and power?
will it fit on the 71gts kits manifold if so how much more for the gt42 rather than the 71gts?
But mainly is it worth it?

Thanks

I have yet another question after reading about the new garrett turbos, mainly the gt42-71 (70.3 mm), will this turbo fit on the manifold on the 71gts? Based on looks, the garrett is physically way bigger then the regular 71gts, which one of these would spool faster or have more power, or basically which one is better than the other is it worth it to go with the gt42 rather than the 71gts?

So afew things I need to know

Spool and power?
will it fit on the 71gts kits manifold if so how much more for the gt42 rather than the 71gts?
But mainly is it worth it?

Thanks

You probably shouldn't even consider the gt42-71 unless you're really planning on doing some work on your car. Bigger turbos are great for motors with cams, port work, intakes, multi pump fuel systems, etc. Most people get the GT42-80 or 88 which are monsters. I'm not sure how the 71 will do as I've never heard of anyone running it. If you're want the most power under the curve for approximately 800rwhp then you'll probably want the 71GTQ. It's a proven setup.

Chris.

You probably shouldn't even consider the gt42-71 unless you're really planning on doing some work on your car. Bigger turbos are great for motors with cams, port work, intakes, multi pump fuel systems, etc. Most people get the GT42-80 or 88 which are monsters. I'm not sure how the 71 will do as I've never heard of anyone running it. If you're want the most power under the curve for approximately 800rwhp then you'll probably want the 71GTQ. It's a proven setup.

Chris.


What is your take on all the 71Q trims blowing(esp. the Honda boys)?

What is your take on all the 71Q trims blowing(esp. the Honda boys)?

You weren't hoping for an answer were you? My first 71s came to me missing an oil seal , it smoked so bad it went from sunny to overcast in my town. Precision swore up and down nothing was wrong with it to save face.
I started my car twice without the turbo even on the car just to prove to myself it wasn't my engine.
To this day I wish I had taken some video.....

They aren't gonna explain anything to you. I will say after they fixed what wasn't wrong its been a great turbo for two years now.
dragracing at 30-40psi can be hell on any turbo......BTW.

We've never had that any issues with the 71GTQ.

We've never had that any issues with the 71GTQ.




http://www.fuzionauto.com/fuzion_break.wmv

http://www.fuzionauto.com/fuzion_break.wmv

Interesting... what did they determine to be the cause of that?

Chris.

Chris, just so you know...... all PTE turbos larger than a 67 will be GTS now. At least thats what they are telling me! All of the testing we have done has shown similar spool and more HP with the GTS anyway!


Larry

Hey, just a side-note, we will be selling our kits with a ball bearing option beginning in the new year. :)

Chris.

Interesting... what did they determine to be the cause of that?

Chris.

id be interested to know as well... as that turbo seems to have lasted longer than the turbo i JUST installed on my friends car. the car has less than 50 miles on it w/ a 71GTQ-HO (Antisurge) and its been slinging oil out the cold side since start-up. the turbo will be coming off around monday and being shipped back to you, Larry.

btw, are the 71GTS's antisurge as well, or is that something typically optioned out on the GTQ's?

Hey, just a side-note, we will be selling our kits with a ball bearing option beginning in the new year. :)

Chris.


Us too! ;) Wonder why?

Conicidence Maybe. :)