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Discussion Starter #1
I have been throwing around the idea for a good while now. I am one way then the other. I have a v2 s trim on my 94 cobra that is fully built with a boss block. My cars weakest point is the clutch and everything can easily hold 700rwhp 700 rwtq.
my s trim is only putting down horsepower in the 500s and that's after I fix the valve float at 5000. For this car not to be making 625 is a waste. Which that is my goal is 625 rwhp. This car will be drive 8-10k miles a year. So I am here for u guys to debate this with facts. Keep my v2, change out my cobra intake, get a little more aggressive tuning, throw everything but the sink at it to maybe make 600.
Sell my s trim, buy a on3 kit up grade to a 84mm turbo and make the power I need to easy.... I love the way my car sounds now. I am concerned the turbo will change the sound at idle. I will enjoy the way the turbo sounds spooling.... Is the turbo kit hard to install?
 

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I have been throwing around the idea for a good while now. I am one way then the other. I have a v2 s trim on my 94 cobra that is fully built with a boss block. My cars weakest point is the clutch and everything can easily hold 700rwhp 700 rwtq.
my s trim is only putting down horsepower in the 500s and that's after I fix the valve float at 5000. For this car not to be making 625 is a waste. Which that is my goal is 625 rwhp. This car will be drive 8-10k miles a year. So I am here for u guys to debate this with facts. Keep my v2, change out my cobra intake, get a little more aggressive tuning, throw everything but the sink at it to maybe make 600.
Sell my s trim, buy a on3 kit up grade to a 84mm turbo and make the power I need to easy.... I love the way my car sounds now. I am concerned the turbo will change the sound at idle. I will enjoy the way the turbo sounds spooling.... Is the turbo kit hard to install?
They are 2 totally different animals and it really depends what your goals/budget are. I ran multiple Vortech blowers from an S trim, Si trim, and a V7 JT that was pretty heavily modified on my 2v with meth, blower cams, built motor, built auto, etc. The car was fun on the street, but I starved the motor for oil and wiped out a few pistons and damaged a few walls. I decided to sell all my blower stuff and go turbo so I'm doing exactly what you are considering. I have a build thread up, but let me tell you man it's a lot of stuff to change and a lot of work, along with a lot of money. I just got tired of belt slip, the nightmare of changing the belt, always having tensioners/idlers squealing, etc. I don't have it up and running yet so I can't provide real world numbers or experience, but for an idea I was making 600rwhp out of my 2v with a V7 JT trim and meth on 93 octane at 20psi. On my new setup I did up the compression to 10:1 (old setup was 9.5:1), I upgraded to TF 38cc heads from ported PI heads, I changed cams from real mild blower cams to MHS stage 3 turbo grinds, and I will be running E85 on new build. I'm shooting for 750-800rwhp at probably around 20psi with a PTE 7675. Let me know if you have any questions or if I can give you any honest feedback with whats involved with this type of change I would be glad to give you any info. Good luck with whatever you decide.
 

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Discussion Starter #3
I will not change cam. Anderson b31hr is said to be "okay" my fuel system is an A1000 complete system and ID1000 injectors. I am
Shooting for 15 psi. So what am I going to be looking to change if I am not changing cam? No fuel upgrades. I will actually just keep my precision turbo intercooler and sell my blower with the on3 turbo intercooler.
So basically I will remove blower install turbo that's it. My pan is already tapped for oil lines.
Will my car sound okay with the turbo??
 

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I will not change cam. Anderson b31hr is said to be "okay" my fuel system is an A1000 complete system and ID1000 injectors. I am
Shooting for 15 psi. So what am I going to be looking to change if I am not changing cam? No fuel upgrades. I will actually just keep my precision turbo intercooler and sell my blower with the on3 turbo intercooler.
So basically I will remove blower install turbo that's it. My pan is already tapped for oil lines.
Will my car sound okay with the turbo??
Well I decided to go a little more custom on the turbo build. I went with a CG Fab hot side and am having cold side fabricated. I run the same injectors as well. What are the specs to those cams? Cams with a turbo will really effect spool time. Right off the bat if you don't have tubular front suspension you'll need to make that conversion to make clearance for the hotside piping. How are you planning on controlling boost? EBC or manual? Whats your current MAF setup?
 

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Discussion Starter #5
AFM B-31 218/228 .544/.544 w/1.6 rocker 270/280 112 108

A blow through ba5000 I believe.

On3 doesn't say that u have to have a tubular K. For the 2v I know u have to.

On a down side I'll have to return and my tuner is 5hrs away
 

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Between an S trim and on3, I'd stick with Vortech. If you would go custom or upgrades on the turbo setup than I'd go turbo. Just my personal opinion
 

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Discussion Starter #7
I've just seen stock block stock head guys make great power on these kits I figured my intercooler and use there ceramic ball bearing turbo I might get some real good gains
 

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I've just seen stock block stock head guys make great power on these kits I figured my intercooler and use there ceramic ball bearing turbo I might get some real good gains
I would just make sure you do your homework with on3...
 
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The on3 kit was a very easy install on my 89. Most of the kit seems to be good quality. My turbo junked out in less than 20 miles, so I would just get the standard 70mm turbo, use it as a doorstop, and put something good on. If I had to do it over, I would just built my own kit.
 

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So if you're going to usethe on 3 turbo as a door stop why not spend the money and get a a better kit B.G they have a knock off on 3 for 1850. And one with a better turbo and stuff for 2800.why mess with the on3 ?
 

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Discussion Starter #11
The on3 kit was a very easy install on my 89. Most of the kit seems to be good quality. My turbo junked out in less than 20 miles, so I would just get the standard 70mm turbo, use it as a doorstop, and put something good on. If I had to do it over, I would just built my own kit.
How was customer service did they take care of the new turbo or did u have to buy a new one out of pocket. I wanted to upgrade to a 76 journal bearing turbo.
 

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Discussion Starter #12
Just put a set of Hoosier drag radials on er. No spin. Takes the scare factor right out of my car.
Me and my tuner spoke and we discussed replacing my valve springs THEN if I am not happy switching to a turbo. As of right now I have had no issue with my v2.
 

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Customer service was pretty good, I told them what I wanted in my kit, placed my order on Monday, it showed up FedEx on Wednesday! The turbo was not taken care of by on3. There is a 30 or 90 day warranty on them, (from purchase date) I had mine on the shelf for almost a year before the kit was installed. The 76mm journal bearing with a .94 turbine housing wouldn't spool up on my 306 till around 4k rpm, and was not a good choice with a stick car. Put a 72mm Turbonetics ball bearing unit with a .81 turbine housing........boost at 2k rpm!
 

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Discussion Starter #14
Idk why I want to switch to turbo when my power goals are obtainable with my s trim.

How would the original 70mm turbo do? Trying to make 600 rwhp
 

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Im interested as well , 363 dart with a Novi 2000 nothing in the car yet all waiting to go in, but have the dilemma of selling the Novi and going turbo
 

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Discussion Starter #16
Basically what I am looking for is what advantages is a turbo going to be over the s trim I currently have.

Is my car still going to sound good??
 

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Is my car still going to sound good??[/QUOTE]
Yea I get sick of the sound of"spooling up" and the BOV.........said no one ever lol. As far as the 70mm on3 unit, I would ditch it for a nicer unit.
 

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A turbo is slower making boost than a blower and it really could use a different cam. A small turbo like PT7675CEA with the right cam and heads on a 330 or larger will spool fast and make a ton of power. I got up around 1000 with one and it spooled in about 1 second off a fast idle.

If you only want 700 RWHP you should be able to get that with an si trim and decent cam and heads. My 363 with 205CNC TFS made that.

One caution, the turbo is a whole lot more heat under the hood. If you mostly street drive you will have to be careful about under hood heat with a turbo.
 

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Discussion Starter #19
A turbo is slower making boost than a blower and it really could use a different cam. A small turbo like PT7675CEA with the right cam and heads on a 330 or larger will spool fast and make a ton of power. I got up around 1000 with one and it spooled in about 1 second off a fast idle.

If you only want 700 RWHP you should be able to get that with an si trim and decent cam and heads. My 363 with 205CNC TFS made that.

One caution, the turbo is a whole lot more heat under the hood. If you mostly street drive you will have to be careful about under hood heat with a turbo.
I want to make 625 rwhp 3100 ibs good suspension. That's my goal.
Is a turbo "faster" than a centri?

What's the real advantage if I did switch.
Anderson motor sports said this cam would be great for a 67mm-76mm turbo
 

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You mentioned On3.
You mentioned 600whp.
You mentioned going to an 84mm.

With a SBF at your goals I would keep the base 70mm.
I can't see any reason for a needed change.
At least I liked the base On3 70mm more than I liked my PTE 7675 CEA.

I also switched from a blower to a turbo. I'll never go back to a blower.
 
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