I have a stock block with the greddy twins at 6 psi.What i want to know is....i am putting on test pipes and having dave at functiontuned do the tuning.Do i have to have a boost controller to up the boost to 9 psi and will i need larger fuel injectors and a fuel return system for about 400rwhp or just a tad more.I also have a spare block which will be rebuilt over the winter for more boost and i know ill need bigger injectors and a return system for that.

Thanks,keith.

 

Hey Keith...

Boost controller - yes, unless you opt for wastegate springs for the TiALs. Injectors are big enough to handle 400whp and the return system is optional at this point IMO. But, all of this is really up to you and Dave. I'm sure he won't steer you wrong.

Good luck and keep us posted

 

Probably could save your self a wad of cash if you hold off and do it when the built motor goes in . But Im sure you know that .

Hurry up and get that motor built !

 

Thanks ryan and booger but it is time to have a little fun until i get serious.

 

you will need a boost controller to turn it up to 9psi. you can buy another set of springs, but the next ones up will put you around 11psi I believe.

I have a greddy profec II boost controller in excellent condition for sale. $200shipped.

 

Maybe I am an @sshole, but why post this? Why not just ask the person doing the tuning (Dave) and see what he has to say in terms of what you need and what he recommends? If you have a shop and tuner already chosen, your best bet is to trust their recommendations rather than Joe Shmo on the boards.

 

Well, obviously the boost controller wouldn't be a waste of money. But you then would have to have tune for those boost levels. That's were I would ask the question, is it worth it? The car can handle it. But I don't know past experience with the car and how hard it's been beat on. Nothing is guaranteed, but I think it would be worth it. If you get several more months out of it then I don't think it would be waste. Heck, you might get another year, you never know. But it sounds like your ready for anything.

 

It's a forum! Where you ask question and discuss issues that you would like to get a lot of people opinions on. Plus I've seen him a lot here on the forums and know he's been a stand up guy here. Very well respected. Contributes a lot to the forums. That would be like going to a meet and not ask question about your ride or not talk about suggestions from others about your car.

 

Thanks man and yea im just gonna buy gmans profec11 and turn up the boost a little.........................untill next year with the built motor.Zivman i kinda like to find out things by asking a question or too cause i really dont know a ton about turbo,s.When i had the stillen s/c i didnt need to ask questions cause ive had a little exp with roots blowers.Not to sound like a dik myself but your post was a slap in the face as i will allways answer anybody,s question,s if i can so just stay the *** outta my threads if you cant contribute anything positive.

 

To help you out, that profec EBC is a pile of ****. Get a decent EBC like an HKS EVC or Blitz SBC-id.

All I was referencing is the fact you have chosen a tuner, why not get his recommendations and go from there?

 

I'd have to say go with the HKS EVC also. Heard nothing but great things.

 

the profec isn't the HKS with all the bell and whistles, but it is more than adequate to accomplish the job supercharger is looking for....9psi. I've been running it for a couple of years at 16psi with no problem. It isn't the HKS EVC, but it won't cost him $500 either.

 

IMO on this...... yes get a boost controller..... as far as the FRS i think you would need one to get up to 400rwhp.... cuz when i had my Z tuned with just the 440cc injectors and the walbro 255 all i got was 396 rwhp and 386 torque..... so i guess you could say i had 400 rwhp..... but the again i know a guy that had an FRS, 760cc injectors and a walbro 255 and i think he got into the 400's but then again he had a better exhuast than i did.....

so Good Luck on the build and happy boosting.... i did a build so im past the 400 mark now.... lol

 

Gman just waiting on paypal to clear as i dont need all the bell,s and whistles.

 

speaking from personal use with it, it is a piece of ****. I wouldn't buy it for personal use, nor recommend it. If you have had luck with it, more power to you, but I will pay 500 bucks all day long for a decent EBC

 

ive never heard of any problems from the profec EBC.....and there are tons of sr/kat/rb ppl running it on their 240s.......

 

The Profec always worked fairly well at mild boost, but pretty jumpy once you hit double digit boost levels. We struggled with it for a year, until the Blitz SBC and then the HKS EVC6 came out.

If you a good deal on it, no harm it giving it a try, since you will be running lower boost.

 

Thanks sharif.I really dont need all the extras that the other one,s have so i think it will be ok for what i need.

 

I never had problems with it, but I am a bells and whistles type of guy so I upgraded to the HKS. Like Sharif said, it is kind of jumpy at double digit boost, but if you have open dumps, like I do, it is more stable.

 

just for the record are we talking about the Profec I EBC or Profec II EBC...