Steps to get 300WHP

brennan said:
MPI or Haltech??
The MPI seems to have decent capability, but by the time you had the extra injectors it costs almost as much as the Haltech. The Haltech can also be used as a full stand alone while the MPI is a piggyback.

If it were my money, I would buy the Haltech because of its capability over the MPI and its tuning flexability. It probably comes down to personal preference and there are plenty of MPI info threads around here that you can read.
 
Mallard said:
The MPI seems to have decent capability, but by the time you had the extra injectors it costs almost as much as the Haltech. The Haltech can also be used as a full stand alone while the MPI is a piggyback.

If it were my money, I would buy the Haltech because of its capability over the MPI and its tuning flexability. It probably comes down to personal preference and there are plenty of MPI info threads around here that you can read.
Not sure what math you are using. With the MPI Tuner system and stock injectors you can run up to 12psi. After that you would need the extra injectors.


The cost would be $795.00 for up to 12 psi. This is for both fuel and timing control. With the extra injector set up the cost is $395.00 more. We are seeing over 328whp with the set up and only 15psi. We will be back at the dyno real soon at 21psi. We should see around 350whp I am guessing.

What does it cost for the Haltech or any other system to get you to 12psi? What does it cost to get you to 350whp? What is the cost of a bigger set of injectors? Does the Haltech do timing control? Lets compare the total cost and see what it gets you.
 
MPNick said:
Not sure what math you are using. With the MPI Tuner system and stock injectors you can run up to 12psi. After that you would need the extra injectors.


The cost would be $795.00 for up to 12 psi. This is for both fuel and timing control. With the extra injector set up the cost is $395.00 more. We are seeing over 328whp with the set up and only 15psi. We will be back at the dyno real soon at 21psi. We should see around 350whp I am guessing.

What does it cost for the Haltech or any other system to get you to 12psi? What does it cost to get you to 350whp? What is the cost of a bigger set of injectors? Does the Haltech do timing control? Lets compare the total cost and see what it gets you.
Well I admit that I don't know the full capability of both of the systems, although I have read many threads on both. I beleive the Haltech is around $1200-1400. To me the cost over the MPI Turner is worth the ability to use it as a full stand alone, plus the ability to use larger injectors instead of putting extra ones in front of the throttle body. I feel that method is a band-aid that cannot ensure each cylinder is getting the same a/f mixture. Don't get me wrong, you guys have made nice numbers with your set-up, but this would be my preference, and is my opinion.
 
Mallard said:
Well I admit that I don't know the full capability of both of the systems, although I have read many threads on both. I beleive the Haltech is around $1200-1400. To me the cost over the MPI Turner is worth the ability to use it as a full stand alone, plus the ability to use larger injectors instead of putting extra ones in front of the throttle body. I feel that method is a band-aid that cannot ensure each cylinder is getting the same a/f mixture. Don't get me wrong, you guys have made nice numbers with your set-up, but this would be my preference, and is my opinion.
The AFR from cylinder to cylinder is a very old debate. Not any testing has ever shown that you do not have good cylinder balance.

Has for power made, I have never seen any Protege dyno sheet posted on this forum that has more power then Deans MSP.

What is the cost for a Haltech and bigger injectors. As far as a standalone with bigger injector being better is still a very big debate. Yes it comes down to what people want. It is not always what is better.

328whp is still the top of the hill as far as what I have seen on this forum. That is with the MPI Tuner system.
 
ok, so I'm not that good with engine managment, so if I were to get some type of managment what would be the easiest to use or do they both need to be used by a professional.??
 
brennan said:
ok, so I'm not that good with engine managment, so if I were to get some type of managment what would be the easiest to use or do they both need to be used by a professional.??
Because we are working off of the stock maps and only making changes for boost the MPI would be the easiest to tune by the end user. If you run bigger injectors you will need to tune the whole map from idle to redline. Even then I have not seen cars run great at idle or light throttle with bigger injectors.
 
Well I will most likely be getting bigger injectors. Which injectors are good for the msp, i've heard of the WRX 440cc and the Bosch 440cc
 
brennan said:
Well I will most likely be getting bigger injectors. Which injectors are good for the msp, i've heard of the WRX 440cc and the Bosch 440cc
The WRX is a better injector for our car then the old style 440 Bosch.
 
MPNick said:
We made 328whp with a T-25 that we reworked along with ported and polished the manifold and turbo exhaust housing.

That was at 15psi. We will dyno it again later this month. It now runs 21psi.
I did say it was possible, just, I think that you are pushing the upper limits of the T-25 design. It is a small turbo for those types of numbers, just saying it might be better to upgrade to a slightly larger turbo to get some higher effeciency in the charge delivery.
(dunno)​
 
cosmo420 said:
i would want a beefed up auto tranny with a custom converter so it isnt as hard on the axels.
Interesting, I never thought someone would want to do all that to an A/T.
 
Ok, I will be buying a FMIC Kit soon, My choices are ION and HIboost now which one would be better for my goal??

I've read alot about both. Both have good and bad,
With ION you can put a aftermarket Rad in but it doesn't come with a BOV, other good things is that it is SS piping. Don't know if the core supports 300Whp or more

With Hiboost, good company good quality, Downside is that you can't put a aftermarket rad in, it comes with mild pipes(not that big of a deal) it comes with a BOV and the core does support 350whp+

Can you guys help me decide since I don't know exactly what I need in a FMIC for 300 +Whp

Thank you
 
Brian MP5T said:
Interesting, I never thought someone would want to do all that to an A/T.

A guy on a local forum ran a best of 13.4 1/4 in a camaro. He installed a 3500 rpm torque converter/stall and now runs 12.7s. Meanwhile the same car in a 6 speed would run around 13.2ish with his hp and mods.
Point being: if you have enough hp an A/T can be much more beneficial.
 
well i am running 675cc bosche injectors through a custom fuel rail, and they should be good for the 30-32psi we're planning on running. we have custom CV's on the way, still deciding on a decent LSD. We run haltech's over here as the build quality is excellent, the resolution on tuning is excellent and they are made here so we can call the tech's direct if something goes wrong. As far as tranny goes we all reckon about 350hp is where the thing will start to lunch on itself, so we're looking into some major gear box work as band aid jobs won't work as itll be at the strip once a week.
as far as power figures go we are looking around 300kw at the wheels, which as well as being fun also looks like it might be the record on here so far but we'll have to wait and see, as things always work out different on paper from reality.
project completion: around 4 months away, car is running at 8psi after monster rebuild (everything that could be done) and only has around 700km on the new engine... so hang in there and ill keep with the updates...
 

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