Mods needed for 300 hp with a 14b

[gijoe985]

Howdy all. I have been reading a lot of posts where people are shooting for 300+, 400, 450hp. While that is a great sounding goal, I am curious if anyone could lay out what they would consider the best way to get a solid and dependable 275hp at the wheels. I've read all the stage one upgrades that we have here on the forum, but I was just curious if anyone had a recipe for around 275 that they could personally verify.

So far I know I'd like to upgrade the fuel system asap, just so I know that I won't be running lean due to lack of fuel. And even though it is expensive, I'd really like to get DSMlink early on, just so I can optimize on my setup. And I think the logging would be useful as well.

Either way, 275, what's your recipe?

 

[booostedGSX]

What model and year is the car, and what current mods do you have?

 

[erald01]

exhaust, downpipe, intake, boost controller.

 

[DKneble]

Been a couple years since I was at that point but if my memory serves me correctly this was my recipe that yielded 283 at the wheels on pump gas for a 2.0L 7 bolt:

Airflow-
Dejon Intake and KN filter
Big 16g
O2 housing
Downpipe (with cat delete)
Catback

Fuel-
550s
Walbro 255
FPR (not necessary but def the safe way)

Management-
DSMLink and wideband

This should give you the number you are looking for even with a SMIC although I would personally recommend a front mount (even if its just a small one). At the time I also had an aftermarket bov and some intercooler piping but I wouldn't consider them needed for your goal. Just grab a 1g bov and you should be fine.

There are obviously many ways to get to that performance level though...are you considering reaching much higher numbers at a later date? or just trying to keep it reliable?

Dave

 

[GTO_Joe]

buy a Stealth TT

 

[kenamond]

Do you want to do it all at once or in steps?

I agree for the most part with DKneble, but you don't need a 255. If you get a 190 you *should* get an AFPR. If you get a 255, you *need* to get an AFPR.

And if you stick with the SMIC, you'd be better off getting an aftermarket UICP.

You could also go with a 14b or perhaps even a larger turbo if you want "room to grow".

And if you decide against DSMlink, you could easily go SAFC on the 550 injectors.

But then again, you asked for input from those who had actually done it. So nevermind.

 

[1993gsxtalon]

Im in the same boat here looking for 275awhp.
What year and model do you have?

 

[DKneble]

Also, if you are thinking about maybe going to a much larger turbo "down-the-line" and don't want to waste the money on a 16g if your eventually going to get rid of it then I would recommend keeping the 14b and running a meth injection kit. It will definitely get you to the point that you want and on pump gas. Plus, when you do go bigger you can keep the benfits of the meth and won't have to scrap a 16g.

Just my .02

Dave

 

[gijoe985]

I just changed my signature. Hopefully that answers people's questions.

NO, I don't own a DSM yet. I am trying to learn as much as I can before I get one. I used to think I'd only be able to afford a 1g, but now I am keeping my eyes open for 2gs with bad motors to do a 6 bolt swap on. I am also trying to learn more about the different mods, their values (hp and $) so that if I see cars being sold with mods I can judge what they are worth.

275hp is a goal of mine that I'd like to see sooner than later. I probably would love to go higher later, but not for a while. I do like to plan ahead and avoid buying things twice, so off the bat, if I am buying fuel system parts, I am going to get things that can support higher hp, so that I will never need to replace them again. I.e. 255lph pump, DSMlink, and big injectors from the start.

Even though it isn't the quickest way to my goal, I figured I'd save up and upgrade the whole fuel system at one time. Prepared for more hp than my goals. I'd also like to get a FMIC. I figure both of these things will help reliability as well as power. Exhaust will come soon there after to help get me toward my goals. Of course, all of this is going to happen after a good rebuild is done on the engine and tranny with a better clutch installed. I am trying to build a solid base before I go bolt on crazy.

These are my thoughts right now. But again, I am in a researching stage, so I could change my ideas at any time.

 

[bane3d]

Before you ask any more questions, go here:

Visual Frequently Answered Questions - Home Page
1000 Already Answered Questions - Index page

become familiar with the engine:
Virtual Tour of the DSM Engine Bay - Top index

When I bought my car, I first read the 1000Q from top to bottom and reviewed everything in the engineprimer. I found that I got a very quick and concise education about some of the finer points of our cars along with a lot of good dos and don'ts. Most of the stuff you get on here is very good information, but it helps to learn the basics first (I wasn't familiar with any of the acronyms) and then work your way up.

d

 

[GVR4592]

Nitrous would be the quickest, easiest way to do it.

 

[marsh63]

Nitrous would be the quickest, easiest way to do it.

yes it would but how many people actually know how to use it so their cars will last more then a few runs.

all i can say is read everything. go to other peoples profiles that have the hp you want and see what mods they have. the more you educate yourself the easier and better it will be.

 

[DKneble]

the more you educate yourself the easier and better it will be.

AMEN

 

[DSM_PWR]

can you reach 275whp ona t-25? runnin no more that 16psi? or is it just a waste...

 

[DKneble]

t-25 + nitrous, yes but going to need decent supporting mods and understanding of using nitrous properly.

 

[dsmconvict]

Going to try and make around 300hp on my auto with a 14b. I know fuel and a good tune are a must but what other supporting mods would push me closer to my goals?

Thanks,
Chris

 

[93clips]

You are going to need a FMIC and get piping that hooks up to a MAFT. Then you get an LS1 mass air meter and then you can have a more freed up intake track and you won't have a restricting air mass in the way.Also once you get your fuel mods, get a logger to help you with tuning. Do you have a 1st gen or 2nd gen? Filling out your info is crucial when you want people to help you out.Of course there are a plethora of supporting mods to help you reach 300 but i think the MAFT is a big help seeing as dsm's have our old school giant mass air meters.

 

[dsmconvict]

Its a 1g auto awd. I was planning on running the 2g mas that i have. I already have the intake pipe and other things. Future fuel mods include 650's, 190lph pump, S-AFC, and a logger.

 

[turboking15]

a maft and gm maf is not necessary, the 2g maf has gone to 400 horse no problem. i would suggest that you take the money for the maft setup and put it towards a meth/water injection kit.

also a free flowing exhaust. if you plan on going for more after your 300hp 14b then i would just go with a 3" and be done.

a good set of cams wouldnt hurt your causes either.

 

[dsmconvict]

I was never gonna go MAF-T. Ive heard too much to steer me clear of it. The cars gonna be set up with 650's,190, safc, 2g maf and a logger. I'm trying to find a set of N/T cams for the time being. Also would a smim help any? I've got a friend who works at JMF and if it would help I'd pick one up.

 

[h8r]

I would get a ported 2G exhaust manifold port that , along with the turbo.

 

[dsmconvict]

What do you think about the GT manifold? I dont need to port the turbo...well atleast not the hotside because I have the 7cm housing on it already. Keep the input coming guys

 

[h8r]

The GT mani. would work.... Hey, Check out FP they have the cast race manifold on sale... GB Pricing FTW!

 

[talon187]

hey im running a maft and gm mass i love it ive noticed a differnce with spool up and what not but its up to you. i would also say do the exhaust if you going to run with an internal gate make sure you port the wastegate falpper or you going to creep like a bi***. might want to do a bigger 02 hosuing as well you might have a hard time runinning 650s with the safc the maftt you could dial the 650s in and fine tune with the safc2 but its up to you might want to upgrade your bov as well when you do an intercooler

 

[dwdsm]

Yeah...My 2G MAS is fine at 45lbs per min. and 400AWHP. so?? Any chance of going E85? That's how Curt Brown went 10's on a 16G powered car. Otherwise efficiency is your best bet. Get parts that match up well, for example don't get a giant frontmount with giant piping or a 3" exhaust. I would get a supra side mount with some smooth 2" inch piping with a 2.5" exhaust. Otherwise you sound to be on the right track. Although I would consider dsmlink for a more efficent tune...