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Mods needed for 300 hp with a 14b

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gijoe985

15+ Year Contributor
562
20
Dec 13, 2007
Grandview, Washington
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?
 
2.5" turboback exhaust
Ported 2g mani
Port work on the turbine housing and O2 housing
550 injectors
190 FP rewired
AFPR
SAFC

Not sure about intercooling. Once those mods are in place, you can up the boost and see if you have heatsoak issues. Then you can go upgraded SMIC, or FMIC, or water/meth injection.

Unless you have the cash laying around, don't bother with anything other than the ported 2g mani; it's certainly adequate for way past 300hp.
 
I disagree on not getting the 3" exhaust... There is no such thing as to big for turbo exhaust.:thumb: I bought Megan 3" turbo back and could not be happier! buy it once, get 3" from the get go...!
 
skip the AFC, get the 'link. It will be your tuner and logger. You're going to want to be able to fine tune the spark curves to get the most out of the 14b. Either that, or learn how to do EPROMs.

An IC that's too big will only affect spool up, not flow or cooling. With all the mods you have planned (and assuming you're only going to be using it for racing) I don't think an IC that's too big will be a problem. You're going to be making a lot of heat making 300hp out of that turbo.
 
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.

Why are you looking for NT cams when you want to increase HP?Thanks
 
I disagree on not getting the 3" exhaust... There is no such thing as to big for turbo exhaust.:thumb: I bought Megan 3" turbo back and could not be happier! buy it once, get 3" from the get go...!

A 2.5" exhaust is good for 300hp. I have nothing against a 3" exhaust, but for his goals, that's all he needs.
 
hey man your definatly gonna need something besides an afc to control those injectors. your car is an auto, so it should have 390cc injectors in it so you 650's are almost twice as big as factory. I would recomend getting a chip burned for the 650's then use the afc to fine tune it. you should be able to get by with jsut the chip and it will be close enough to not even need the afc.
 
hey man your definatly gonna need something besides an afc to control those injectors. your car is an auto, so it should have 390cc injectors in it so you 650's are almost twice as big as factory. I would recomend getting a chip burned for the 650's then use the afc to fine tune it. you should be able to get by with jsut the chip and it will be close enough to not even need the afc.

Good call! I can be such a 1g bonehead sometimes.:coy:
 
This exact car is going to be my g/f dd. I'm looking for my own shell to build at teh moment. I guess I should have made that clear when I made the thread. As for the safc.. right now i can get a great deal on that and the 650's off a buddy who just went 2.3. I was just going to get the keydiver after all this. Oh and I should add....she's paying for it all. So I guess what I ahould have asked is what is a safe and reliable way to make 300 on the 14b.
 
hey man your definatly gonna need something besides an afc to control those injectors. your car is an auto, so it should have 390cc injectors in it so you 650's are almost twice as big as factory. I would recomend getting a chip burned for the 650's then use the afc to fine tune it. you should be able to get by with jsut the chip and it will be close enough to not even need the afc.


I'm using a 5spd ecu because of the timing cut in auto ecu's when its shifted. I got the car as a shell. It now has 450's and a 5spd ecu.
 
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

I am liking the meth injection option. I never thought I'd want it, until i did some research. Thanks. I've read a few good DIY meth injection articles. I think that's what I'd do. Not bcause it's cheaper, but I LOVE DIY projects. I made a projector for my house, I get a 10ft screen at high def. After breaking two lcd panels in the building process, over a few years, it would have been cheaper to buy one, but not near as fun. So again, I think the DIY articles are pretty cool.

Also, I've read most the articles on vfaq and on here. Great stuff. I just keep asking questions as they come up. I always search first. Sometimes I still ask even if I found another thread. Usually because I find a specific part of the question I need clarification on.

Thanks to the guys who gave me setups. They looked good, and more than anything, helped verify what I was thinking. Someone critique this plan (long term)-

6 bolt engine
1g intake, TB, Head
2g exhaust
Either 2g pistons, or a ceramic coated replacement I found
ARP head, rod, and main bearing studs
Head gasket?

Whatever turbo I got 14b or 16g, until I really get ambitious
A turbo timer- whatever gets the job done for cheap- I haven't read much about these since it seemed pretty simple. I'll read more when the time comes.

All exhaust components

255 Walbro
AFPR
Wiring kit for the pump
big injectors (800-1000ish) There is a kit that has all of these components
DSMlink

widebad O2

Meth/water injection

Some sort of air intake with a K&N

FMIC with hard piping



I guess that's a lot of it. I know I'm forgetting things. This is also just engine stuff, in no particular order, and it does not include any other upgrades around the car that will happen before and during the engine upgrades.

One of my big goals is to follow in my mentor's footsteps. "Whoa before Go!" When I got my 67 mustang fastback, he convinced me to replace all the brakes before I tried to get the engine started. That way I didn't drive off, in excitement, and have no brakes. So, for the Talon project, I plan to work on reliability/performance factors. Engine/tranny internals come first, things like a fuel pump, FMIC, turbo timer, and meth/h20 injection come soon since they will help the longevity of the car and prevent knock.

Critiquing is welcome.
 
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