420A more power out my 420a turbo

[Morales92]

alright i want more. But need some advice. I want sqeeuze some more hp out of my car. so far i have stage 2 hahn kit at 7psi with a cartech and 4inch apexi exhaust tip or 3inch i think.

 

[glowryder]

Didn't we tell you you would want more? And Im pretty sure it was you whom said, no, i just want 7 psi.. Weird..

And I'm pretty sure we gave you plenty of info on what you NEED to go more. You need a built Engine. The parts you used were slightly better then stock , if that. With that, running any more then 7 psi will be risking your motor.

*Built engine
*Wally 255 Fuel pump
* larger injectors
*Wideband

Depending on what you do for fuel, Porfueler, or MS, that will limit your capabilities. You are at a point where you need to decide to go big (spend alot of money) or go home.


PS: HP is irrelevant, TQ is what you want, hp is a sales number, TQ moves the car. That being said, You should looking into a 3.55 neon MTX with an LSD. Power is nothing if you cant get it to the ground.

But again, this is all stuff that we have posted on your topic already.. Just see below, and take that advice..


http://www.dsmtuners.com/forums/420a-bolt-tech/399115-420a-turbo-8psi.html

 

[Morales92]

yes, sadly this is my first turbo car. I didnt have that much at the time. I still dont.

I have the 255 wally
270 injectors i think they came from hahn
just ordered an AEM wideband

MS is cheaper but its kinda of hard to find a shop that would tune it since there isnt really anybody around me that i know who touch the 420a

 

[glowryder]

Your missing the main point to go bigger, safely:


*Built engine
*A way to accurately tune

I dont think MS is for you.. Honestly, like I said above if you dont have the cash to play, then dont play. Enjoy your car and save up. Just b/c you have larger injectors and a fuel pump, doesn't mean anything with out the other parts. you have no real way to tune it , so anything over then 8 psi is risking your motor.

We have told you what you need, it not opinions, they are facts. Read that post, and decide if you have 2500+ (ruff estimate) it will cost you to play. Unfortunately , you didn't take our advice the first time, landing you back in the same position you began in, except now you have a fresh stock motor...

 

[Gruff511]

i rebuilt my cousins 420a with all Stock OEM replacement parts such as pistons and rods and a stock head. the only things performance were race bearings and head studs and we put a 16g on it and run 9psi daily on stock injectors and a 8:1 FMU and under full boost at WOT we get around 13.1-13.5AFR. He has been running this setup for over a year now with no problems at all.
Im not saying this is at all reliable or safe for the motor because it is Not Tuned and your running kinda high fuel pressures and everything.

If i were you, since you rebuilt the motor to new parts even though they are stock. id run 10 psi till it blows(see how long it holds up for ) THEN go all out and get forged internals and everything to run High boost.

 

[KazooGS-T]

i rebuilt my cousins 420a with all Stock OEM replacement parts such as pistons and rods and a stock head. the only things performance were race bearings and head studs and we put a 16g on it and run 9psi daily on stock injectors and a 8:1 FMU and under full boost at WOT we get around 13.1-13.5AFR. He has been running this setup for over a year now with no problems at all.
Im not saying this is at all reliable or safe for the motor because it is Not Tuned and your running kinda high fuel pressures and everything.

If i were you, since you rebuilt the motor to new parts even though they are stock. id run 10 psi till it blows(see how long it holds up for ) THEN go all out and get forged internals and everything to run High boost.

That's super lean on the afr's... I see this ending badly soon.

 

[Boostinsideways]

Yeah 13.5 AFR I would shit a brick. The most I have ever seen my get to was 12.75 with a WOT 3rd gear pull.

I know I am a 4g63 guy but the principle is still the same. Higher the number the more chance you have of detonating. Which is bad. You basically MUST have a Wbo2 and some way to control fuel. The stock internals may hold to about 300 whp.

 

[Gruff511]

yea it is pretty lean but with out a tune and a cheap FMU it doesnt do too bad. the EGT are around 1530 which isnt crazy high. or am i wrong? and theres zero counts of knock

 

[phunny]

yea it is pretty lean but with out a tune and a cheap FMU it doesnt do too bad. the EGT are around 1530 which isnt crazy high. or am i wrong? and theres zero counts of knock

Umm, you will need a new motor soon. I was running 13.4:1 and I'm very glad my engine didn't take a crap on me. I'm on E85 with a built engine and I know she can't handle it. You or your friends 420a will not survive.

 

[glowryder]

" zero counts of knock " Not sure how you are even knowing this.. but yea.. way lean.. keep running it and let us know how badly the engine grenades. Maybe then you newbs will start taking the advice of people who have done this before.. 11.8 is what you want to shoot for, and with your setup Gruff, you wont get it. you really dont have a way to controll fuel. Enjoy the rebuild.

"If i were you, since you rebuilt the motor to new parts even though they are stock. id run 10 psi till it blows(see how long it holds up for ) THEN go all out and get forged internals and everything to run High boost. "

And why would he do that? who cares how long it would last, we already KNOW the limits of these engines on stock internals.. he just baught a new OEM engine (worst mistake evar).. Gruff, If you dont have any real advice, lbased on facts or knolwege, dont post.

OP. you know what you need to do based on this post and other ones.

 

[Josh97eclipse]

Me and Glowryder told you that you will wont more, And I also remember that you build cost was only 200 buck cheaper than if you would of went forged. If you went forged you could get more than you can now .

 

[Gruff511]

Its my cousins 420a that im talking about. I know and HE knows too that his set-up is the worst setup you can go with since you cant adjust fuel or tune but he dont care. And its not mines so i dont care what he runs.
And i never said anything about 13.5 being ideal afr that was just a statement of what his afr's are with his set-up.
i run MS3x on my 420a thats HOW I TUNE.FYI

 

[glowryder]

Ok, so thats even worse, IF you know its bad, why recommend it to a member here.. his goal is more boost , not a bad setup or a blown engine..

 

[Gruff511]

When did i recommend that?! 'Morales92' is on 7lbs. and wants more power so i ONLY gave an example of some ones setup thats at 9lbs.

My point of my FIRST post was to state that my cousin has been on "9psi" for over a year on a stock rebuilt motor, without a tune, and even with a cheap fuel setup, and it hasnt blown. All im saying is that with a new motor he could run a little more boost.(not like if its a built motor)
Theres tons of stock 420a turbo guys running 8psi daily with no problems.

 

[Anubis_4_99]

When did i recommend that?!

right here

If i were you, since you rebuilt the motor to new parts even though they are stock. id run 10 psi till it blows(see how long it holds up for ) THEN go all out and get forged internals and everything to run High boost.

 

[glowryder]

^ Got em...

 

[silicosys4]

This thread is a fail. Stop answering the OP's questions, and force him to look things up for his damn self. He's not listening to what anyone is telling him anyways. Just another "I'll start a thread and only pay attention to the posts that tell me what I wanted to hear".

 

[glowryder]

Agreed.. but i got "warned" last time i flamed him.. Its dishearting how we have to treat members like this.. even tho they show up, and in all likely hood, will not ever contribute.. Oh well. just like America.. trophies for all.

 

[Morales92]

sadly i didnt have money to buy that built engine you had up for sale, i would of but i couldnt. I just want more power without raising boost cause 10psi is a lot for a 420a with stock internals other than the head gasket. Only way i would go 10psi is if it was tuned right.

 

[Gruff511]

Yes if you want to keep the motor stock and running long then you should definitely be tuned. With a tune on the same psi your at now you'll get more power then what your making now.
Like suggested megasquirt will be best. If you want a more affordable megasquirt just go with msl or msll and just run fuel and let the stock ignition control spark. This way will also help you learn about MS and tuning.

 

[Shake_Zulla]

Yes if you want to keep the motor stock and running long then you should definitely be tuned. With a tune on the same psi your at now you'll get more power then what your making now.Like suggested megasquirt will be best. If you want a more affordable megasquirt just go with msl or msll and just run fuel and let the stock ignition control spark. This way will also help you learn about MS and tuning.

This ^
Also I wouldn't run 10psi that close to sea level... maybe Denver, but thats just what I would do.

 

[Gruff511]

This ^
Also I wouldn't run 10psi that close to sea level... maybe Denver, but thats just what I would do.

Im not talking about 10psi anymore. The OP said he wants to stay at the boost level he's at now, just wants more power out of it..so he needs a Tune*

 

[Morales92]

what do you guys think about the venom 400. Is it any good ? or just crap.

 

[Gruff511]

i dont know much about the venom 400 but after reading some reviews i wouldnt go with it. for the money spent on that just put it towards megasquirt. the venom 400 doesnt allow you to make adjustments to fuel or timing.