Reaching 350 on stock twins
Senior Member
Joined: May 2006
Posts: 292
Likes: 0
From: Pearland/Houston
IMHO, I think it would be tough to reach 350 rwhp w/ stock ports, unported wastegate and a restrictor in the exhaust. Maybe if you get an excellent tune, but the base map wont help out any either.
With my setup (sig) I plan on reaching 350 rwhp or very close on no more than 14-14.5 psi.
With my setup (sig) I plan on reaching 350 rwhp or very close on no more than 14-14.5 psi.
[QUOTE=BlueRex]
Brian, get an efini y-pipe
Question...if you're running about 12psi max, how necessary is the y-pipe? Does it expand and contract, or is it just a safety measure so you don't have to replace a cracked one in the future?
Brian, get an efini y-pipe
Question...if you're running about 12psi max, how necessary is the y-pipe? Does it expand and contract, or is it just a safety measure so you don't have to replace a cracked one in the future?
I run 12psi and the rubber gasket on my y-pipe cracked so I was only getting 7psi. The series 7/8 part is better because it doesn't use a gasket and is all metal, reliability mainly. Also it might flow a bit better because I think the bend is less restrictive. It is on the hotside of the intercooler but I don't think the plastic expands or contracts enough to create an issue for anything other than reliability.
-Andy
-Andy
My goal is also 350 with the stock twins and i know thats going to be hard.. so i want to get as much as possible with the stock ports untill the engine goes and i hope its not any time soon... but id be happy between 320-340
It Just Feels Right
Joined: Apr 2005
Posts: 720
Likes: 2
From: Southern Maryland
Originally Posted by bajaman
Mahjik has the right of it. A ported engine would go a long way alone towards your goals, but obviously you are trying to get there with 'external' mods before you consider tearing the engine apart and doing more work that way.
I guess I have to ask, "why?". Your car is sweet, already makes some good reliable HP.
When is enough, enough?
I guess I have to ask, "why?". Your car is sweet, already makes some good reliable HP.
When is enough, enough?
Senior Member
Joined: May 2006
Posts: 292
Likes: 0
From: Pearland/Houston
Originally Posted by FD3S2005
My goal is also 350 with the stock twins and i know thats going to be hard.. so i want to get as much as possible with the stock ports untill the engine goes and i hope its not any time soon... but id be happy between 320-340
if your going to be pushing your car to its near max capacity w/ the stock ports, wastegate, fuel system, reliability is going to drastically decrease. Especially with a 350 rwhp goal.
If you don't want the engine to "go", think about settling for 300-320 rwhp.
I know, it seems lame next to these 450 rwhp single turbo monster cars you see on these forums, but I would imagine you would be satisfied with the power without sacrificing any more reliability than you have to.
even if he aims for 320 shouldnt he at least upgrade the pump and injectors to 1300....can you upgrade secondaries to 1000c instead...
just seems like u need a little more play room for 12.5psi everyday on the fuel system
just seems like u need a little more play room for 12.5psi everyday on the fuel system
Originally Posted by Fsunoles06
Well to put it in the simplest way possible---
if your going to be pushing your car to its near max capacity w/ the stock ports, wastegate, fuel system, reliability is going to drastically decrease. Especially with a 350 rwhp goal.
If you don't want the engine to "go", think about settling for 300-320 rwhp.
I know, it seems lame next to these 450 rwhp single turbo monster cars you see on these forums, but I would imagine you would be satisfied with the power without sacrificing any more reliability than you have to.
if your going to be pushing your car to its near max capacity w/ the stock ports, wastegate, fuel system, reliability is going to drastically decrease. Especially with a 350 rwhp goal.
If you don't want the engine to "go", think about settling for 300-320 rwhp.
I know, it seems lame next to these 450 rwhp single turbo monster cars you see on these forums, but I would imagine you would be satisfied with the power without sacrificing any more reliability than you have to.
of course.. fuel comes first... i dont mind these 400+ im not one to want that much ill end up killing myself or the car
Should be porting the wastegate either Tuesday or Friday. I am going to try and pull the turbos tomorrow.
PFC/midpipe come on Wednesday, so if I have the wastegate ported then I'll add the midpipe, if not I guess it's sitting in the garage until it's done.
fuel pump and injectors (do I need to get new primary and secondary?) are going to be next then whenever Steve comes to the area I'll do a tune by him, but in the mean time, I can just run base map on the PFC right?
PFC/midpipe come on Wednesday, so if I have the wastegate ported then I'll add the midpipe, if not I guess it's sitting in the garage until it's done.
fuel pump and injectors (do I need to get new primary and secondary?) are going to be next then whenever Steve comes to the area I'll do a tune by him, but in the mean time, I can just run base map on the PFC right?
You can buy new injectors or you can ship out your current ones to be rebuilt for higher flow, or tested if you want to keep the primaries at the current (550cc) flow rate (ensure that they're working properly) I wouldn't run a midpipe on the PFC base map, it'd probably be lean.
-Andy
-Andy
http://opus.bloomcounty.org/~patrick/pfc/
go here to get the mod map and you'll be close on tuning
check out my sig., I had these mods plus a SMIC on the mod map and afr was safe - with a little of my own street tuning
with these mods I was close to 350rwhp and only running 13.5psi
go here to get the mod map and you'll be close on tuning
check out my sig., I had these mods plus a SMIC on the mod map and afr was safe - with a little of my own street tuning
with these mods I was close to 350rwhp and only running 13.5psi
Originally Posted by Mahjik
There are thousands of people who have run those boost levels on the stock fuel system on these cars, without problems. Heck they were doing it LONG before most people here owned or knew about these cars. There is more to running more power on these cars than just fuel (i.e. charge temps, ignition, etc).
HardHitter,
Are you looking for around 350rwhp? If so, not too many cars make it there on stock ports using the stock twins and the stock fuel system. With the stock fuel system, you can get there on 15 PSI (which you can do on the stock fuel system, and its been proven) but you need a ported engine to do so. Without a ported engine, you'll most likely need to run higher boost, therefor requiring more fuel. I believe you can get close to that number at 15 PSI. Heck, maybe with some Steve Kan magic dust, you can get there but at 15 PSI but its not likely without engine porting.
HardHitter,
Are you looking for around 350rwhp? If so, not too many cars make it there on stock ports using the stock twins and the stock fuel system. With the stock fuel system, you can get there on 15 PSI (which you can do on the stock fuel system, and its been proven) but you need a ported engine to do so. Without a ported engine, you'll most likely need to run higher boost, therefor requiring more fuel. I believe you can get close to that number at 15 PSI. Heck, maybe with some Steve Kan magic dust, you can get there but at 15 PSI but its not likely without engine porting.
(i.e. charge temps, ignition, etc.) < right on! people dont realize how important intake temps are especially with something that heats the air up like the stock twins do.
Lives on the Forum
Joined: Dec 2001
Posts: 14,716
Likes: 10
From: San Lorenzo, California
350 on stock twins and stock mtor is a peice of cake. just get more fuel, a midpipe, and a tune for 15 psi.
http://opus.bloomcounty.org/~patrick/pfc/
go here to get the mod map and you'll be close on tuning
go here to get the mod map and you'll be close on tuning
Lives on the Forum
Joined: Mar 2001
Posts: 5,014
Likes: 40
From: CT
Originally Posted by rynberg
Not with a safe tune for 91 octane it isn't.
The "base mod" map on that site is the default PFC map. Several of the other maps on that site would blow your motor if loaded as is. They are dangerous and unsuitable for use, which is why they are no longer linked in the PFC forum.
The "base mod" map on that site is the default PFC map. Several of the other maps on that site would blow your motor if loaded as is. They are dangerous and unsuitable for use, which is why they are no longer linked in the PFC forum.
Originally Posted by rynberg
Not with a safe tune for 91 octane it isn't.
The "base mod" map on that site is the default PFC map. Several of the other maps on that site would blow your motor if loaded as is. They are dangerous and unsuitable for use, which is why they are no longer linked in the PFC forum.
The "base mod" map on that site is the default PFC map. Several of the other maps on that site would blow your motor if loaded as is. They are dangerous and unsuitable for use, which is why they are no longer linked in the PFC forum.
I was under the impression that the PFC came with the stock map unless specified otherwise - mine did
and why would the other maps blow your motor if you had similar mods? are the files corrupted and have false numbers? please explain as I have used them as references for my own tuning
Lives on the Forum
Joined: Dec 2001
Posts: 14,716
Likes: 10
From: San Lorenzo, California
sorry,
I was under the impression that the PFC came with the stock map unless specified otherwise - mine did
and why would the other maps blow your motor if you had similar mods? are the files corrupted and have false numbers? please explain as I have used them as references for my own tuning
I was under the impression that the PFC came with the stock map unless specified otherwise - mine did
and why would the other maps blow your motor if you had similar mods? are the files corrupted and have false numbers? please explain as I have used them as references for my own tuning
Most of the maps on that site have huge negative splits, some even under boost! Several of those maps were tuned at XS on Power Excel software, meaning that you cannot use the fuel maps (XS modified the base map to hide their mapping on the corrections map).
Originally Posted by Rotary Experiment Seven
I did 368 many years ago with M2 intake, downpipe, large intercooler, resonated midpipe, greddy sp catback, power fc, and fuel system.
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