WRX Import V2 320-340 bhp?
18 April 2011, 07:52 AM
#1
Scooby Regular
Thread Starter
iTrader: (2)
Join Date: Mar 2010
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
WRX Import V2 320-340 bhp?
Hi guys i am sure this subject has been covered before so i apologise in advance, i have a V2 WRX import that i al looking to get to 320-340 BHP, now my question is what will i need to change to achieve this figure, from my research i know i will need to have fitted
ESL Daughter Board or aftermarket ECU (pros and cons of each?)
Larger TMI or FMI
Exhaust system with decat (got this already)
Bigger injectors (what size?)
thanks in advance for your answers !
ESL Daughter Board or aftermarket ECU (pros and cons of each?)
Larger TMI or FMI
Exhaust system with decat (got this already)
Bigger injectors (what size?)
thanks in advance for your answers !
18 April 2011, 08:12 AM
#2
Scooby Regular
iTrader: (27)
Join Date: Feb 2004
Location: Cheshire
Posts: 1,597
Likes: 0
Received 0 Likes
on
0 Posts
is it a jdm or uk?
to be honest i reckon your bhp figure is abit optimistic for standard wrx internals & gearbox. at that sort of power upwards its going to start costing large amounts of money for the car to run safely & well
Needs to be mapped with something like an apexi power fc by a pro, front mount intercooler, bigger injectors, hows the ageing turbo? over 340/350 the tdo5 turbo will possibly be running flat out. then there is the old pistons & bearings etc.
If you want to keep it safe & run 280 - 300 bhp (like me) then fit a pre programmed chip in the 4th socket in your ecu - i would recommend the scoobyecu chip. This will alter the fuel to run on super unleaded & the supporting mods are decat system, good panel filter & a healthy engine.
Even this power can make coil packs play up if they are getting old & cracked.....
sure someone though will be along with a more detailed bit of info
to be honest i reckon your bhp figure is abit optimistic for standard wrx internals & gearbox. at that sort of power upwards its going to start costing large amounts of money for the car to run safely & well
Needs to be mapped with something like an apexi power fc by a pro, front mount intercooler, bigger injectors, hows the ageing turbo? over 340/350 the tdo5 turbo will possibly be running flat out. then there is the old pistons & bearings etc.
If you want to keep it safe & run 280 - 300 bhp (like me) then fit a pre programmed chip in the 4th socket in your ecu - i would recommend the scoobyecu chip. This will alter the fuel to run on super unleaded & the supporting mods are decat system, good panel filter & a healthy engine.
Even this power can make coil packs play up if they are getting old & cracked.....
sure someone though will be along with a more detailed bit of info
18 April 2011, 08:19 AM
#3
Scooby Regular
Thread Starter
iTrader: (2)
Join Date: Mar 2010
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
is it a jdm or uk?
to be honest i reckon your bhp figure is abit optimistic for standard wrx internals & gearbox. at that sort of power upwards its going to start costing large amounts of money for the car to run safely & well
Needs to be mapped with something like an apexi power fc by a pro, front mount intercooler, bigger injectors, hows the ageing turbo? over 340/350 the tdo5 turbo will possibly be running flat out. then there is the old pistons & bearings etc.
If you want to keep it safe & run 280 - 300 bhp (like me) then fit a pre programmed chip in the 4th socket in your ecu - i would recommend the scoobyecu chip. This will alter the fuel to run on super unleaded & the supporting mods are decat system, good panel filter & a healthy engine.
Even this power can make coil packs play up if they are getting old & cracked.....
sure someone though will be along with a more detailed bit of info
to be honest i reckon your bhp figure is abit optimistic for standard wrx internals & gearbox. at that sort of power upwards its going to start costing large amounts of money for the car to run safely & well
Needs to be mapped with something like an apexi power fc by a pro, front mount intercooler, bigger injectors, hows the ageing turbo? over 340/350 the tdo5 turbo will possibly be running flat out. then there is the old pistons & bearings etc.
If you want to keep it safe & run 280 - 300 bhp (like me) then fit a pre programmed chip in the 4th socket in your ecu - i would recommend the scoobyecu chip. This will alter the fuel to run on super unleaded & the supporting mods are decat system, good panel filter & a healthy engine.
Even this power can make coil packs play up if they are getting old & cracked.....
sure someone though will be along with a more detailed bit of info
whats this scoobyecu chip ? it is a generic chip to raise fueling and boost ? where are they avalable from ? have you had any problems ?
thanks
18 April 2011, 08:39 AM
#4
Scooby Regular
Join Date: Jul 2010
Location: llanelli, boyo
Posts: 326
Likes: 0
Received 0 Likes
on
0 Posts
i have a 95 wrx v limited, standard 260ps. i have been told 300 is about the limit on standard injectors. exhaust and top mount are good for 350 i think.
as above, i have also sourced an alternative map on a chip to go into the ecu,s spare socket. although mine is a jap spec map that requires 100ron, i am currently using evoscan to log what my ecu is doing before i use the alternative map.
esl daughterboards are about 500-550 supplied and fitted.
as above, i have also sourced an alternative map on a chip to go into the ecu,s spare socket. although mine is a jap spec map that requires 100ron, i am currently using evoscan to log what my ecu is doing before i use the alternative map.
esl daughterboards are about 500-550 supplied and fitted.
18 April 2011, 09:46 AM
#5
Scooby Regular
Thread Starter
iTrader: (2)
Join Date: Mar 2010
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
i have a 95 wrx v limited, standard 260ps. i have been told 300 is about the limit on standard injectors. exhaust and top mount are good for 350 i think.
as above, i have also sourced an alternative map on a chip to go into the ecu,s spare socket. although mine is a jap spec map that requires 100ron, i am currently using evoscan to log what my ecu is doing before i use the alternative map.
esl daughterboards are about 500-550 supplied and fitted.
as above, i have also sourced an alternative map on a chip to go into the ecu,s spare socket. although mine is a jap spec map that requires 100ron, i am currently using evoscan to log what my ecu is doing before i use the alternative map.
esl daughterboards are about 500-550 supplied and fitted.
Last edited by wazzawrx; 18 April 2011 at 09:49 AM.
18 April 2011, 10:36 PM
#7
Scooby Regular
iTrader: (4)
Join Date: Jan 2009
Location: wirral
Posts: 597
Likes: 0
Received 0 Likes
on
0 Posts
Hi im doing a similar power increase on 95 import wrx bin told to get 440cc injectors also a Carl Davey fitting kit because diff fitting on v2 cars walbro 255 fuel pump fmic a fuel pressure reg also a full decat system with a esl board and ported exhaust headers plus a map and shud get about 340 any more and your internals mite wave goodbye hope this helps
Trending Topics
18 April 2011, 10:57 PM
#8
Scooby Regular
iTrader: (4)
Join Date: May 2009
Location: Worcestershire
Posts: 1,132
Likes: 0
Received 0 Likes
on
0 Posts
Plan for 300 bhp then look to the cars handling. Power is nothing without control. Thats my plan. Chasing these big bhp figures can be a waste of time and money. Look for a fast road setup. Reduce weight, look at the cars power to weight.
19 April 2011, 08:20 AM
#9
Scooby Regular
iTrader: (27)
Join Date: Feb 2004
Location: Cheshire
Posts: 1,597
Likes: 0
Received 0 Likes
on
0 Posts
Hi im doing a similar power increase on 95 import wrx bin told to get 440cc injectors also a Carl Davey fitting kit because diff fitting on v2 cars walbro 255 fuel pump fmic a fuel pressure reg also a full decat system with a esl board and ported exhaust headers plus a map and shud get about 340 any more and your internals mite wave goodbye hope this helps
dont forget your internals on that power, you will be pushing them very hard.
as mentioned, 300 max is ok, but work on also the handling & definately the brakes....
19 April 2011, 08:55 AM
#10
Scooby Regular
iTrader: (3)
Join Date: Aug 2000
Location: 1600cc's of twin scroll fun :)
Posts: 25,565
Likes: 0
Received 2 Likes
on
2 Posts
Brakes (a good 4 pot setup, subaru 4 pots min, AP's are much better though 
), injectors will be pushing it, so will the top mount, your going to have to go front mount really for over 300bhp on that age of car, a 2.5 inch exhaust will suffice also, if you go fmic then you need a caik (cold air induction kit) really as you cant use your airbox 
but in reallity you would have to change alot to get that sort of power out of your car properly (fuel pump, injectors, brakes, maybe suspension as its going to be a little tired, fmic, induction, exhaust, ecu/chip etc).
Tony
), injectors will be pushing it, so will the top mount, your going to have to go front mount really for over 300bhp on that age of car, a 2.5 inch exhaust will suffice also, if you go fmic then you need a caik (cold air induction kit) really as you cant use your airbox but in reallity you would have to change alot to get that sort of power out of your car properly (fuel pump, injectors, brakes, maybe suspension as its going to be a little tired, fmic, induction, exhaust, ecu/chip etc).Tony
19 April 2011, 06:04 PM
#11
Scooby Regular
iTrader: (4)
Join Date: Jan 2009
Location: wirral
Posts: 597
Likes: 0
Received 0 Likes
on
0 Posts
no need to get or port your headers unless 400bhp+ is your target, the subaru ones are perfectly adequate
dont forget your internals on that power, you will be pushing them very hard.
as mentioned, 300 max is ok, but work on also the handling & definately the brakes....
dont forget your internals on that power, you will be pushing them very hard.
as mentioned, 300 max is ok, but work on also the handling & definately the brakes....
ive got kyb suspension and 4 pots already on also when raising power on a classic try not to get hung up on bhp numbers the classic is much lighter than the modern cars and have bin known to be quicker than bigger bhp newer cars power to weight etc 
20 April 2011, 08:29 AM
#12
Scooby Regular
Thread Starter
iTrader: (2)
Join Date: Mar 2010
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
i think after listening to alot of peoples views on here and because i dont fancy a engine rebuild or gearbox swap i think i will aim for a healthy 300bhp.
To achieve this i am going to go for a chip as mentioned by timmyajmy93wrx, but also change the slanty TMI as i was out yesterday and noticed a drop in power, can only assume a rise in intake temps because of the hot weather.
The rest of my budget will be spent on handeling mods, I already have belstein shocks with Eibach springs, 21mm front arb, 24mm rear arb, front and rear strut braces, need four decent tyres and geometry set up and see how she is from there.
Any suggestions to what i have planned would be great !
Thanks
Warren
To achieve this i am going to go for a chip as mentioned by timmyajmy93wrx, but also change the slanty TMI as i was out yesterday and noticed a drop in power, can only assume a rise in intake temps because of the hot weather.
The rest of my budget will be spent on handeling mods, I already have belstein shocks with Eibach springs, 21mm front arb, 24mm rear arb, front and rear strut braces, need four decent tyres and geometry set up and see how she is from there.
Any suggestions to what i have planned would be great !
Thanks
Warren
22 April 2011, 05:30 PM
#13
no need to get or port your headers unless 400bhp+ is your target, the subaru ones are perfectly adequate
Perhaps you were thinking of tubular headers???
yeh i meant no need to change from subaru ones as they can handle the power.
24 April 2011, 11:56 AM
#15
Glad we cleared that up Tim as most of your posts are very sensible.
Ported headers with a matched uppipe will give a good improvement on any car, standard or otherwise. At some point tubular headers become an option but unfortunately the uppipe supplied with the 3 bolt tubular headers GT2 type is a complete disaster hence my specially designed 3 bolt uppipe that provides tremendous performance enhancements with the tubular headers.
The critical factors in getting the best from these cars is the selection of the right turbo for what you want to achieve, the right headers and uppipe and the right mapper. Everything else falls in to place.
Ported headers with a matched uppipe will give a good improvement on any car, standard or otherwise. At some point tubular headers become an option but unfortunately the uppipe supplied with the 3 bolt tubular headers GT2 type is a complete disaster hence my specially designed 3 bolt uppipe that provides tremendous performance enhancements with the tubular headers.
The critical factors in getting the best from these cars is the selection of the right turbo for what you want to achieve, the right headers and uppipe and the right mapper. Everything else falls in to place.
Thread
Thread Starter
Forum
Replies
Last Post
