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450BHP! STI vs WRX

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Old 21 March 2013 | 06:41 PM
  #31  
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Originally Posted by L.J.F
@ the OP- are planning on using a classic or new age car?

well I prefer the look of the Newage but if the right P1 came along at the time of look seriously I would snap it up - got a thing for the 2 door classics.

Iv had alot of advice and it's made me look at the final goal im trying to achieve and also my budget.

now im not sure what im doing - lol not sure i ever did
Old 21 March 2013 | 07:49 PM
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Originally Posted by logic1980
well I prefer the look of the Newage but if the right P1 came along at the time of look seriously I would snap it up - got a thing for the 2 door classics.

Iv had alot of advice and it's made me look at the final goal im trying to achieve and also my budget.

now im not sure what im doing - lol not sure i ever did
Just dont rush into anything. Keep reading and learning and you'll be just fine fella.
Old 21 March 2013 | 08:42 PM
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Build the best car you can afford, don't worry about bhp numbers.

I run 460 and with weight reduction that makes a fast newage! The best part of the car Is the confidence to use it without worrying about every sound!
Old 21 March 2013 | 09:39 PM
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My P1 is going up for sale but I don't think it's the sort of car for your needs...
Old 22 March 2013 | 10:15 AM
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Originally Posted by MattyB1983
Just dont rush into anything. Keep reading and learning and you'll be just fine fella.
thanks fella - think thats the best plan - im not in the position just yet to jump anyway so got at least 6 months planning to do first -

Im a design engineer in the motor industry ( cooling systems ) so its in my natural to plan the whole project out and do costings so although now im clueless i do hope by the time I do anything i think with you guys help i should be sailing in the right direction
Old 22 March 2013 | 12:27 PM
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Originally Posted by logic1980

Im a design engineer in the motor industry ( cooling systems )

JLR?

Similar job matey, but a different OEM!
Old 22 March 2013 | 12:37 PM
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No not Jag - lol although nearly once applied

I work in the tier 2 supplier market not as many hoops and regs to jump through and wider customer base from Lotus/mclaren to military equipment like tank etc - each day another task

always the same issues though - not space and huge heat rejection requirements.

which does lead me slightly at thinking about the FMIC - does this sit in front of the OEM radiator? if so this will push the heat from the IC into the rad and with extra horse power already adding extra loads has anyone seen over heating issues

Last edited by logic1980; 22 March 2013 at 12:41 PM.
Old 22 March 2013 | 12:44 PM
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@legacy_gtb so which OEM you at then? you chassis engineer or cooling specific?
Old 22 March 2013 | 12:50 PM
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No mate, theres insignificant temperature rise of the air through the IC compared to what the rad has to deal with.
Old 22 March 2013 | 01:09 PM
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i think at high speeds ( road speed ) and ( turbo RPM ) I would totally agree but there are situations ( track on hot day ) where increased horse power and low road speed high turbo rpm like accelerating out of corners repeatedly could see a 10% increase of heat pick up in the radiator. although this is assuming full face coverage of the rad by the IC and im sure thats not the case.
Just wondered if anyone had actually run tests on temp out the rad before and after in the same conditions?

Guess its not caused issues as lots of kits out there though.

Like i said after market dont have the same hoops and requirements that OEM put on the bench marks
Old 22 March 2013 | 01:18 PM
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logic check your pm's
Old 22 March 2013 | 01:26 PM
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Logic, i'd be more concerned about oil temps rather than water temps myself
Old 22 March 2013 | 01:29 PM
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hundreds if not thousands of people use a fmic on an impreza without water temp issues.
Old 22 March 2013 | 01:34 PM
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Tommy nothing in the PM's ???

Yes i agree about the oil Tidgy - an oil cooler could easily be made to fit up front and not be in front of the rad - with reduced heat in the oil the radiator doesn't have to work as hard rejecting the extra on its own.

What gains are seen using the FMIC over the STI TMIC
Old 22 March 2013 | 01:40 PM
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my classic had front mount, then oil cooler then rad and didnt suffer any water temp issues by the way. before oil cooler it did suffer oil temp issues though.

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although from this one you can see about half the cooler is actualy above the level of the front mount.

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gains are a bit debatable, clinic did a back to back and found 20bhp difference at 300 so 300 became 320. its more about what you dont loose. hot days top mounts struggle to keep inlt tempos down, there in a bad location and the bonnet scoop (which is the airflow area) is pretty small compard to a big open front grill.
Old 22 March 2013 | 01:44 PM
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Major advantage i see is no heat soak when your stationary!

Santa pod, hot day, everyone sits there idling to get the temps ok, then guns it .... the intercooler is then essentially an interheater ...... con rod fondoo!

With cooling, dont worry too much, the thermostats (water and oil) do alot of work. i think the jist is that on a standard rad (good enough for the gobstopper) run an uprated (cooler) thermostat, or with an uprated rad, run the standard thermostat or things dont get up to temp.

When buying an oil cooler, make sure it has a thermostatic sandwich plate.

Then your pretty much set for whatever power you fancy.

.... least i think thats the jist, it certainly works well for me.
Old 22 March 2013 | 01:51 PM
  #47  
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true - that heat soak must be a killer in the hot sun - not sure i remember what that is in this country mind.........

I was only thinking out loud then as i assuming things would be fine but seen some things people design on OEM go a bit wrong and adding things in front of the Rad is the main offender - saying that though OEM car manufacturers plan the bench marks at silly levels and most cooling systems would work on the sun towing the moon so they have extra capacity
Old 24 March 2013 | 04:23 PM
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I had a 450 sti blob
Easy to drive to be honest a impreza with 450 is easy to control
And yes it will pee all over gt3 s as I did
Obviously you need brake upgrades handling and torque
Old 25 March 2013 | 10:34 AM
  #49  
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I think the cost of getting to 450BHP will put me off from the sounds of it and put me nearer 350 mark which im sure for me that will be fast enough ( for now )

I think the plan of action i will take is prepare the car for the power first with anti roll / lift / etc kit ( whiteline possibly - Scooby world do a pack with BC coilovers - but need more research first )

then il look at the brakes - probably at the same time as handling.

then il save for ages ( lol ) and get FMIC, exhaust, look at induction and maybe simtek ecu?? and remap all at the same time.

then I.C.E. after that il be skint and probably living in the car - haha

Last edited by logic1980; 25 March 2013 at 10:37 AM.
Old 25 March 2013 | 06:14 PM
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It's not the overall hp
It's how fast the car spools that makes a great scooby rd car
So choose wisely
I used to get advice then look who people were friends with in profiles
Or previous posts etc to see if bias towards what they tell you
Info is all on hear just keep the bs ear plugs handy
Old 25 March 2013 | 06:28 PM
  #51  
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Try state there 9181 - think iv had some great advice so far and although the end goal may change and evolve - for now i think il save abit longer and go for the blob STI as the blob's are my favourite shape and the STI does have a lot more potential down the road, guess iv always wanted one too and the WRX was solely a cost cutting thought.

Getting the reason for doing things cleared up and a positive direction to travel from there is then key
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