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Acceleration not just RAW power!
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Old 05 May 2009, 09:50 PM   #1 (permalink)
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Talking Acceleration not just RAW power!

Hi guys,
I was hoping you could help me out again! I'm gonna list my questions so people can give answers to the ones they know most about

1) could you give me hints for the best way to go about modding to get the best acceleration rather than big power?

2) filter or full induction system?

3) dump valve? which is best? (I love the 1 that makes a flutter sound or chatter noise but do they actually help the turbo?

4) what is the best order to do it all in as I'll be spacing it over each month lol
I got a list of things on my mind already but not sure what order I should do them in...
dump valve
induction kit
full exhaust system with highflow cat.
remapp? is this telling the ECU the new air and fuel mixture to stop it running lean or rich? should I get this done at the same time as the induction kit? do they do a dyno test whilst doing this?
suspension
brakes including braided hoses

I have looked on here but I cant find anything specific about acceleration rather than huge power!

ooh also does anyone know bout this run what you brung at north weild that on the 10th MAY? or is it the week after? I'm going

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Last edited by guyver1215; 05 May 2009 at 09:52 PM.
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Old 05 May 2009, 11:04 PM   #2 (permalink)
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Re: Acceleration not just RAW power!

1) just a thought on a budget to dont know how much you wana spend but an idea for further down along the line upgrade box to close gear ratio that will get you fast off the line gotta ask ring round for the gearbox specialists and see whats the options
2) Id go uprated k&n Panel filter
3)Have heard a lot of good about HKS
4)Well what ever parts you wana use say uprated panel filter, full exhaust and then the remap but take it v easy driving to the mapper when you have the aftermarket parts on your car as engine might not fully be capable off changes and wont be till you get it mapped so get it mapped asap after parts go on to make her more faster but take it handy till you get her mapped
5)Suspension Id go Tein as I said before heard all good stories about it
6)Brakes if you just after a good pad upgrade id go for the DS2500 Ferodos have them in my sti v6 ra and find them great and I use ferodo dot 4 fluid. How about upgrading to sti v7-8 Brembo discs and calipers in front dont know much about the conversion seen them on a guys classic impreza here looked mint hope it helps

A lot of guys into serious modifying will help you out more
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Last edited by stiimpreza1984; 05 May 2009 at 11:12 PM.
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Old 06 May 2009, 12:06 PM   #3 (permalink)
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Re: Acceleration not just RAW power!

short ratio box, lightweight fly wheel, short shifter, then go on a diet, fiberglass panels, plexigalss windows, strip out sound proofing etc etc and it'll go like a trooper.

i've driven a stripped out type ra, with plexglass but full roll cage, feck me it goes like stink up to 120!
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Old 06 May 2009, 03:21 PM   #4 (permalink)
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Re: Acceleration not just RAW power!

but that sounds well expensive tidgy! The diet bit I thought related to my weight lol...how rude thanks for the advice guys. Anyone else wanna join in the conversation?
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Old 06 May 2009, 06:44 PM   #5 (permalink)
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Re: Acceleration not just RAW power!

[quote=Tidgy;320799]short ratio box, lightweight fly wheel, short shifter, then go on a diet, fiberglass panels, plexigalss windows, strip out sound proofing etc etc and it'll go like a trooper.

i've driven a stripped out type ra, with plexglass but full roll cage, feck me it goes like stink up to 120![/quot
agree with tidgy get it on a diet
good panel filter not induction kit,save your money.
and stick with oe dump valve,save your money again,
with the money you have saved sort out suspension
or buy a big bottle of NOS
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Old 06 May 2009, 06:55 PM   #6 (permalink)
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Re: Acceleration not just RAW power!

Buy a motorbike

Think weight reduction best way, remove seats, spare tyre, run on nearly empty tank, buy smaller battery, remove air con pump, pipes and second fan unit, remove carpets, replace bonnet for carbon or alloy version, replace boot lid with the same, drain fluid from windscreen tank and pump up tyres to 45 psi this is the best way to reduce 1/4 mile times

But the advice already given is sound.... get rid of heavy and power sapping Cats.... but keep centre cat to put back on for MOT time...

Nobby
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Old 07 May 2009, 06:47 AM   #7 (permalink)
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Re: Acceleration not just RAW power!

wow I didnt even take that into consideration before thanks guys. I dont think i'll go that extreme as its my everyday drive to work car and if me and the mrs go out unfortunately shes one of these creature comfort go slow types (grr how annoying lol) but it has made me think of things I dont use that weigh the car down.
Actually does annyone know what they mean when they refer to alloys like this 17"7 whats the 7 stand for is it the offset? and what can I use on my scooby? didnt wanna go bigger than 17" but its got 205 50 16v at moment.
HOLYFIELD - wouldn't I benefit from a dump valve thats internal loop recirculate the gases?
There is another thing near the air filter that can be modded that gives a swirl sound??
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Old 08 May 2009, 06:36 AM   #8 (permalink)
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Re: Acceleration not just RAW power!

Anyone?
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Old 08 May 2009, 06:53 AM   #9 (permalink)
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Re: Acceleration not just RAW power!

Quote:
Originally Posted by guyver1215 View Post
wow I didnt even take that into consideration before thanks guys. I dont think i'll go that extreme as its my everyday drive to work car and if me and the mrs go out unfortunately shes one of these creature comfort go slow types (grr how annoying lol) but it has made me think of things I dont use that weigh the car down.
Actually does annyone know what they mean when they refer to alloys like this 17"7 whats the 7 stand for is it the offset? and what can I use on my scooby? didnt wanna go bigger than 17" but its got 205 50 16v at moment.
HOLYFIELD - wouldn't I benefit from a dump valve thats internal loop recirculate the gases?
There is another thing near the air filter that can be modded that gives a swirl sound??
17's look great... and some say best... but larger wheel = higher gear = slower acceleration time! and more rolling resistance eeek! So many factors to consider if your after straight line sprint times...

Best way to gain torque... is to get rid of cats and get uprated ordinary green panel filter, then uprate fuel pump, get headers bandaged in heat wrap, then a Remap EKU Tek or the like... and tell mapper what you prefer and they can dial in your prefrence within reason... BOB RAWLE comes highly recomended

Oh yes and original dump valve is best... dont waste money unless you want the noise... Vent to atmosphere.... they can cause problems and add nothing to performance IMHO

Good luck fella
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Last edited by nobby248; 08 May 2009 at 06:56 AM.
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Old 08 May 2009, 08:20 AM   #10 (permalink)
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Re: Acceleration not just RAW power!

if going for the wheel n tyre set up,fine the lightest rims n the stickiest tyre...
my Inovit STV rims are only 9.6kg,iirc one of the lightest rims about
and keep it 17",better traction/handling n cheaper tyres too!!..lol

correct tre size for 17's is 204/45/17 88w,front pressure 31,rear 28..for normal road useage..
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Old 08 May 2009, 12:07 PM   #11 (permalink)
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Re: Acceleration not just RAW power!

What year and model is the car as this would dictate wether a rempa is possible on the standard ecu.

The easiest way to get good acceleration without big power is to lighten the car.
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Old 08 May 2009, 06:58 PM   #12 (permalink)
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Re: Acceleration not just RAW power!

Quote:
Originally Posted by jd View Post
What year and model is the car as this would dictate wether a rempa is possible on the standard ecu.

The easiest way to get good acceleration without big power is to lighten the car.
Its a 1996 face lift P reg turbo 2000
got some pictures on my profile.

I love the feel of acceleration but its not straight sprints i'll use it for. The odd smile now and then ...hehe
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Old 08 May 2009, 07:00 PM   #13 (permalink)
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Re: Acceleration not just RAW power!

anyone heard of BC suspension thier kit looks the nuts lol

BC Racing UK - Suspension Systems
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Old 08 May 2009, 07:44 PM   #14 (permalink)
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Re: Acceleration not just RAW power!

Quote:
Originally Posted by guyver1215 View Post
Actually does annyone know what they mean when they refer to alloys like this 17"7 whats the 7 stand for is it the offset? and what can I use on my scooby? didnt wanna go bigger than 17" but its got 205 50 16v at moment.
The 7 7.5 or 8 which are general ones are the wheels width think most 17`s are 7 or 7.5in wide, offsets about et45 i believe on a classic though small amounts either side ya can get away with depending on wheel width/tyre size and how much you intend lowering the car.Also before you look at wheels worth bearing in mind not all calipers an discs will fit behind 16`s or 17`s decide which brakes(if you decide youre uprating the calipers)you want to fit before you buy new wheels(and not all style wheels will miss the calipers even then)


The flutter sound your referring to of the dumpvalve is actually compressor stall when no dumpvalves fitted at all,when butterfly shuts on throttlebody the turbo for a tiny amount of times still making boost-with no dumpvalve fitted this stalls compressor wheel slightly as the built up pressure has nowhere to go,an gives off the noise youre on about-more noticeable with an induction kit fitted aswell.


Like others have said weight makes a big difference,lightweight flywheel will make it accelerate quicker(ive got one as have others on here)but wont show up as a power gain as the powers not changed just weight the engines got to turn has decreased-simularly with the wheels and even brake discs if you want to take it that far-know one of my 18in wheels weighs about the same as 2 of the original 16`s.
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Last edited by uk dave; 08 May 2009 at 07:58 PM.
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Old 09 May 2009, 12:35 AM   #15 (permalink)
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Re: Acceleration not just RAW power!

cheers guys ur very helpfull I'll be going extremescoobies sat morning to get my tracking a camber checked I'm getting excited already and I only had the car 3 weeks! ooo i got the scooby bug real bad lol I mean since I got it i've seem some guys driving the opposite way to me in classics and even an 06 an got a nod or wave! hehe I feel privaliged and they dont even insure me ho ho ho! (sorry guys)

sunday north weald airfield
just outside chelmsford essex
run what you brung!
runs are 10-5pm gates open at 8:30
if you free and around you should pop down!
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