Cooper_GTI Posted February 6, 2011 Report Share Posted February 6, 2011 I was less than impressed with my GTI's performance, so i decided to try and make it a bit a quicker.So far i have done the following:Lightened flywheelAshley 4-1 manifoldDecatPipercross panel filterUprated air intakeLightweight wheelsI feel that i now have a good basis for some proper engine work, as all of the above mods really didnt do a fat lot in terms of performance.Would the next logical step be head work, or maybe cams?I have thought about bike carbs too! Quote Link to comment Share on other sites More sharing options...
dj_lupz Posted February 6, 2011 Report Share Posted February 6, 2011 Cams and bike carbs would be my next choice. Quote Link to comment Share on other sites More sharing options...
Bickerton Posted February 6, 2011 Report Share Posted February 6, 2011 What's your budget? Quote Link to comment Share on other sites More sharing options...
scotty_82 Posted February 6, 2011 Report Share Posted February 6, 2011 (edited) Carbs or tb's ?There is a difference. Edited February 6, 2011 by scotty_82 Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 6, 2011 Author Report Share Posted February 6, 2011 Well my old nova redtop was running 45 webers, which gave a huge hike in power and torque, but i returned 10-15mpg, which was crippling! However, i am led to believe bike carbs are more economical and not quite as rawcus as webers and can even be so smooth that its hard tell its not standard!Throttle bodies is out of the question! I'm not spending £2k plus for an extra 20-30bhp?Some cams would probably next on the agenda then? What would you recommend for the GTI? And will it still maintain the VVT? Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted February 6, 2011 Report Share Posted February 6, 2011 Have you had it on the rollers to see where its at now? Quote Link to comment Share on other sites More sharing options...
Bickerton Posted February 6, 2011 Report Share Posted February 6, 2011 Throttle bodies is out of the question! I'm not spending £2k plus for an extra 20-30bhp?Doesn't need to be that much, and there's alot more to bodies than a bit of a hp gain Quote Link to comment Share on other sites More sharing options...
scotty_82 Posted February 6, 2011 Report Share Posted February 6, 2011 I cant see the point in going backwards to try to come forwards. Id rather save and go for bodies then try to set it up on carbs. Quote Link to comment Share on other sites More sharing options...
Gti paul Posted February 6, 2011 Report Share Posted February 6, 2011 All pends on your Budget Buddy,TBH if i was thinking going down the road of throttle bodies u maywell just change to forced induction as N/a lumps aint that cheap to tune for the amount of £££ thrown into it. Quote Link to comment Share on other sites More sharing options...
scotty_82 Posted February 6, 2011 Report Share Posted February 6, 2011 Well working on that theory it would be more beneficial just to stick with management and get it mapped. Quote Link to comment Share on other sites More sharing options...
CasperGTI Posted February 6, 2011 Report Share Posted February 6, 2011 TB's will be in the region of 1700 plus wiring and setup time.Tied in with head work and cams, i cant see why ~170bhp isn't achievable. Saying that, a FI setup will cost you more than that, and you ill see from 170bhp plus if done right. Im going TB's with my new charger setup, Which i cant wait to get building! Quote Link to comment Share on other sites More sharing options...
karl Posted February 12, 2011 Report Share Posted February 12, 2011 (edited) Carbs will give you issues come MOT time.I have been looking at getting more power from my GTI which i was going to stick a diesel lump in although i changed my mind after pricing up suspension valved to suit the extra weight . Cams with a gasflowed ported head and larger valves if possible along with a full exhaust and re map after that its going to get very expensive . Edited February 12, 2011 by karl Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted February 12, 2011 Report Share Posted February 12, 2011 I have been looking at getting more power from my GTI which i was going to stick a diesel lump in Someone get a doctor, this man is ill! Quote Link to comment Share on other sites More sharing options...
karl Posted February 13, 2011 Report Share Posted February 13, 2011 Someone get a doctor, this man is ill! After using the car a bit i came to my senses / i am looking at restoring the car a bit now but money is an issue due to having another car . Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 13, 2011 Author Report Share Posted February 13, 2011 MOT's are not an issue mate and i've already decatted it anyway.I think i'm gonna go for some cams, but not sure if there any cams available which allow the VVT to be kept...? Quote Link to comment Share on other sites More sharing options...
Defcon5 Posted February 13, 2011 Report Share Posted February 13, 2011 Dont know about cams/VVT, but as far as Im aware its there for emissions rather than power.Is it still on standard suspension? Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 13, 2011 Author Report Share Posted February 13, 2011 Dont know about cams/VVT, but as far as Im aware its there for emissions rather than power.Is it still on standard suspension?It definitely helps the engine maintain the power higher up the rev range. I've seen graphs with/without VVT and it definitely helps.With regards to chassis mods:AP coiloversUprated A.R.BG60 brakesALl brand new geniune VW bushesBridgestone Pilots all roundIt really is a sorted little car, just needs a bit more OOOMPH! LolAlthough, i'm travelling 150 miles to work, so i need to maintain reliability/economy, so that rules out bodies/carbs. Quote Link to comment Share on other sites More sharing options...
karl Posted February 13, 2011 Report Share Posted February 13, 2011 (edited) I dont know if i am correct on this but i also thought VVT also helped with torque output at low revs . Edited February 13, 2011 by karl Quote Link to comment Share on other sites More sharing options...
treblet Posted February 13, 2011 Report Share Posted February 13, 2011 Have you actually had it remapped after fitting all these parts?If it's not been mapped that's where I'd start, you'll probably gain a bit more power, smoother power delivery and better economy for it too. Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 14, 2011 Author Report Share Posted February 14, 2011 Have you actually had it remapped after fitting all these parts?If it's not been mapped that's where I'd start, you'll probably gain a bit more power, smoother power delivery and better economy for it too.Personally i dont see the point in mapping it yet. There isnt really any need to change fueling when all ive done is made it breathe better. The ECU parameters will easily cope with what's been done.I feel that when you introduce cams, it is then the fueling needs to be altered.Why waste like £300-£400 at this stage of tune, just to have it done again if i do some real engine work. I.e. headwork/cams Quote Link to comment Share on other sites More sharing options...
CasperGTI Posted February 14, 2011 Report Share Posted February 14, 2011 I dont agree at all with that first bit, if thats what you think remap does.Last bit i do agree with, if you plan to do more then do it and then get it done.Theres at least 1/3 more gain in the mods you have done if you tie them together, you will be hugely surprised how better the car drives once its been done.It definitely helps the engine maintain the power higher up the rev range. I've seen graphs with/without VVT and it definitely helps.Its not VVT as you think, infact on the lupo it really does not do a great deal. Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 15, 2011 Author Report Share Posted February 15, 2011 I dont agree at all with that first bit, if thats what you think remap does.Last bit i do agree with, if you plan to do more then do it and then get it done.Theres at least 1/3 more gain in the mods you have done if you tie them together, you will be hugely surprised how better the car drives once its been done.Its not VVT as you think, infact on the lupo it really does not do a great deal.I'm guessing that at high revs the vvt advances the timing, helping to maintain a flat curve higher up in the revs.I'm definitely not getting it mapped yet. I would rather spend the £300 on a set of cams, which even without a remap would probably see more gains than a remap at this early stage.To be honest, there were no massive gains from anything i've done, so that 1/3 more really wouldn be noticeable at all, although, like you say, they'd probably get more torque and a flatter curve. Quote Link to comment Share on other sites More sharing options...
Mitchell Posted February 15, 2011 Report Share Posted February 15, 2011 i'm over 170 bhp now on tb's Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted February 16, 2011 Author Report Share Posted February 16, 2011 i'm over 170 bhp now on tb'sDid that involve heawork/cams as well as the itb's?Dont suppose you know what power it was on standard injection, or did you do it all at once? Quote Link to comment Share on other sites More sharing options...
Mitchell Posted February 16, 2011 Report Share Posted February 16, 2011 i'm running gti block with a 1400 afh polo head schrick cams omex management Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.