Mk3highline 287 Posted January 20, 2015 Report Share Posted January 20, 2015 c00k and D11PS 2 Link to post Share on other sites
Mk3highline 287 Posted January 21, 2015 Author Report Share Posted January 21, 2015 Well first got the car in2011 drove it for few months an parked it up as had a civic aero deck Vti that I had bult engine on and had a 2003 Octavia VRS standardDid intend to keep the golf parked up and slowly restore it Not that it was in bad nick but get rid of small bits of rust etc Since then I've moved stripped the civic sold the octavia got another civic ek4 vtis and rebuilt the b18 12.7-1 c/r type r head etc was good till a water pipe split so warped block and it got left strippedI ran out of patience roving a standard vr so came the 24vEvan now I can't believe the difference in the gain in torqueI like quick revving engines so got a 4.4kg flywheel from ttv racing a British firmIt made 229bhp 204tlbs torque with a cam sensor faultI said to vince are you sure that's right lolThat's with more pinging than a normal tune Then I had 3 cars bummed me, damage is not too bad but it's the knowingGuess I will just have tomake if quicker and stop worrying about cosmetics nowLittle history Zak daveyboy 1 Link to post Share on other sites
DanChave 98 Posted January 21, 2015 Report Share Posted January 21, 2015 Looks like an interesting project! Are you using the standard ecu with a map or standalone management? I'd be interested on how the loom was wired into the fusebox Link to post Share on other sites
Mk3highline 287 Posted January 21, 2015 Author Report Share Posted January 21, 2015 Standard vr6 12v obd2 ecu standard map Just had to change over the injector plugs the plug for the alternatorI think that's it off top of my headIm colour blind so hate wiring too many colours make my eyes go funny lol Link to post Share on other sites
DanChave 98 Posted January 21, 2015 Report Share Posted January 21, 2015 Haha, ah that's interesting! And this is the 4mo 2.8 24v, using the O2a vr6 box right? Did you have to modify the front mount like with the 3.2 R32 conversion? Link to post Share on other sites
Mk3highline 287 Posted January 22, 2015 Author Report Share Posted January 22, 2015 Vr6 gearbox and standard mounts just a little spacer on the front mounting bracket , I was too stressed that week to take pics as did heater matrix at same time Also I didn't have to trim the cooling fan bracket or anything els it bolted all back together same as beforeHell of a lot easyer than what I thought just took time as it was the first time I had worked on a mk3 golf Next time it would be hell of a lot quickerSo far I've gained 30ft lbs torque for a week away from home lol as made all money back plus some selling old bits c00k 1 Link to post Share on other sites
DanChave 98 Posted January 22, 2015 Report Share Posted January 22, 2015 Hmmm, I wonder if the engine will run with an obd1 ecu........ you got me thinking now lol! Link to post Share on other sites
Mk3highline 287 Posted January 22, 2015 Author Report Share Posted January 22, 2015 I think it MIGHT but what you need to do first is see if the cam sensor phase wheel will fit on the 24v aue cam sprocket so if you can try that then I'm 99% sure it will work but I have not tried it.Saying that if you hold out a few weeks I will have an answer as to how well it can run on obd2 vr6 12v management I have a new phase wheel if you need to try it Link to post Share on other sites
science 7 Posted January 22, 2015 Report Share Posted January 22, 2015 Great thread! Subscribed. Link to post Share on other sites
DanChave 98 Posted January 22, 2015 Report Share Posted January 22, 2015 I look forward to seeing how you get on To be fair, If I'm changing the engine AGAIN then it's not that much work to change the loom from OBD1 to OBD2! Link to post Share on other sites
Mk3highline 287 Posted January 22, 2015 Author Report Share Posted January 22, 2015 depends what you want to do with the car mateDoing it the way I've done its easyer if your no good with wiring etc and simplicity If I was better with wiring and had more time and money I'd go for the later 24v engine which has vvt on both cams has coil on plug more advanced ecu wideband also if you swap the abs over (and other bits) from the mk4 you can have traction control and maybe launch control. Also I believe with a good exhaust manifold you can have nice gains throughout the Rev range specially turbo with vvt Link to post Share on other sites
DanChave 98 Posted January 23, 2015 Report Share Posted January 23, 2015 Yeah that does sound a lot better I like the sound of a 24v on 12v management, just purely because of the gains you get and how simple it seems. If I was to got all out I think I'd rather fit an r32 or 20vt BAM engine Link to post Share on other sites
Mk3highline 287 Posted January 23, 2015 Author Report Share Posted January 23, 2015 I considered 3.2 but I wanted to keep the throttle cable not too keen on DBW throttle plus the aue is lot more simple All the 24v 2.8 and 3.2 have the same cam profiles (iirc) and you can get similar torque with the 2.8 with the money you save on buying the engine You can use the r32 head on the 2.8 blockAnd many have said th 2.8 is more reliable and think it's got the stronger block Link to post Share on other sites
DanChave 98 Posted January 23, 2015 Report Share Posted January 23, 2015 Ah yeah, that all makes sense! So is the 24v cable already or do you use the 12v TB? Link to post Share on other sites
Mk3highline 287 Posted January 23, 2015 Author Report Share Posted January 23, 2015 My obd2 12v throttle fitted straight on but you need the shorter bolts from the 24v throttle body You will also need to make a new bracket for the throttle cable, I'm not happy how I've done it with it being above the exhaust manifold heat shield and below the inlet plenum so can't evan adjust it with out taking inlet off PS Also I had a full wiring loom and ecu for the AUE but ecu was furked so gave the 12v ago Link to post Share on other sites
DanChave 98 Posted January 23, 2015 Report Share Posted January 23, 2015 OK cool, that gives me a bit more of an idea of what's involved Link to post Share on other sites
c00k 435 Posted January 24, 2015 Report Share Posted January 24, 2015 (edited) I don't think it would work well with OBD1 as the throttle body are totally different and have a different bolt patten, so you would need to modified the 24v manifold to fit OBD1 TB, (if OBD2 is a straight fit) Also OBD1 use ISV, OBD2 12v and 24v don't use ISV. 12v OBD2 is much much closer to the early 24v, than OBD1. my 2 cents anyway. Done a good job on engine, got me thinking about a side project for another car I have I already have a spare OBD2 12v for it already, but it not fitted yet, so might change block and head to 24v Edited January 24, 2015 by c00k Link to post Share on other sites
Mk3highline 287 Posted January 24, 2015 Author Report Share Posted January 24, 2015 Id say do it once Ive good this cam sensor problem fixed All that extra torque from a standard engine which works out cheaper than doing cams and head work And it's better on fuel economy Link to post Share on other sites
DanChave 98 Posted January 24, 2015 Report Share Posted January 24, 2015 I really like the idea as well! Maybe I'll start keeping an eye out for an OBD2 conversion, as I was going to convert my 2.9 to OBD2 in the future! I didn't realise the OBD2's didn't have an ISV though! More knowledge in the bank Link to post Share on other sites
c00k 435 Posted January 25, 2015 Report Share Posted January 25, 2015 (edited) Yeah it's all controlled electronically by the throttle body and sensors, there's 2 ramps inside the OBD2 TB to help with idling aswell. Also why you want to keep OBD2 TB nice and clean and not clogged up with oil and crap.The two line on the top of the TB are water cooling line, not vacuum line like OBD1. I have removed them on my car as there not really needed.No secondary air injection either. Only vacuum need on OBD2 is for the brake servo. Edited January 25, 2015 by c00k Link to post Share on other sites
Mk3highline 287 Posted January 25, 2015 Author Report Share Posted January 25, 2015 Not an Update . Just a moan as more I'm pissed off as got the new ecu just sat here and can't do anything till during the week to get the immobilser sorted hate waiting for stupid things I can't do myself Link to post Share on other sites
Mk3highline 287 Posted January 29, 2015 Author Report Share Posted January 29, 2015 (edited) Got it working like . the noise at 7k is ok drives nice and smooth too Edited January 29, 2015 by Mk3highline Link to post Share on other sites
Mk3highline 287 Posted January 30, 2015 Author Report Share Posted January 30, 2015 Got rid of the fault but now got a maf code Been to stealth and back and fuel needle hardly moved Bealieboy 1 Link to post Share on other sites
science 7 Posted January 30, 2015 Report Share Posted January 30, 2015 Are 12v and 24v MAFs the same? Link to post Share on other sites
Mk3highline 287 Posted January 30, 2015 Author Report Share Posted January 30, 2015 (edited) No the sensor bit is different The housing seems the same size thoughI got a 24v maf with the engine it has 5pins and it works differently to the 12v one I thinksI'm using the 12v maf at the moment Edited January 30, 2015 by Mk3highline Link to post Share on other sites
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