And you're most certainly not on an equal length twin-scroll manifold mounted to a vr6.
they both spool the same as there both on 12cm t3 houseings , but i have to agree the hx40 coldside is nice ,but at 30psi the hx35 seems to die off , were the hx40 pulled clean , yet both pull fine to the limiter at 20/25psi , defo a nice upgrade
pics off the head/gasket
Last edited by adaptorman; 10-27-2010 at 04:04 PM.
My buddy was talking to someone who was running a 12cm hx35 on his 12v @ 17psi and put down 420whp. So, we're a bit concerned as I have no idea what spring is in my wg and my engine cannot handle that much power.
Thinking of doing a wg pressure test to see where we're at so that might be the only hold up to getting this on the road today.
anyways, it's all put together and running like a champ. WG is set to 12psi, which is a good spot for me right now. pulls mean, but my reference is a supercharger, so... feels freaking amazing though, I'm already so in love. I'll get some vids up as soon as i can, but you guys all know the drill...
I plan to hit the rollers next weekend and see how it shakes down.
So I'm interested, does anyone have any data on how a VGT would work on a 1.8T? Also, has anyone put any serious miles on one to see how the vanes would hold up on over the long run on a gasoline engine. I figure with a good W/M system, you can keep the EGT's around 1500F under boost. Maybe it's one of these too good to be true things, but at $250-600 for a 400+ WHP turbo that could hit full boost at 3000 RPM, I'd seriously consider trying one out.
The van design ona holset is nothing like a garrett, as it has less moving parts and seems to be a better design. All the tsb's on the 6.7 cummins was due to ****ty programming/software by dodge that caused soot buildup and failure of thevanes.
Around page 5 or 6 on this thread there is a link to someone using a vgt on a 1.8t in another forum. I also posted a link to a user named aero on another forum using one of his dsm. I think he was seeing positive manifold pressure well below 3000 rpm and 22 psi just over 4000 rpm.
Adaptorman post up some pics of that gt40, i remember seeing that and was like wtf. Still pretty cool you took the initiative to do that
ive never had this happern before but was also about to blow over 2/5 clyinders, can only assume heat/air as it was blue , my issuise is u can buy mild steel head spacers and stainless head spacers ive never had a stainless one go , yet companys say they have heat issuises with stainless , ill not be useing a sh..te mild one again not recomended on high boosting vr engines
Adaptorman your a sick bastard....enough said. Props to you for having the balls to cut up a perfectly good turbo and make it how you want.
Patt you should look up adaptorman's build thread on his truck. His fab work, ingenuity and everything else is no joke. I think he is on engine #5 due to insistance on running 30psi on stock engines
I took my 16v out again today,unfortunately when the turbo starts going on full boil its leaning out. I really need to stop being lazy and install the dsm 450's so I can rip on it.
pmsl , was only a bit of fun idea tbh dave, but like most things seemed to work pritty well , ps dave little tip if ur runing learn on ur boost what fuel reg are you runing i.e 3bar, then add a 4bar , will give you extra fuel , (ie i run stock 3bar 560cc and fitted a 4 bar fuel reg which theres enoegh fuel for 640cc keeping afr at 11.5afr at 30psi ,or modify some injectors to suite,,, 4clyinder engines are more stable then vr6 lumps
ps if u fancy re welding it few remains ur welcome
Last edited by adaptorman; 10-31-2010 at 07:11 AM.
long as its flat/holes algine and use copper sealer you wount have a problem , as i removed my homemade 1/5mm spacer to drop compression to 2.5mm mild steel and it blow the spacer , cheep steels that companys sell , so ill refit my homemade one i know it holds
19lb erm there are a bit small , check which one u have fitted , or useing a riseing rate fuel reg , i have one kicking around in the garage ,u will find by removeing the vacum pipe ull have a solid 3bar , orpiped in around 2.5bar on idiol , if thats what u have fitted , bang a bigger one in ,, cheeper option ,,
I have the bigger injectors just never installed them. I'm using digifant 1 on my car that I'm tuning myself, and since I've never tuned efi I figured starting with the stock injectors would be better, then install the 450cc injectors.
I was going to install them today but discovered my new/used/recently rebuilt alternator is junk, so tuning a car with crappy voltage is a bad idea.
Adaptorman do you have to re torque the head with a spacer after a few heat cycles?
pics of my 12cm hx35 converted hx40 coldside
first remove hx35 houseing and compressor wheel
pic of both hx35/hx40 compressor houseings and wheels
then i slightly machinced inner lip so the hx40 compressor wheel will fit
fits a treat
heres a pic of a hx40 houseing with a hx35 compressor to show the size differce
notice differnce the hx35 8 blade compressor wheel on the top of the7 blade hx40 , differnert angle of the finsyet suposely flow better
just rewelded the head and strip clyinder head and re skim it ,
Last edited by adaptorman; 11-01-2010 at 06:21 PM.