dump valve

[philthepill_389]

can any one help i have a 1.7 td cavvy lump in my nova and have tried to fit a dump valve but cant get it to work can any one help me out thanks

phil:thumb:

[Philsutton]

dump valves are gay to start with but fitting one to a diesel will increase the gayness rating som more. It can be done but they dont really work very well.

[hendrix]

vrrrrrrrrrrrrrrrrrrrrroooooooooooooooooooooooooooo mmmmm...tsh!

[rdanny]

can any one help i have a 1.7 td cavvy lump in my nova and have tried to fit a dump valve but cant get it to work can any one help me out thanks

phil:thumb:

try a cavweb forum or try vxon with it being a cav engine as far as i know the 1.7td is a izuzu lump and from what i hear they last for ever and ever..........
......and ever

[Asa-James]

isuzu are bulltproof, but slow as feck (my old fella has one)

and dump valves??? whats the point? is there a bigger way to say " i think my car is dead fast and sporty" when it only revs to 4500rpm?

dont bother, and buy a proper car, not a damn tractor





rant over!

[JSeymour]

From what ive heard there pretty fast as diesels go.

[Asa-James]

not really, dog slow in my eyes

fast diesels, try the alfa 2.4 jtd 20v turbo, easily the second fastest 156 after the gta, and even the alfa 1.9 jtd is a silly quick engine.

[JSeymour]

yes but this is in a nova!! power to weight ratio. diesels are very touqey aswel.

ive seen a 130bhp d. you cant tell me that would be slow? or is it because its a dieslel?

[General Baxter]

all a dump valve will do on a TD is, loose all the boost, making the car slower lol

[rdanny]

the 1.7 td has more power than a diesel 2.0li vectra and nearly as much as a 2.0 dti vectra there about 125 bhp. i had all the specs a while back you will get them on vxon somewere

it wont make it any faster but it'll sound cool as fu3k at the lights and make chavs think twice about racing you in there k & n kitted corsa's. (stickers lol)

[Driver]

not read thread so sorry if this has allready bin said but ...

DV dont work on dervs you need a special one that is in fact an elctronic one, and no its not a sabre ****ty one

try derv docter they will fit you one for about ?300 thats wotn loose power

[philthepill_389]

i tell you one thing i have a gsi nova modded minter and the 1.7 td still pulles on at 125 this thing aint slow puts a few 2ltr to shame and it dont rev to 4500 nova sr ish haha u get a prova nova m8 thanks for info on dump valve just thought it would of turned a few heads but i guess the choking black smoke dose that haha

[SUP4NOV4]

If Its Good For A 306 Why Not A Nova

[GTE TURBZ]

i tell you one thing i have a gsi nova modded minter and the 1.7 td still pulles on at 125 this thing aint slow puts a few 2ltr to shame and it dont rev to 4500 nova sr ish haha u get a prova nova m8 thanks for info on dump valve just thought it would of turned a few heads but i guess the choking black smoke dose that haha

i've got a TDS astra, and it is rapid, and comfortable to drive, even comes with 15" with 195 width tyres, you can through it around corner and it holds the road, if you know how to drive it, its alway ready on the turbo, and in my experience even at 90 its pulling, now how can that be crap, its even betther than the 1.6 petrol equivalent i used to have.

[womble sri]

try a cavweb forum or try vxon with it being a cav engine as far as i know the 1.7td is a izuzu lump and from what i hear they last for ever and ever..........
......and ever

second that my old man had an astra mk3 estate with one in and it had done star trek miles. he bought a passat ans gave it to me while the nova was OTR and i drove it too kill it but it didnt die! then my dad gave it my grandad (which i wasnt aware of otherwise i would of treated it properly) and its still goind!!!!!!!!!!lol :eek:

[Asa-James]

it dont rev to 4500 nova sr ish haha u get a prova nova m8

without wishing to turn this into an arguament, what is a prova nova?

if you mean proper nova, then please, define for me, what is a proper nova?

big wings? kingdom bodykit? dump valve?

my 1300 saloon might not be the fastest, best handling, tidiest or best looking nova out there, but it's a nova all the same, and still puts a smile on my face when i wipe the floor with silly chavvy saxo's



and for the record, your not my mate (or m8, whatever)

[philthepill_389]

the nova of all novas a GSI

sorry about the spelling

but dont put a reply in slating a car u have never seen or know about i was asking for help with a dump valve not how the car runs or goes and just for your infomation your car must be very slow because the good old 1.7 td would leave you in its black smoke

and i know am not your mate !!!!!! ohh and chavvy saxo i think you will find we all on nova load drive the original chavvy hot hatch


and just to show u the nova of all novas here is my mint clean example gsi
sorry if any spelling mistakes
http://img250.imageshack.us/img250/4329/nova4lt0.jpg

[Jack]

it wont make it any faster but it'll sound cool as fu3k at the lights and make chavs think twice about racing you in there k & n kitted corsa's. (stickers lol)
No. No it won't. They'll know its a derv because they'll hear it, and everyone else will just think you're a tit. And as said, a DV on a derv is a pain to get right, and isn't gaining you any extra horsepower.

I'm on the lookout to ditch my Forge DTA for a standard jobbie. It'll still make a noise due to the air filter but not as loud lol

[philthepill_389]

i never wanted it for extra bhp its never going to be a 11 second drag car or even a 15 lol but i just wanted to have the noise and it dont sound lick a dirty d just the black gives it a way thanks for all your help on a dump valve i guess it just was not ment to be thanks

[SuperNova!]

I think putting a dv on a diesel cav would be almost as bad as getting a redline sunvisor and a max power sticker on the back.

Idd prefer the chatter to any bov anyway.

Dave

[Philsutton]

lol ive driven many many 1.7td vauxhalls, they are so slow its unreal. There is no sense of speed at all. They chug along in every gear the same, thats what they do. Plus you cant tell when the turbo has spooled up because nothing happens when it does lmfao

[Jack]

Idd prefer the chatter to any bov anyway
I wouldn't, the "wastegate" chatter is the noise of the turbo being wrecked! :cry:

If you want a decent noise, get anti lag; but don't expect it to work on a derv, or for your turbo to last any more than 1000 miles tops lol

[Philsutton]

ive got a nice turbo breaking noise lol plus anti lag is a turbo mashing sound just louder and more damage, much more lol

[Mike]

poeple may mistake it for a LET.....








until they choke on the toxic plume of smoke :D lol

[Jack]

anti lag is a turbo mashing sound just louder and more damage, much more lol
Yep, the ST205 WRC's come with anti lag from the factory, but its disconnected.... a few owners have reconnected it, but quickly take it back off when it eats a turbo per month lol

[SuperNova!]

Whether chatter/compressor wheel stall damages the turbo is very debatable I agree that it will decrease the turbos life but in weeks rather than months, ive been running fine without a bov for 6 months running 1.1 bar with no turbo problems.


Agreed though if I seen a cav 1.7td with a bov I wouldnt be able to stop laughing all day.lol


Dave

[Mike]

Anti lag, pmsl! A lad by me has got an Impreza Turbo, last i heard he had anti lag fitted, and that was the last i saw of his Impreza :D lol

it now sits on his drive minus most of its turbo setup :D lol

[Philsutton]

the lets come standard with that "chatter" noise so i doubt very much that they would let it out if it only lasted for a few weeks. They wouldnt last as long at about 2 bar though lol

[slammed saloon]

lol ive driven many many 1.7td vauxhalls, they are so slow its unreal. There is no sense of speed at all. They chug along in every gear the same, thats what they do. Plus you cant tell when the turbo has spooled up because nothing happens when it does lmfao
yea so what you do there phil is take the diaphragm cap off the fuel pump and turn it round quarter of a turn, then turn the boost up and fit an intercooler. every diesel nova i have seen has been rather impressive. ive been sat in the passenger seat of a standard one that wiped the floor with a gte. each to there own, some want derv power some want petrol beasts let each get on with what they wish i say. :thumb:
BG

[philthepill_389]

slammed saloon knows the score thats what i have done also got a filter and a straight throw ss system on. it a little beast and it never stops boosting haha just doing these mods really make it blow black and alot of it

[slammed saloon]

just doing these mods really make it blow black and alot of it
take it you dont have an intercooler then fella because the reason a car will produce mad amounts of diesel smoke is because the engine is getting more fuel than air, if you have a bigger intercooler put on you get more air and fuel so ull get more power but it wnt soot up everyone for 8miles behind you lol we get thisd problem all the time at work from customers who have had there car chiipped 'my car is failing the mot smoke test etc' never get this complaint from those who have had a bigger high flow ic fitted ;)
BG:thumb:

[philthepill_389]

nice one al get one sorted asap could the ic be front mounted and whats the best intercooler thanks

[slammed saloon]

yea course it could be front mounted, i dont know about type to use but what about maybe a diesel frontera? or something similar like a 1.7 diesel astra or astra van etc thats where i would look at scrappys
BG :thumb:

[SuperNova!]

Sorry mate but Ive got to butt in,

Firstly there is no need for a intercooler unless you are running more than 7psi because the losses outweigh the advantages.

In one sense an intercooler does give more air to the engine but only very slightly more and the way it does this is to cool the charge down making the air slightly more dense so more air/fuel can be packed into each cylinder but it it only very marginal, an intercoolers main purpose is to cool the charge to allow safer running in high boost applications where the air has been heated up highly due to being compressed more.

I dont know much about these diesel engines but I think they already have intercoolers as standard? messing around with the standard one could make much more trouble, the diameter of the pipes going to/from the intercooler and the size of the cooler are major factors larger intercoolers are not always better.

If he was to fit a larger intercooler he would loose boost because there is a pressure drop from one end to the other of the intercooler depending on the volume of air it can hold and would also result in more lag.

Why dont you try turning the boost up?

Dave

[Philsutton]

I dont know much about these diesel engines but I think they already have intercoolers as standard?

the 1.7td do have ones as standard, about the same size as the ones on the c20let lmfao.

Also fitting bigger intercoolers an bigger pipe work doesnt really make it lag like a bitch. It will have an effect but not going to noticable. Ive got a stupid gay 15-20 litre bad boy on mine lol and it still gets up to boost about the same as the standard turbo did and that is with a bigger turbo as well.

[SuperNova!]

True but if the standard turbo was used to fill a large intercooler it would take more time to fill up the space increasing the lag it would also put more strain on the turbo to create the boost.

I say turn the boost up anyway lol, Take the pipe off the actuator lmao

[L14MNP]

I used to have an Isuzu engined 17TDi MK3 DisAstra and she was great lol

Quick enough to school my mates 115 TDi Bora on occasion (yeah he was on 18s then 19s though) Was awesome on economy also! Never turned up the boost / modded the fuel pump though :roll: Wish I had, never got around to it.

She died one day on the A19, alt. belt came off (guess the tensioner was shagged) car cut out and the temp. sky rocketed and it overheated lol I waited for her to cool down, filled up with water, then attempted to drive home - about 15 miles. It got about 4/5 miles with the temp gauge flying up and me having the heater on full blast in the middle of summer then it just gave up, It blew a hose on the back of the head :(
So got a new pipe for it and tried starting it again (after towing home) but it was shagged, I thought maybe cyl. head may be warped, and obviously it needed a head gasket, but it wouldn't even start when we tried towing it for 2 miles :( Just turned over very lazily, think I ended up with oval pistons lol
R.I.P L565 RFG - dead before your time 216000 miles lol I wanted another 200K!

[vallanc3]

think he said hes alredy turned the boost up and thats why it throws black clouds of smoke out...get a 3.2 trooper turbo on it and have some real fun

[L14MNP]

think he said hes alredy turned the boost up and thats why it throws black clouds of smoke out...get a 3.2 trooper turbo on it and have some real fun

Yeah, I heard they fit also! Bet they fly then lol (for an old skool derv that is) :thumb:

I want another one, got a P plate 18TD Escort now :(

[philthepill_389]

i have played with fuel pump thats y it blowes black cant find out how to turn boost up any 1 know its a lil rocket just want it to boost harder thanks

[Sloth]

apparently there is an ajuster on the pump, not sure tho, check diesel tuners.com (i think)

[Paul]

bleed valve at a guess?

[SuperNova!]

If you want to turn the boost up realy crudly and at 0 cost, drill a small hole in the pipe going from the compressor discharge nipple on the turbo to actuator it will increase the boost but you need to be very careful not to drill too big a hole and blow it up.