4xx turbo lump

jamiemcarthur · Post by **jamiemcarthur** » Mon Sep 15, 2003 9:49 am

right ive searched through all the topics and am yet to find a straight answer to the boost thingy, i see someone has 1.1 bar out of the engine, i know its limmited to 13/14psi but can be over come by chipping, but can i just ask why is that limmiter there. what is it protecting. so i know what i can up the boost to but i want to make sure what the limmiter is protecting is uprated (if anything). cheers guys oh and whats the highest bhp anyone has on here with the turbo lump and what modds to get to the fugure. cheers agian guy j.

Jamo · Post by **Jamo** » Mon Sep 15, 2003 10:55 am

BHP is not everything, it's all about torque mate. I would advise get a better understanding of how turbo car work before you consider modding it, there's plenty of websites and information on this forum for your help. To cut a long story short, and make it simple to understand. imagine a bottle with a cork in it with fizzy drink in it. (standard engine) then increase the pressure of the gas in the fizzy drink. what happens? more pressue is applied to the underside of the cork and the cork goes pop.. (Normally in the form of blown head gasket) This is one of the basic principles of what happens when you increase boost pressure (hence the need for uprated head bolts in certain applications.) Another thing is when something is placed under more pressure, heat is generated (from the turbo), this can have a disaterious effect in that the air is hot enough to ignite fuel in the engine without the spark plug (known as detonation, pinking etc). This is why larger turbo compressors are used as they produce less heat at comparitive boost pressure levels. Edited by: <A HREF=http://pub32.ezboard.com/bvolvo480.show ... oDodger</A> <IMG SRC="http://www.photobucket.com/albums/0603/ ... 8d5b65.jpg" BORDER=0> at: 9/15/03 12:57 pm

jamiemcarthur · Post by **jamiemcarthur** » Mon Sep 15, 2003 1:19 pm

im sorry i understand its not about power at all its all about torquer i know ive spent the past 6 month researching this engine and ive always came up against a brick wall.

Jamo · Post by **Jamo** » Mon Sep 15, 2003 1:26 pm

LOL sorry didnt mean it to sound like that. I meant before you buy anything, really try and understand what you buying and why. If you aiming for a specific BHP level or just want a general perfomance improvement. I did both but as you'll find out down the way, there other things that need doing on top that's not forseen. It's trial and error (expsenive mind). So lets start out, with what your looking for performance wise , BHP wise, money wise then we take it from there mate.

jamiemcarthur · Post by **jamiemcarthur** » Mon Sep 15, 2003 8:08 pm

right you lot will prob hate this but its only the engine im wanting not the car, as im dropping it into my renault laguna, i know i can get around 200bhp as std from it with chipping and porting and flowing and upping the boost to the 13/14psi limmit. but id like to know what you lot have done to get your bhp/torque levels. ive heard the engine is pish as its weak and hates high boost i want to prove them all wrong as they all said lagunas are pish and i proved them wrong about that too. so help me prove them wrong.<img src=http://www.ezboard.com/intl/aenglish/im ... /happy.gif ALT=":D">

Jamo · Post by **Jamo** » Mon Sep 15, 2003 9:34 pm

If i'm honest with you, i'd put a Renault 5 1.4 Turbo lump in it. Never mind the size, it's a simple engine and 200 BHP is a breeze to get out of it (Carb and easier to setup than the 1.7 Turbo lump.) It will fit no problems, as i known the companies that will do this for 1K plus you supply the engine (been put into Clio's) Renault 16v engine sucks. No torque whats so ever!!!!! I had one as a company car, and it sucks

Jamo · Post by **Jamo** » Mon Sep 15, 2003 9:47 pm

Oh and the standard boost limit is 13 psi, standard ignition will drop boost over that, although the boost cut can easy bypassed with an Manual Boost Controller from DBS. to get the correct ignition timing with higher boost cut limits your looking at a Rica chip available via Bakke or Stargate for about 200 euros. Bakke can supply with new Ecu if you haven't got the fabled dual layered ecu (took me 1 year to get my hands on one! yippee).

jamiemcarthur · Post by **jamiemcarthur** » Mon Sep 15, 2003 9:54 pm

no the 1.4gtt lump is far too wee for the heavy laguna, your talking 1400kg to pull, and i currently have a 2ltr and it would be soul destroying to go to a 1.4 no matter the power out put. im making a big enough jump down to the 1.7, ive hear storries about it being bad, etc, im planning on getting a bleed valve to up the boost is this also the "Manual Boost Controller" your on about or something else too. im looking to get it chipped anyway to release more power, and have it all set up right. just tell me how to get the most out of the engine and at what cost. cheers j.

Jamo · Post by **Jamo** » Mon Sep 15, 2003 10:05 pm

Bleed Valve system doesn't work on the 480 very well by standard Here's why for the record. Because Boost pressure is controlled by the ECU and the Boost pressure soleniod, Volvo put a 4 psi actuator on the car. so when the ecu detects its boost limit it redirects boost pressure to the actuator which opens up straight away as its so weak.) When boost pressure is lower than the ecu limit (7 psi), the boost pressure soleniod redirects the boost pressure back into the air stream. If you put a bleed valve system on the car you MUST uprate the actuator or else you can't get above 4psi (althoguh theres a trick round it (Sparkie strikes again))The Manual Boost Controller works on the same principle in that that it bypasses the soleniod and only opens up when boost pressure hits the limit you set it to and then the boost pressure will be directed the actuator which will open instantly. the only thing with the MBC you cant adjust it in car, but for Â£40 it's a great device (available from DBS). Your better of talking to DBS, but i'm, warning you this will cost alot in comparision to other cars as parts aren't available of the shelf. The most we've had out the cars is 210-230 BHP Vin has a T3 Turbo and 1.1 ignition chp (which is no longer available to buy). which gets 200-240 bhp. Edited by: <A HREF=http://pub32.ezboard.com/bvolvo480.show ... oDodger</A> <IMG SRC="http://www.photobucket.com/albums/0603/ ... 8d5b65.jpg" BORDER=0> at: 9/17/03 1:49 am

jamiemcarthur · Post by **jamiemcarthur** » Mon Sep 15, 2003 10:35 pm

hmmm deffo sounds good to me, and i know m8 theres hardly any parts for it, but the thing im interested in is my renault lump is only 115 bhp where as the turbo lump is 120 and has more torque and is much more tunable than my lump (thats why i have nitrous the now) so im not looking for super fast as lets face it the laguna aint no light motah and will never be a rocket. just looking for something with a bit more oomph oh and something that has a nice dump valve ;O) this mbc thing sounds very goot as an blead valve was gonna cost me 50 and then an uprated actuator so this is not bad at all and you can set it to what ever limmit you want? what would likly be the first thing to go pop if i was to up the boost to much? head gasket?

Sparkie · Post by **Sparkie** » Wed Sep 17, 2003 12:06 am

not neccessarily<img src=http://www.ezboard.com/intl/aenglish/im ... /laugh.gif ALT=":lol">

jamiemcarthur · Post by **jamiemcarthur** » Wed Sep 17, 2003 12:09 am

???

Jamo · Post by **Jamo** » Wed Sep 17, 2003 7:04 am

Boys and Girls meet, Sparkie is the Renault Turbo Owners Club Turbo wizard, and if theres a trick, bodge install trick turbo question you have this man has the answer. Just don't ask him what happened to his R5 over the last month <img src=http://www.ezboard.com/intl/aenglish/im ... /laugh.gif ALT=":lol">

lee · Post by **lee** » Fri Sep 19, 2003 5:51 pm

I will put my 2 pence worth in. I won't say how much my bleed valve was but where quoted you Â£50 were fucking you up the ass. The main problem you will have but can be avoided is the clutch. I ran mine at 18psi sparkie is my witness and the only reason i backed off was because of the clutch. But if you replace the clutch you shouldn't have any problems. Also the R5 turbo lump is a good idea in theory but because of the weight of the laguna it would spend more time in the garage than on the road. At 4psi i can keep up with an R5 Turbo. As soon as i have a new clutch i will be putting mine on the rollers even though its standard. Just to see what it is. I will then have it on the rollers again after i have played about with it. That way i will know what i have gained from the mods. Plus i have to have a rolling road read out for my insurers. Edited by: <A HREF=http://pub32.ezboard.com/bvolvo480.show ... 480>lee</A> at: 9/19/03 7:52 pm

jamiemcarthur · Post by **jamiemcarthur** » Fri Sep 19, 2003 6:41 pm

u gettgin a sports clutch or one fae a renault 5 turbo or something.

Volvo 480 Club Europe

4xx turbo lump

4xx turbo lump

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