Engine strength

huskyracer · Post by **huskyracer** » Mon Sep 19, 2005 5:51 pm

Hello everyone!
I am the owner of a 340 with a 440 turbo engine. I need some info on the strength of the b18ft engine, mine is running at 1 bar, with a t3 turbo, mildly ported head and aftermarket management. I am currently getting 220 bhp and 230 lbs/ft torque, What I want to know, is how far in terms of boost pressure/power out put, can you take one of these engines before they fall apart? I have examined the guts of it, and personaly I feel tthat the rods will be the first thing to let go, but I dont want to find out by destruction testing! any info would be appreciated
Thanks
Iain

martinholmesuk · Post by **martinholmesuk** » Mon Sep 19, 2005 6:03 pm

Are you the power engineering guy?

huskyracer · Post by **huskyracer** » Mon Sep 19, 2005 6:06 pm

er, yes..

Murf · Post by **Murf** » Mon Sep 19, 2005 6:38 pm

Your reputation preceeds you!

http://volvo480.northernscum.org.uk/for ... php?t=7248

richard is getting 250 bhp, as far as i know he had standard engine internals with a bigger turbo, V6 injectors and other stuff.

what are you using, clutch wise, and is it handling the power?

huskyracer · Post by **huskyracer** » Mon Sep 19, 2005 6:54 pm

I am using a clutch built by techniclutch on a later 220 mm flywheel, nothing too trick, just uprated cover plate and stronger springs in the centre plate. Had to go this way as I have to have a centre plate with 340 spline size, when I first built the car I used a 440 turbo(200mm) cover plate with a 340 std centre plate which lasted quite well (up to about 180 bhp) I recon 250 bhp is ok on stock internals, but I think much more is going to bend/ break the conrods as there very spindly around the small end, I have run 1.2 bar briefly with no problems, I should think that was making around the 240 mark but I dont want to go above this untill I know more about the limitations of the stock setup

Murf · Post by **Murf** » Mon Sep 19, 2005 7:00 pm

are the rods from the 400 series diesel engine any use? if they are the same size as the petrol engine they will be stronger

tobi480turbo · Post by **tobi480turbo** » Mon Sep 19, 2005 8:36 pm

Hi,

as Martin said ~250Hp should be more or less the limit of the stock setup as infact of thermal and mechanical stress.
IÂ´m runnig a B20F(T) engine with arround 1.4bar and itÂ´s working well so far

the only problem I have is the clutch at the moment

IÂ´m already running an uprated clutch from sachs which was meant to be good for arround 300Hp but when fully accelerating it starts slipping.
Can you probably tell a little bit more exact what kind of clutch youÂ´re running and what had to be done ? it also would be useful to know how much it had cost and where you bought it ?
As I wrote in some other threads I think IÂ´m running arround 250-270Hp at the moment but havenÂ´t had the time and money to get it Dynod like it is at the moment to see how much power and tourque the engine has at the moment.

And nice to see you at the board !

Regards

Tobi

martinholmesuk · Post by **martinholmesuk** » Mon Sep 19, 2005 8:57 pm

I had 25psi on my T25 but the auto just wont take it very well. I'm on 15psi (once it stops boost leaking)

Gonna hook my g/b cooler up to with a cooler supply of water to keep it cooler and stop cooking it all.

My piston also melted when the damn injector went lean

I do have a 2 bar map sensor but i'm back to the 170 mod so it's not in use.

tobi480turbo · Post by **tobi480turbo** » Mon Sep 19, 2005 11:48 pm

Hmmm,

you still have the auto problem and the temp ? doesnÂ´t sound that nice

Do you plan to use the 3bar sensor again the next time or do you probably want to sell it, or exchange it with the 2.5bar version I have ? ( just an idea )

Regards

Tobi

martinholmesuk · Post by **martinholmesuk** » Tue Sep 20, 2005 7:19 am

Sorry to hi-jack the thread!

@ Tobi, ATF gets very hot! I can almost feel the power going as it heats up

I think the 3bar map sensor was 80 ukp new, PM me your offer. I'm afraid I don't need a 2.5 bar sensor.

huskyracer · Post by **huskyracer** » Wed Sep 21, 2005 5:28 pm

@Tobi
The clutch I currently use is made by a company called Techniclutch, WWW.techniclutch.com 0800 0834142. the clutch they did for me is for a 220 mm flywheel, which is a straight swap for the 200mm that I had originaly. It has an uprated pressure plate, and a heavy duty organic lining on the centre plate with stronger springs in the centre. It is lighter to use than the A.P. 200mm stock cover plate I used to use, and is supposedly capable of coping with 300 lbs/ft torque. so far I have had no problems. It cost me a very reasonable Â£130, although I think that is a slightly discounted price

Does anyone have a picture or any info on the 400 diesel con rod?
If anyone is about this sunday, I am going up to santa pod for some quatermile action, would be good to not be the only one there with a volvo!
Thanks
Iain

tobi480turbo · Post by **tobi480turbo** » Wed Sep 21, 2005 5:56 pm

Hi!

thx for the info !
IÂ´ll se what IÂ´m going to do about the clutch ... if I remember right my uprated clutch should be good for ~450Nm and ~300HP .. also with uprated springs and organic centre plate ... so there are 2 possibilities, the clutch isn already used to much ( 20.000km ) or IÂ´ve more than 450Nm of tourque. Hope to find a solution the next time cause it doesnÂ´t make that much fun driving with a slipping clutch :/

Cheers

Tobi

tobi480turbo · Post by **tobi480turbo** » Thu Sep 22, 2005 5:48 pm

Hi Guys !

me again

today I was at the Dyno with my 480 to see how much IÂ´ve gained so far, but something must have gone wrong there *hmpf
My A/F gauge was showing only lamda 1 ( green LEDs ) when full accelerating not like it should rich mixture ( 1st/2nd orange LED ).
Probably some problems with the cable connections or connectors, at the way home everyting was fine again, Ok I had unplugged/replugged the MAF and Throttle conector before driving home. Tomorrow morning IÂ´m going to give it another run at the Dyno and hopefully then everythin is going to work OK ! TodayÂ´s results were ~330Nm of tourqe and ~ 190Hp, and hereÂ´s a pic from my 480 taken at the Dyno ... donÂ´t look to accurate at the power and tourque graph ... they were looking ugly today over 3500rpm

hope to get some much better results tomorrow with everything working fine

Cheers

Tobi

pol · Post by **pol** » Thu Sep 22, 2005 7:08 pm

Hmmm Santa Pod!

Always wanted to have a go on a RWYB day!
Looking in to it...

pol

Ettore Bugatti · Post by **Ettore Bugatti** » Thu Sep 22, 2005 7:16 pm

Almost double the TQ as standard. Very impressive!

tobi480turbo · Post by **tobi480turbo** » Fri Sep 23, 2005 11:03 am

Hi again

update from todays results ... seems like everything was working fine today at the Dyno and the final results so far were ... ~200Hp and I think impressive 352Nm of torque at at boost pressure of 1.3bar

going to try if I can get a little bit more of boost which should give some more Hp and some more Nm ... but the limit with the boost is at ~1.4bar with the MAP sensor I have at the moment

Cheers

Tobi

Ettore Bugatti · Post by **Ettore Bugatti** » Fri Sep 23, 2005 11:23 am

Very nice! btw is it flywheel or wheel figures?
Makes me wonder what your 80-120kmh in IV gear is. About 5 seconds?

Is it easy to recalibrate the rpruen ECU for the different MAP sensor?

vins480t · Post by **vins480t** » Fri Sep 23, 2005 12:39 pm

sertainly nice figures
must be wheel results

huskyracer · Post by **huskyracer** » Fri Sep 23, 2005 5:35 pm

good figures Tobi, are you still using the stock throttle housing? I found this quite restrictive past about 180 bhp, How much boost does the car hold at high revs? from the torque curve from the previous dyno run it looked like it was tailing off. How big is the fan at the dyno? Sorry for all the questions, but I am a dyno operator so It's always interesting to see what other people are doing!
Heres a power graph for my car before the last couple of mods, the figures are at the flywheel.

tobi480turbo · Post by **tobi480turbo** » Fri Sep 23, 2005 6:41 pm

Hi Huskyracer

hmmm good questions you were asking

About the fan I donÂ´t know exactly how big it is, but as I think it was ~1m or something in this size, havenÂ´t had that much to do with dynos.
At the moment IÂ´m running the engine with the standart 1.7L throttle body but IÂ´ve the one from the 2L engine lying arround here somewhere ... so probably itÂ´s worth a try again with this one.
The boost was at ~1.3bar at lower revs but than dropped to arround ~1.1bar as I had seen ( but could be wrong ). IÂ´m going to play with the MBC the next few days to see if I can get the boost a little bit higher.

hereÂ´s a pic of the actual graph from the dyno run today:

itÂ´s not that nice that the torque is going that much down at thigher revs

or why it has this ups and down at the mid rev ( ~ 3500/4000rpm ) section ?

Whish I had some guys arround here like you guys in the UK !
sadly IÂ´m more or less on my own with my problems cause nobody is interested in doing/working at such an "old" car ... or nobody is used to it.

Regards

Tobi