BigErn

400 bhp in my Sapph.

What do I need to make it so? Can I run standard comp?

Its 2wd (205 block) running greens, 3 bar map sensor, collins chip (unsure), bd10 cams, T34 with cut back exhaust wheel 360 bearing and 0.55 exhaust housing (Rated for 430bhp), boosting 23psi peak and holding 20psi.

Is it as easy as running greys, Rs 500 intercooler and changing the chip?

Work will, as alway, be carried out by myself to keep costs down. Except the set up of course which will probably be done by Stu.

Thanks in advance, any advice is welcome.

cossie4i+

iTrader: (15)

I don't think it will be far off if you do the things you have said

Mine is not far off, but mine has a ported head and 400s (same turbo as you + 500 cooler etc)

Steve.

CossieRich

iTrader: (1)

Not sure you will see 400 on a .55 housing

rapidcossie

exactly what i was going to say Rich..

will need a 63 housing at min or a t38 at best.

blues or greys and a diff chip and about 2 bar probs

CossieRich

iTrader: (1)

more than 2 bar will be needed with a t34.63.

xr2i-carl

so you can run a standard engine apart from headgasket over 400bhp?

cossie604

iTrader: (2)

On ebay you can get a resistor that will give you 200bhp and also they do turbo's that will push you to over 800bhp...and electronic superchargers that will see you closer to a 1000bhp...why has no one else ever followed this route??


Yeah mate...a few bolt on parts plus a decent head gasket on a YB can see a healthy 400bhp....providing your lump is in a solid state to start with. Get it done

bud-weis

To guarantee 400bhp you will need a bigger turbo than a T34,i'd say T38 like mine but tbh they're shit

then a set of greys
WRC gasket or Wire rung block
RS500 sized cooler
Grp A Fuel Pump and new wiring to it
Live Map

xr2i-carl

not a full re-build and forged pistons then? not really needed?

bud-weis

engine should be pretty fresh to be honest,a tired engine won't last that long at that power.

but a standard engine and comp ratio (std pistons) are fine at that level

gwynny

and wish the g/box luck.

bud-weis

it's 2wd,so he'll be fine

BigErn

So what is the realistic power Ill run with my current turbo then?
I dont want to stress it so much it dies quickly.

I plan a full rebuild next winter so as long as it lasts me till then Ill be happy.

The head on mine is ported and polished too.

BigErn

TBH 380 would suffice but 400 is the target and Id be well happy with that.

dave cos4x4

iTrader: (5)

the t34 would be working hard.

but it is easy to achieve with a standard engine build.

Billabong

I know our T38's are slightly different spec', but what don't you like about it? - I still love mine (not literally ).

3drstretch

iTrader: (1)

I had a t34/55 engine but comp ratio was 7.2/1 and was pushing turbo to its limits probably at 32 psi spike holding 28 psi and that made 390bhp and that engine was far from standard. So would be happy with 380bhp if i was you mate and dont want any lag Check out my spec list in this months perfomance ford ( Texaco 3dr )

BigErn

Which chip do I need to use for this lot?

Cheers guys.

bud-weis

well it's laggier than a T4,and obviously won't make as much power as a T4,so to me that's not great, i have my RR graph somewhere i can show you if you like,full boost is about 4800 or summat silly,and it only starts boosting at 3200 i think too

although the rest of the engine spec saves it from being a complete disaster and it should hopefully make decent numbers once i've changed a few things

crash_ash

what about a cometic MLS gasket and strtch bolts on standard comp, what sort of power / boost will they stand?

CossieRich

iTrader: (1)

see my sig for a good 380 bhp.

coswurv

iTrader: (8)

What have you done to the front of that poor car !!!!!!!!!!!

Billabong

Bud-weis, is it the same on the road? I'm pretty sure I'm hitting full boost a fair bit before that. Might be worth checking with Karl if all's as it should be?

bud-weis

well it seems to be pretty similar on the road,i'll keep an eye out or the next couple of days.....the car does seem very fast though,and actually doesn't 'feel' too laggy,but the figures say it is

Karl is NOT a fan of my turbo at all,but he concedes it is ok for my car and if i'm happy with it then why change it....in the near future we're gonna push it to it's limits,so if it helps me make good figures/makes the car faster then i'll be happier with it,but i want at LEAST 450bhp,and am secretly hoping i'll be pleasantly surprised with it,were gonna push about 2.5bar (maybe slightly less)held through it though,so hope it stays in one peice but it made 424bhp with only 1.8bar held recently,so in theory it should do well

rapidcossie

would say there was something amiss if a t38 aint getting full boost until 4800.?

boost leak?

Bud..check the manifold where it connects together...my car used to lose boost from there and increased lag, bigtime.

look for carbon on the heat sheild.

NEIL A

iTrader: (6)

bud-weis_ what T38 are you running a Turbo Technics or Universal turbos when i was looking into them i heard the UT one was ment to be better for lag, also heard the TT one has had problems with surge on standard heads.

bud-weis

Mines a UT version,and all T38's can suffer with surge if not mapped correctly,

it's not long been mapped Euan so everything should be fine,it's going back soon for different Injectors/ECU/Map sensor,and i may ask about cam timing to see what can be done

NEIL A

iTrader: (6)

I have just fitted a UT t38 and my car is in for mapping justnow along with getting the cams dialled in so will be intresting to see where it makes peak boost, im running BD10(lag) cams so might not be that great. On the way through to drop the car off running 10psi it seemed to be coming on boost early enoughbut was trying to keep it off boost so never let it build, will need to wait till its mapped to see what it will do.

rapidcossie

even when my cam timing was standard my t4 was stil on boost quicker than your t38

thats what makes me think there is something a miss.

basically the more air the engine can flow the less lag the turbo will have.

remeber im running very comp too so mine should be ALOT worse than yours.

strange

rapidcossie

just been studying my boost graph.

my car jumps from 0.6 bar at 3500 revs to 2.6 at 4000.

no wonder it wheel spins when the boost comes in

foreigneRS

live map will make the best of what you have

pete mcrash

iTrader: (1)

i use a ut t38 and hit full boost at 3500rpm @2bar

bud-weis

For Euan,these are my plots....the info is fairly straight forward,the boost plot shows how it's mapped to fall (because of lack of fuel from the greys) and the AFR shows how naff level6 is

there was 2 runs done,first was 424bhp and 2nd 420bhp,power @wheels is shown on the fuel/boost plot

i'm 'pretty' sure this is exactly how the car behaves on the road

http://img.photobucket.com/albums/v2...as20060262.jpg

http://img.photobucket.com/albums/v2...as20060264.jpg

rapidcossie

so 358 ATW?...

yours is 2wd isnt it Bud?

So going by DD you lose 66 bhp.

why do DD rolling roads not use a fixed ref points for revs?

for example, in 500 RPM increments?

JamesH

iTrader: (21)

Is it really worth it for an extra 20bhp

bud-weis

Yeah 2wd....the increments are fixed,just 800rpm between major grid lines which makes it awkward to read in more detail....


Smidsy

well i wanna go L8 anyway because it's a much nicer drive,so i may aswell do all i want to do at the same time.....hopefully be able to do some juggery and improve spool up,but also aim for a big increase in torque

JamesH

iTrader: (21)

So you're keeping the T38? What about injectors?

col cos1

iTrader: (5)

about the same as mine...............................wonder if il see an increase now with the new ecu and chip????????????????????

bud-weis

Yeah the T38 will stay...although it looks a little naff it actually feels good to drive with,and the car really picks up well.

i'm going to 1000cc injectors and a 5 bar map sensor along with the level 8,oh and the standard air box will go back on before the remap.

you never know i may see summat extraordinary from the turbo,but i doubt it just depends what kinda boost it's capable of holding,420bhp at 1.8bar isn't too shoddy i suppose,so with 2.5bar or thereabouts it may just be very very good.

also in reply to Pete,my T38 receipt says 'special build' on it,so it may not be exactly the same spec?

col cos1

iTrader: (5)

i couldnt believe the diffrence to my turbo spooling up time after ava dialled my bd14`s in it forced the boost of the t4 in alot earlier and reduced lag by a fair bit..........it felt like a diffrent car