That's why you have such a GAY torque figure for your spec!!

It's not like I'm gonna be holding 1.9 to redline so I'll take a chance I think....
If it goes BOOM then I'll have to rebuild again.....
Flea can pencil me in for mapping in 2020!

Arp nuts and studs is 180.
Cheap insurance me thinks.

"The standard TB0385 fitted to the Lancia Evo 1 has a 7 blade compressor 69mm/48.77 mm which is a 50 trim Nick's turbo has a 7 blade 69mm/52.2mm 60 trim. The TB04 S trim is an 8 blade compressor 70mm/48.35mm 48 trim, so the map you have is not correct for the turbo Nick has.
I can't find a compressor map that suits Nick's compressor wheel, but I originaly asked Turbo Technics for a turbo capable of 400BHP and that is what they put together for me. Mountune confirmed to me that they were able to get 400HP from the same turbo on the Escort Cosworth Group A rally car engines."

The garret 60-1 wheel is 7 blade 70mm... Can be used in machined T04b housing

Still 50lbs up on you though That's the equivelent of Marco punching you in the nuts

Are you sure? I think the 60-1 is a 76mm diameter wheel for the T04E housing. Biggest flowing wheels that I know of for the T04B are the 8 blade V trim - Garrett part number 409179-0025 - and the 6 bladed H trim - Garrett part number 409826-0015. I believe the Turbo Technics T34/T35 uses a 410299-0004 - anyway, it flows > 42lbs/min Turbo Technics use one of the larger-flowing T04B wheels in what they call a T38.

Well the Guy who built my turbo said it was a t38 in the first place... but after lengthy discussions with Saint we decided it was some kind of t34!
Is the t38 you speak of still 70mm compressor wheel??

Nick

There are no 7 bladed T04B compressor wheels. You have a 7 bladed compressor wheel, approx 69mm diameter so it is an uprated T34/T35 but it can't be a T38 I don't think.

T04b H trim is 7blade 70mm.. map for it here: http://www.rbracing-rsr.com/turbosupermaps.html#t4
Wich (i think) is the one in the 60-1

Where does it say it's a 7 blade? And no, a 60-1 is a different wheel (and map of course!).

There are NO Garrett 7 bladed TB04 compressor wheels. Check here.

Try this for wheel diameters.

Hmmm i might be wrong, im sure ive seen a 7 blade htrim or h3 trim, but cant find it now...

I might be wrong too! I wish Garrett would publish a decent history including definitive part number and description information themselves.... but I doubt that will happen, so it is a question of putting all the available published data together.

We have BOOOOOOOOST!
Leighton felt that the boost wasn't behaving correctly, as it was spiking then coming straight down to 1.4/1.5 and then to around 1.2 at redline..... Think this was how it was at the first dyno run (367hp / 318ft lb).

So decided to do one last leak test, it may have been the turbo just had no more to give? So system was pressurised and it was discovered any pressure over 1.5 and it would leak, as soon as pressure came back down to less than 1.5 it would hold, so today flea changed the old clips on the rubber doughnuts that link the inlet manifold to the head with 8 new jubilee clips, as he felt he could hear air leaking from down the back of the inlet ....
Et voila ...... Took it for test drive and it now has no spike, it's holding 1.75 bar really well, this should have a considerable effect on the torque produced!!

Nick

What's the specs of this build now then?

Spec on 1st page of this thread bud!

Nick

we may need the modds to dig it out of the archive

congrats mate!!
look forward to the end result!

how many times have i said that???

Great news! When will it be on the dyno next - and when will we know the figures?

I reckon we should have some new figures by middle of next week!!
My guess is ....... 378 bhp. & 362ft lb!

Nick

BHP 371

Same torque figure as before, flea reckons we've reached the max the turbo will give, as on the dyno it is peaking at 1.75 bar I think, then quite quickly tails of to 1.2 at redline, not just a spike now tho!
Flea said it actually holds the boost a lot better on the road compared to dyno,
When my car was mapped the first time all those years ago, it was mapped to 1.45/1.5 bar on the road but would only peak at 1.2 bar on the dyno??? Flea said this happens sometimes!! Dyno doesn't like the little old 16vt!!

Surprised the torque hasn't increased with little extra boost but hey ho, still a great result considering turbo guy said it would max out at 350!!

MASSIVE Thank you Flea for your perciverance, think we got there in the end!!
Now post the graph (s) ASAP!

FML he is done!!!! Lol

Flea is the man!

Happy your done mate! Must be a relief!!
Well done!

You may aswell send me that catch tank now Marco, an award for my 'services to Perciverance'!

Nick

Considering my prediction, I am 9 BHP disappointed. More than that though, I managed 340 ft/lb on a head-modified EIGHT VALVE Integrale engine with the same turbo @ 1.7 bar, so the 16 valve should produce more with 1.75 bar.

Whatever - it will be great fun to drive!

On a v8 twin turbo i worked on, the airflow from the blowers was restricted by the headers. with higher boost there was no increase in torque, but it moved lower in the rev range... and that is where you want it.

dont worry about the pub talk of large numbers, its wrong, just wrong. want a fast car? get loads of twisty stuff low in the rev range. by the time a 'pub talk' engine is working the other will have been through a gear change and bearing down on the next.

'area under the curve', that is what its about

anyhoo, i bet its a hoot to drive - enjoy it and dont chase the numbers

good result and well done to flea for the mapping

Finally Nick

Coming to Curborough to represent the 16vt lot?

Depends if I get chance next week to get it back as I've started doing contracting work, and I may be working away??
I'll have to decide Monday as I need to let Mario know as I was gonna take his place, so someone else can take my place if it's not possible, and they will obviously have to sort the dough out for Mario!

Nick

Graphs!!!





There you go peeps..... Finally!

Couple of things I've noticed on the graphs is The dyno would only alloy 1.58 bar max where as it will actually be somewhere between 1.78-1.86 on the road....

Also.... Looks like its spooling quite slow on boost graph (1 bar @ 4200)
But Leighton tells me there's actually 1 bar @ 3200 revs on road.....
Dyno doesn't seem to like my car.... It did the same 1st time it was mapped!!

All that's left todo if go collect her and go for a razzzzz!!

Nick

Can someone sort the links for me please..... Dam iPhone!!

Well done Nick

Who actually won the purpose of this thread then? Can't even remember what my guess was.....

HAHAHAHAHAHA