dom123

iTrader: (1)

Ive put my car on the rr today after a ££££ worth of mods including tt38, 83lb injectors, plenum spacer, 500cooler, 200block, 7-8-1cr msd chip, i was waiting to see around the 450bhp mark, to be given a reading of 385bhp 415lbft.

I cant belive how bad it did with these mods!! There was 33psi spike and 30psi held of boost and perfect amount of fuel... so where is the power loss?

ive got paper work of porting to the head of 25.5mm inlet standard outlet ports and also reprofiled bd10 cams but i can't be sure that its the same head as the history goes way back.... my other concern is perhaps my cr is slightly lower than 7-8-1 could this cause this?

Whats your spec around the 450bhp, headwork cams etc?

cheers

cozmeister

iTrader: (1)

385bhp or 385hp? One, if I understand it right, takes into account the transmission losses (around 50hp I think) - this would mean that you actually made circa 435hp at the flywheel and 385 at the wheels, which is as close as makes a difference 450. But i'm not an expert as someone will soon point out....

HoylaRS

fords eh!!!!

dom123

iTrader: (1)

it was 385hp i think it is the fly reading!

dom123

iTrader: (1)

bttt

pa_sjo

Did you get it live-mapped or did you just bolt all the parts on?

cozmeister

iTrader: (1)

Get a copy of the graph up for us to see - you'll soon find out

Staffi

iTrader: (1)

Are you 100% sure that's the ATF reading??

Mine with the UTT38 on made 378atw WHICH = 442.1 ATF.....

dom123

iTrader: (1)

thanks for your reply it was def at the flywheel, whats you exact spec mate?

cheers

Staffi

iTrader: (1)

Spec is..

205 block bored to+ 0.50mm & new core plugs
Mahle 4+4 pistons+0.50mm Machinded by A1 Rallysport
7.5:1 CR
UT T38 Turbo
Standard crank
NMS Cylinder head stage 2 standard valve sizes, isky double springs
Mountune WRC Metal head gasket
EEC1V Inlet Manifold
1000cc Injec
NMS Spec cams ground fron new billets
Coil Pack
Pro Alloy Intercooler, Radiator,Turbo cooler
Aeroquipped lines throughout
Grp A fuel Pump
Autronic ECU Mapped by MA DEVELOPMENTS
Peaking @ 30 psi holding 28
442.1 ATF 378 ATW 356 FT.LB

Stu @ M Developments

iTrader: (12)

Hi. She doesnt seem to have done so badly to me mate. If you look at it in percentage terms, you are about 10 - 12% short are you not?

The torque is excellent, only teh power is short, so what your asking is can the compression being too low and the head porting being wrong cost you 10 - 15% Power? The answer is a resounding yes, it certainly can.

I would have the inlet off and verify the head dimensions as that power and torque are pretty synomous with a standard head.

costina

iTrader: (1)

Do you have vernier pulleys? these if not set up 100% will cost u power.
4 degrees on my old pinto injection cost me 28 bhp.

I would suggest a live map to make the most of your mods but remember torque is power

Paul

dom123

iTrader: (1)

yer have got verniors but i can't be sure there right i'm going to send the head to cylinderhead developments, have it fully flowed and ported a new bd14 inlet and a new bd10 outlet, and he said he'd give me detailed instructions on how to dill them in, i don't think anyone round my way can really do but they say they can and take you money.!! best job when you do it your self!!!lol

Staffi

iTrader: (1)

Agree with Stu on the torque, that's very good tbh, mine only made 356 which is pants really, mind you, won't be on this set-up for to much longer..

costina

iTrader: (1)

To get the cam timing spot on imo you need to have a full set up on the rollers,set the timing to std and they can tweek them on the rollers

WHY because you will need a DTI and stand for setting up cam timing correctly

BD14 should do the job,but the only other restriction would be if you have a 2wd inlet if so change to a 4wd one or a small turbo escos onethe latter will need a bit of modding for the sensors

Paul

SillyFezzaMk1

iTrader: (1)

There are lots of other places to port heads other than CHDevelopments that will do a much better job for similar money IMO!

Mine was done by cylinder head developments and I'm not 100% happy with it (previous owner had it done by them) & there was a thread on here with pics of their work a while back and it was shocking!

My choice would be either Norris Motorsport or CNC heads.

Cheers
Dan

SillyFezzaMk1

iTrader: (1)

https://passionford.com/forum/showth...d+developments

This thread^^^^ pics are gone now though...pm user he might have them still.

Consider yourself warned! LOL

Dan

JTECH James

iTrader: (13)

i have a cnc one, work of art!

costina

iTrader: (1)

They are the best but you pay for what u get

Paul

dom123

iTrader: (1)

what inlet manifold is better 2wd or 4x4 or are they just the same? i'm thinking they could be slightly to fault as well perhaps if there different? how much bhp has been seen through the standard inlet manifolds?

cheers

Staffi

iTrader: (1)

4*4 on mine............

Simmo

iTrader: (20)

Hi Dom, you got Dan's old saff haven't you?!

4x4 plenums are slightly larger but you've already got a spacer haven't you?... if so it won't be worth changing as far as i'm aware...

JTECH James

iTrader: (13)

the spacer doesnt make the elbow any less restrictive......which is the problem area

trevCOSS

iTrader: (6)

how does the car feel to you? Is it fast enough or not as it sounds like if it had showed 450bhp you would have been happy, because it showed less your not, I would let the patented ass dyno measure the power for you and not worry about what the rolling road says.

Simmo

iTrader: (20)

Are the elbows different then between 2wd and 4x4 inlets?

trevCOSS

iTrader: (6)

yes 4x4 is cast into the manifold 2wd is bolted on and slightly more restrictive

Simmo

iTrader: (20)

I see... you learn something everyday!!!...

bigchez

As already said that's very good torque, esp for a t38 as these generally seem to give more bhp but less torque than a t34 (I'm no expert, just going on figures I have seen).

Chasing BHP figures is useful only for the pub!! I bet the car drives superbly with that torque, and at the end of the day 385 bhp is not to be taken lightly - its still a shit load of power.

did you ask the dyno operator what they thought the problem might be? That's assuming there is a problem. It might well be you just need more headwork to make the rest of the power you are after.

dom123

iTrader: (1)

thanks for all your input it seems that a few people have said that i'm chasing figures etc which is easy to think but my car was 370bhp for the last year and a half, which is why i fanced doing some upgrades!! so designed a 450bhp build ... i wouldnt have changed the turbo, injectors, ecu, plenum spacer for 15bhp if you know what i mean.. my old turbo could make those fiqures with a live map.. i have seem to have just gained lag!!

cheers

Mark Shead

What make RR was it, What was the size of the fan used and what gear was it ran in.

Mark

dom123

iTrader: (1)

it was run on a dyno dynamics it was the smaller fan of the two he had there, but the tuner had saw a similar engine turbo etc make 440bhp the week before!!! done in 3rd gear

dom123

iTrader: (1)

alright mate it is dans old motor just tweeking it!!! take it your local to danny then!!

Simmo

iTrader: (20)

Yeah live down the same road, had a 2wd black one before my white one now... he's meant to be speaking to you about popping round mine...

...I was also the passenger in Gav's flint grey saff on the A24 coming back from the Pod in April!!!

trevCOSS

iTrader: (6)

All I was trying to say was dont let the figure decide if the car is any good, decide for yourself, and it sounds like you have.

dom123

iTrader: (1)

oh i remember, i had a missfire cos of a fu*ked plug at the pod because i drove so slow up there to save gas i coked up the plugs i would say it was a close brawl tho!!! i was only get 1.3 bar boost, def the best play ive had since ive had the car tho!!! i'll pop over if you want what do you wanna look at? my shit cylinderhead lol...

Simmo

iTrader: (20)

When you were still on the greys I take it?!... I wondered when the excuses were gonna start coming...

It seemed pretty strong for that boost mate...

Yeah that'll be cool... wanna see what a T38's like mainly (running a few engine specs for mine round in my head at the mo!!! )

dom123

iTrader: (1)

Yeah that'll be cool... wanna see what a T38's like mainly (running a few engine specs for mine round in my head at the mo!!! )[/quote]

Yer i was on greys then and a terible mapped chip, danny must have wasted so much on gas, that exhaust pissed it out when i got it!!!lol

if your gonna tune yours i wouldn't worry about turbo thats the easy bit, get a good cyl head and cams on there otherwise you end up like me!!! also 55lb blacks are a good idea because they can be mapped for a t34 and you havn't got to change them in the future even if you put a t4 or a gt30 on there just saves money ive put 83lbs on mine i don't need to worry about fuel ever again!!!lol

Jim Green

Staffi : Yours has an EECIV which is off the small turbo Escort Cossie, which is acknowledged to be the best of the production inlet manifolds.

jammy86

Horsepower is a unit of Power (energy/time).

Brake Horsepower is where you measure it using a brake to load the engine.

What you are talking about is at the wheels (ATW) and at the crank (no real prefix)

JAmes.