Ok here is the spec

 

PE1420 turbos,

Border front mount intercooler

forged rods Eagle

Forged pistons

Cometic Head gasket

555 nismo injectors

Accel race bearings

Mike smith manifolds

reworked heads and cams ( unknown )

custom exhaust

full under drive pulley set

Fidanza Lightened balanced flywheel

uprated alloy radiator

hard pipes

leader differential gear set

 

on its way on thursday to Turbo Noz for a boost increase and re map

 

what do you reckon are the BHP and Tourque figures

 

winner closest gets some Rep and something nice in the post

 

get your thinking caps on guys and girls

 

Kaza :punk:

Can I play?

521 fwhp

Can I play?

 

if you do im gonna guess 1hp below and 1hp above whatever you 'guess' lol

495 rwhp 515 torque

Can I play?

 

Sorry Dude...... but there might be a bottle of Kazakhstans finest cognac in it for you as a thank you if your a good boy :)

i dont disagree about the tubs .. but the injectors are 555 .. and thats the limiting factor of about 550hp as this will be kinda at Max duty ..

so for it to run safely around the 500hp mark would be good

 

agreed with mark 90% is safe limit so at 45psi so mark is spot on with 500 being max at that fuel pressure

 

Nothing will be pushed, that's not how I do things and I only go chasing numbers whilst investigating limits in my own vehicles when I'm being a Dyno Queen :sorcerer:

 

However, I should address the use of the word "safe" here. Given the modifications to the engine in question, BSFC (Brake Specific Fuel Consumption) throughout the entire rev range will be reduced, meaning more power produced for the same rate of fuel consumed, (or greater economy at the same power). BSFC = fuel consumption rate / power. The 1hp per cc at 100% is based on a BSFC of 0.57 that is too high for the modern turbocharged engine... System reliability is paramount and the first concern for any tuner worth their salt, but it's simply not feasible to state 555cc injectors are at "max duty" at a certain power level and to state "safe limits" & max power etc without considering other factors first. It's OK as a very loose rule-of-thumb, but alluding to anything over 500bhp in this configuration being unsafe could be a bit misleading :)

 

Even without the tech, I'm sure everyone will agree now that 400bhp is easily attainable with stock 370cc injectors at stock fuel pressure (43.5psi) with a safe IDC (Injector Duty Cycle). Multiply this by 1.5 (555/370) and you get the potential for 600bhp's worth of fuel...

 

My car made 394bhp with just HKS air filters, backboxes, lots of boost on the stock 370cc injectors with a peak reported IDC of 94% (it was lower than this in fact). Very inefficent with a large amount of backpressure running stock cats. Similar cars run more power at less boost once the thermal efficiency of the engine is improved (exhaust systems, dual intakes, intercoolers, headwork etc). Silverline, doesn't your own car make 420bhp on stock 370cc injectors? At the same fuel pressure & BSFC 555s would therefore supply enough fuel for 630bhp! Years ago I ran over 400bhp (382@hubs) on a 1.8L using 4 x 510cc at 40psi (=489cc). Now that was tickling the limits ;)

 

For a simple calculator to play around with various figures, see here (bottom of page): http://www.stealth316.com/2-air-fuel-flow.htm

 

Stock 370cc, 90% IDC, BSFC=0.6: BHP = 317.15 (0.6 = "typical turbocharged engine", except it isn't! 0.6 is for a richly-fuelled non-intercooled turbocharged engine. Too high for the average VG30DETT)

Stock 370cc, 90% IDC, BSFC=0.5: BHP = 380.58 (Much closer to reality)

Stock 370cc, 94% IDC, BSFC=0.5: BHP = 397.48 (My car for example)

Nismo 555cc, 90% IDC, BSFC=0.5: BHP = 570.86

 

A single intake will likely be the limiting factor (again, the exact BHP & corresponding voltage is dependant on engne efficiency), dual intakes free up a lot of power way before this point though.

 

Sorry Dude...... but there might be a bottle of Kazakhstans finest cognac in it for you as a thank you if your a good boy :)

 

Well, got a bit of work to do first before the dyno. Enough time for one lucky champion to bribe me to produce the figure they want :whistling:

A single intake will likely be the limiting factor (again, the exact BHP & corresponding voltage is dependant on engne efficiency), dual intakes free up a lot of power way before this point though.

 

 

 

Well, got a bit of work to do first before the dyno. Enough time for one lucky champion to bribe me to produce the figure they want :whistling:

 

yes indeed .... bribes and co-horting ....the guesses will be closed at 7pm tonight ..... HA !! :) interesting mathmatical logic there Noel, ...by the way the petrol tank is probably on less than 10% if you need to put any go juice in it , let me know and i will re imburse obvioulsy, the missus has had instructions to get the kettle on ..drop her a text shortly before you arrive and she will sort you out a nice brew...and a toilet break if you need....

 

if you think a dual MAF set up is the way to go or if you know of how to reduce the intake restriction let me know mate and we can discuss it ....price etc

 

safe journey Noel

 

and thanks in advance

 

steve

If you want the best from this set up you have Steve and plan to set the car up just this once, Fit a dual MAF and quickly!

Smithy

If you want the best from this set up you have Steve and plan to set the car up just this once, Fit a dual MAF and quickly!

Smithy

 

What are the best options for this chaps? Selin jobbie?

What are the best options for this chaps? Selin jobbie?

It's certainly a very good system by all accounts and fairly fautless too, however Noz mabe able to do what the Selin translater does when mapping the car i dunno, but yes it gives good results with twin intakes.

 

smithy

Silverline[/b][/color][/b][/url], doesn't your own car make 420bhp on stock 370cc injectors?

 

 

 

no bud got 680cc top feeds in mine :)

Since I assume you have standard cams Im gonna be sub 500 as well to be safe

Out of interest, What spark plugs do you have in?

there will be a colder set of plugs installed by Noz before the re map ...anybody got a dual Maf set up they are selling ? :) or can put me onto a linky linky

 

cheers

It's certainly a very good system by all accounts and fairly fautless too, however Noz mabe able to do what the Selin translater does when mapping the car i dunno, but yes it gives good results with twin intakes.

 

smithy

 

Indeed I can, that's how my own car is set up.

So what's your guess Noz?

I'll go for 519... one of the not very many numbers left that havent been taken :D

Any results yet?

Any results yet?

 

Crikey! Only got the car back at 2am this morning :)

Anything yet?

478hp

Is that the result or another guess?? Lol

its a guess lol

noel is grafting away fixing boost leaks and clearing fault codes etc .....all good things come to those who wait ....no doubt Noel will post up the results after he has got it all to how how it should be .....watch this space ...

400 BHP @ the hubs:biggrin: