Hrsturbo

pleased with the power my car made by going gotech - 233 bhp with 234 lbs torque! only engine mod is my newman cam lol. peaking 19psi.

what sort of performance figures am I looking at with this power (0-60, 0-100, 1/4 mile ect) with full standard interior, uprated suspension / bushes - nothing special.

how would I compare drag racing a stage 1 cossie??

cheers

Dragsteer

Try with "CAr Test" , maybe old but ok program

Hrsturbo

can we expand on this please, bit tired and dont understand??

Dragsteer

I mean you can put in program everything ( height, widht, power , rpm, tyres ..........) and you will get your 0-60 times and much more. U just download from web free program who works in DOS.

dave_y

iTrader: (4)

0-60 i would be looking for around 6.5secs

Hrsturbo

got a site address I can get this program from?

cheers

Fiecos Dan

i would say at its best, if those bhp figures are accurate.

on good road tyres, and V- good driver, 13.8 @ 104 mph ish.

and 0-60 in 5.5, 0-100 in 13 seconds

Dragsteer

http://www.cartestsoftware.com/cartest4.5/index.html

at the end of page u can download.

All data you will find here : www.carfolio.com (search:escort)

RST Ski

what intercooler and turbo you using matey? what other bits u using aswell? is your engine freshly rebuilt aswell?

u using standard gearbox and clutch on that aswell?

soz about the questions but would love that sort of power

Turbocabbie

out of curiousity is this power measured at the wheels or flywheel and what about cooling mods are you running the standard intercooler and what about turbo? is that standard and how much boost are you running

Hrsturbo

using standard turbo / enigine apart from my newman cam and solid followers I fitted.

Got a radtech frontmount intercooler with stage 1 gearbox, AP paddle clutch. Vibratechnic gearbox mounts, silicon hoses.

greddy electronic boost controller set at 19psi.

Made 205bhp on rolling road with standard mfi setup at 16psi, got gotech fitted and boost increased to 19psi and made 233bhp on rolling road.

Its flywheel figures I think. pretty sure they work out losses through the transmission on the rolling road.

next to come is head work which should release some more bhp before touching the engines internals to up the boost lol

Ad4m RST

230hp on a standard turbo...

Fiecos Dan

I take its Jamsport rollers then?

Hrsturbo

yeah jamsport, why are they meant to be out?? or are they fairly accurate?? when it was rolling roaded at 205bhp it was on power engineering rollers and feels a lot quicker now

Fiecos Dan

I know PE rollers over read, of what i've seen & raced.


Not sure about Jamsport RR, But Pf Nicks 260 bhp car, only done terminal times of a 220bhp car.

Hrsturbo

I know all rolling roads are going to be slightly different but surely they wouldnt be as much as 40bhp out??

looks like I'm going to santa pod in summer lol

Fiecos Dan

It will be if thay use different mao for a RR readout, and one for the road.


i believe the only Real accurate RR's are really Dyno Dynamics RR.

mitchrst

so jamsport lie about there rolling road figres then ?

Hrsturbo

dnt think so, like I said rolling roaded at 205bhp at power engineering then change management and up boost, feels a lot quicker and graph shows 233bhp at jamsport.

unless there both into it lol

turbotrev

I recon at a guess you'd see 60 in about 6.5, 100 in about 14 and quarters in about 14.5 at just over 100mph (all rough estimates in my opinion)

Cheers

Paul

Fiecos Dan

No, i'm saying nothing against Jamsport in anyway.



Just PF Nicks car might of been mapped on the RR to get the figure, and gets used on the road on a different map.

Andy_R

iTrader: (3)

*cough* Bullshit!!!!!

Dont believe the hype

xr2i-carl

i agree with fiescos dan : and 0-60 in 5.5, 0-100 in 13 seconds
easy

the car in question


a mighty fine erst if i may say so myself

GaryEvo

he must be wrong surely thats AVA's!!

Andy_R

iTrader: (3)

Gary, I wouldnt go as far as to say that they were "the only real accurate RR" they are a damn sight better than most though


I recall at a recent RR day attended by Ben & Nick from Performance Ford, they both commented on "how good a set up AVA had, compaired with others"

LEE-RS

sometimes lower power is quicker to 100 because you have less issues with not getting traction

rapidcossie

i have been to Rolling roads where the operator doesnt even check the oil

the RR i only as good as the operator..


i have been to places with brand new dyno dynamics set ups where it is very clear that the owner has no clue what they are doing...

NUTS RuS

iTrader: (35)

Who cares its only figures for the pub

Like you say get yourself to the pod for a giggle if your interested in tha sort of thing

Fiecos Dan

Sorry, But thats may belief, after using a few RR's, the DD RR seem'd best. and i aint the only one saying it, so are alot of TOP tuners.

But As Euan said, a RR only as good as the operator.

rapidcossie

one problem i have found with DD rolling roads are the small retarders..

this caps top speed on the rollers to 120mph...

makes it very hard to test the car properly...

Fiecos Dan

i'm not to sure about that, But i would do anything above that on the road any how, for the cooling reasons ect ect.

Turbocabbie

Would agree with that statement as my car has been on three rolling road and it pushed 30bhp more on PE than any of the others

GaryEvo

how does it make it hard to test cars properly???

and its 150mph actually

rs_daz

Not wrong there mate..My old s2 was 225bhp and my mate in his shagged s2 van prob pushing 165bhp beat mine By the time mine came on boost with the big cossie turbo and low comp pistons he was gone

rapidcossie

my mistake but i was informed by a well known and experieneced tuner who uses a DD that it was 120.

i mean its hard to test a powerful car properly due to the load that has to be put on the rollers to contain the torque of the car.

GaryEvo

i still dont understand why just because its a powerful car the dyno cant hold it back,we've had 500bhp cars and still been able to hold that power no problem,may be on dynos that wheelspin problems i can see a reason why it would be difficult to test

Fiecos Dan

As Gary said, i think wheel spin will only be the factor, But if strap'd down correctly, i've seen a DD RR take 1200 bhp on RWD muscle car, with NO wheel spin.

GaryEvo

to make sure you guys are not getting wheel spin on the dyno ask the operater to measure engine rpm at the engine not calculated from roller speed and then after a run get them to plot engine speed against road speed,
the line should be straight if theres no wheel spin,ill get a printout if i think of it and show you

beware though if they do measure engine rpm from rollers line will also be straight so insist they use a engine rpm pick up

Fiecos Dan

Gary,


What happens to the power and torque,

if say the speed to gear is not correct,

if wheel spin happens,

and also the difference if run up in 3rd or 4th?



Will it read over or under?

Christian and Beccy

iTrader: (14)

If you look at these graphs, the axis' represent actual speed and RPM. For those that don't understand the technical aspect of RR runs, let me clarify.

If a car is accelerating, whether it be on the Rollers or on the road, in relation to the Speed, the RPM must rise in a linear fashion, in other words, the speed and RPM rise proportionally.

If the RPM rises, but the speed doesn't follow a similar linear pattern, then traction has been lost. Imagine what it is like on the road, you plant your foot in second, it breaks traction and the RPM shoots right round, but you don't really go much faster.

The first graph shows a successful run, where the Speed vs RPM plot is a straight line, rising in a proportional manner (otherwise known as 'linear'). There was categorically no wheelspin on this run......




This graph shows a glitch at around 4600rpm, which is about when peak torque is produced on this car. Traction was lost here. That run should be disregarded.......



Of course it is important to measure RPM accurately too. Alot of RR operators for ease just use the car's RPM gauge, but these are notoriously innacurate. The best way is to probe an ECU pin or use an HT pickup.

I hope this helps people understand a bit about loss of traction on the dyno and the significance of it in relation to the accuracy of the results.