Abbey Motorsport

[pomona]

Went to Abbey M/S over W/E.
525lbft torque at 2600rpm making 552 lbft at 3600.
Still 540lbft at 5000 plus.A/F ratio constant thro whole rev range and pushing 1 bar boost at 4000 thro to 5000rpm.
Dont say i am running to much boost for a LSI.
Pistons and C/R answers all.
Also Abbey guy impressed with EFI Flashscan when making a few adjustments during dyno tests.
For you bhp fans,straight line up to 6000,making 534 at hubs! All DIN not SAE.

[island boy hsv]

Very impressive numbers, what made you go to Abbey? I knew your car was powerfull but I did not appreciate how powerfull. Would be very interested to see the dyno sheet.

[uk hsv]

a little bird told me you were going to Abbey.......

As usual a good set of results ..

What did you think of the dyno system?

[sjc]

Very impressive, would love to be a passenger for 5 mins if we meet up, no longer or it might bend my wallet1
Having a great bit of banter on "General Gassing" with a M3 owner who thinks we all drive Australian tractors! see " Is there an alternative to a M3"
Paul did you get my mail?

[uk hsv]

"sjc" just got back after a weekend of playing cars !!!!!

I will email you in the morning when I have an idea about time scales.................

[stevieturbo]

I imagine traction is a problem with such low down torque ??

[pomona]

Very impressed with Abbey and system and guy who runs the dyno(forgotten his name,age i think!)was very helpful and most enthusiastic.
I have also full excel sheets of 3 runs showing progression thro each RPM ie 2000 to 6000rpm..
1st run produced detonation at 5000 so backed off and i took 3 degs out of HOcS from 4k thro to 6k at mid boost range.No more detonation on next 2 runs.
Details in Excel are far more informative than graphs,and with the EFI logging charting at same time the info is tremendous.
The EFI Tune package is ever so user friendly and linked with Scan software makes tuning more understandable.Well,it does for me anyway.
Now,do i go to 3.1 blower for yet more or stay as is ie present 2.3L????
If anyone wants to see a Excel sheet i could try and mail you.

[uk hsv]

[quote]If anyone wants to see an Excel sheet i could try and mail you. [/quote]

Yes please [e-mail]

Have you any thoughts on the Harrop unit?

[stevieturbo]

I know somewhere that does a 402ci short motor.

Based around the LS2 alloy block, its a 7.0 short motor, with all parts needed to convert from LS1 bottom end.
Comes built, with either low comp forged pistons, or high comp, as desired, and Crower I-beam rods.

Could be had for around £4k in the UK.

Seriously considering one myself...Want to see if they'll do a deal on 2 of them ?? I have a guy in the US that can source them for me, as he is considering one himself.

[V8HSV]

Thats a good result panoma, you have set the benchmark then.

500 rwbhp (DIN)
550 Ft Lbs @ 4,800 (DIN)

[caspy]

Are the bhp and torque figures based on readings at the hubs or do they factor in tyre losses as per a rolling road?

[pomona]

caspy, torque and bhp figures are at the hubs.

[uk hsv]

"Pomona" the work we have done in the past at Abbey, "Dan" said a safe drive train loss for our cars on their dyno calibration would be -40hp are you happy with that figure?

[pomona]

If you plus up these figures by 40,we arrive at similar figures achieved on a rolling road with correction factor applied.
It is the torque that i went for,my tyres dont like it,but i do have the legs of most in acceleration.
Yes,more than happy with result so far.

[caspy]

Has anyone on the forum ever strapped timing gear to their car to record 'real' 0-60 0-100 and in gear etc ?

[V8HSV]

A57 HSV did when Autocar did an article on it, 0-100 10 secs from memory

[uk hsv]

We data logged a 05 CV8 at the weekend via the PCM and it came in at 5.88sec to 60 after the tune!

With a rip shifter it would go 5.5................

[caspy]

OK OK. I know i will embarass myself in asking this question......

What on earth is diff between DIN, SAE, BHP, PS, KW etc?

Thought i knew the KW and PS was, but confused about the other.

Help......

[V8HSV]

Might be which contry adopts the unit of measure, PS is for Germany etc.

Abbey results on mine were 550 torque DIN or 599.6 SAE for eg

[v2hsv]

BHP, PS, KW (also CV, CH, PK, HK etc.) are all measurement of power.

SAE, DIN etc. are standards bodies that all have a different but similar measuring system.

The fundemental law is that power is a measurement of torque (energy) over time.

In the case of a rotating machine: power = torque x revs

The equation to convert the usual power measurements is:

1 HP = 745.7 Watts (i.e. 0.7457 KW)

But difefrent countries have slightly different techniques of measurement that mean that one countries horsepower is slightly different from another.

I find the best way is just to find conversions that produce a standard number, and it might as well be the DIN standard (thats what I use).

In order of more power for your Horsepower standard:

Here are the most common ones listed:

1 KW = 1.360 PS DIN (German standard, but japanese use it as well)
1 KW = 1.341 HP SAE (British and American)

Note: PS is actually german for horsepower = Pferdestrake

Australian HP measurement methods normally mean that they are 2.333% higher than the DIN equivalent method.

So if you want ot convert KW from a Oz car to DIN

KW x 1.360 x 1.023333 = PS DIN (which is what most euro buggies are rated in)

Hope that helps?!?!?!?