Saab 9-5 Aero - Hybrid Turbo and 9000 Bottom End - 350 bhp

[griffin dai]

Looking good

Your money/car mate but my cash would go on a diff instead of a big turbo and concentrate on handling mods/brakes You'll notice a hell of a difference and in reality end up with a quicker car (sub 90-100 anyway)

[HybridAero]

griffin dai said:

Looking good

Your money/car mate but my cash would go on a diff instead of a big turbo and concentrate on handling mods/brakes You'll notice a hell of a difference and in reality end up with a quicker car (sub 90-100 anyway)

Yeh you're probably right, it desperately needs bigger brakes and after that, anti roll bar etc. Need a ride in a big turbo 9-5 to see what it's like as this would be a daily driver still.

[HybridAero]

What I can't work out is why the wheel hp figures are so low - 259 hp atw and 341 bhp at the crank - Seems a massive difference for fwd. This rolling road 'uniquely measures drag' so could that be why the difference is so high? Last time is made 255 atw and 315 at the crank.

Edited by HybridAero on Monday 8th August 12:00

[tdm34]

HybridAero said:

griffin dai said:

Looking good

Your money/car mate but my cash would go on a diff instead of a big turbo and concentrate on handling mods/brakes You'll notice a hell of a difference and in reality end up with a quicker car (sub 90-100 anyway)

Yeh you're probably right, it desperately needs bigger brakes and after that, anti roll bar etc. Need a ride in a big turbo 9-5 to see what it's like as this would be a daily driver still.

Were are you based? if you're local to the Manchester area i'm sure my pal will oblige with a PAX ride, Griffin dai knows of my pal through UKS, his build thread was epic..

[griffin dai]

tdm34 said:

HybridAero said:

griffin dai said:

Looking good

Your money/car mate but my cash would go on a diff instead of a big turbo and concentrate on handling mods/brakes You'll notice a hell of a difference and in reality end up with a quicker car (sub 90-100 anyway)

Yeh you're probably right, it desperately needs bigger brakes and after that, anti roll bar etc. Need a ride in a big turbo 9-5 to see what it's like as this would be a daily driver still.

Were are you based? if you're local to the Manchester area i'm sure my pal will oblige with a PAX ride, Griffin dai knows of my pal through UKS, his build thread was epic..

I would if you can, probably different turbos fitted to mine so will be slightly less laggy (0.86 gt3076r....mega laggy!!!) most tend to go for the gt3071r but I found mne too laggy and only really useful for silly speeds, the gt28rs was quicker and miles more responsive under 80/90. Not much more laggy than the td04 but felt like a sledgehammer when it came on boost, similar to the 19t really

0-60/0-100 was around the same on both turbos (both around 5 secs to 60 & 10s to 100) but the gt30 was a good second quicker than the rs 60-100 in 3rd and would walk it above a ton, but turned the car into bit of a one trick pony. 70-100 was seriously quick though!! Around 2.7 seconds! But your just asking for a tug there. That's the main reason I've held off going for another big turbo on my 9-3, prefer it quick & rapid under 80/90.

Honestly budd, my money would go on the Quaife first and better brakes. It's made a massive difference on mine. Expensive but well worth it

@tdm34 is that Mikes 9-5?

[HybridAero]

tdm34 said:

Were are you based? if you're local to the Manchester area i'm sure my pal will oblige with a PAX ride, Griffin dai knows of my pal through UKS, his build thread was epic..

Based in Nottingham but if there's a decent meet on up for going anywhere, got a few friends up there in manc as went uni there, so up there couple of times a year. Which build thread is that? Need to see it. GT30 sounds tempting.

[tdm34]

griffin dai said:

@tdm34 is that Mikes 9-5?

Yup, he took a mate from work out in it today, he came back white as a sheet!

It's utterly hilarious...

[griffin dai]

tdm34 said:

Yup, he took a mate from work out in it today, he came back white as a sheet!

It's utterly hilarious...

[AntiLagGC8]

HybridAero said:

What I can't work out is why the wheel hp figures are so low - 259 hp atw and 341 bhp at the crank - Seems a massive difference for fwd. This rolling road 'uniquely measures drag' so could that be why the difference is so high? Last time is made 255 atw and 315 at the crank.

Edited by HybridAero on Monday 8th August 12:00

Something is very off there, surely you can't lose that much power in a FWD car. I wonder if the estimated drive train losses were set high causing a much larger crank figure?

I know with Impreza's which have a lot of drive train loss due to AWD they estimate around 18%.

[griffin dai]

HybridAero said:

Based in Nottingham but if there's a decent meet on up for going anywhere, got a few friends up there in manc as went uni there, so up there couple of times a year. Which build thread is that? Need to see it. GT30 sounds tempting.

There's a monthly Midlands meet on UKS, I think it's in Tewkesbury, I've only been to one a few years ago, decent turn out and good to catch up with a few on UKS. Take a look at the meetings section on the forum.

[AntiLagGC8]

HybridAero said:

griffin dai said:

Looking good

Your money/car mate but my cash would go on a diff instead of a big turbo and concentrate on handling mods/brakes You'll notice a hell of a difference and in reality end up with a quicker car (sub 90-100 anyway)

Yeh you're probably right, it desperately needs bigger brakes and after that, anti roll bar etc. Need a ride in a big turbo 9-5 to see what it's like as this would be a daily driver still.

I went with a twin scroll setup and some other changes in my car to try and keep lag down as much as you can with a larger turbo. It worked well although I want more power now!

[HybridAero]

AntiLagGC8 said:

Something is very off there, surely you can't lose that much power in a FWD car. I wonder if the estimated drive train losses were set high causing a much larger crank figure?

I know with Impreza's which have a lot of drive train loss due to AWD they estimate around 18%.

If you see the green line, this rolling road actually measures drag on the overrun, so there is no estimate needed. Does seem a massive difference though for fwd.

[AntiLagGC8]

HybridAero said:

AntiLagGC8 said:

Something is very off there, surely you can't lose that much power in a FWD car. I wonder if the estimated drive train losses were set high causing a much larger crank figure?

I know with Impreza's which have a lot of drive train loss due to AWD they estimate around 18%.

If you see the green line, this rolling road actually measures drag on the overrun, so there is no estimate needed. Does seem a massive difference though for fwd.

Thanks although it still appears massively out with those numbers. I wonder if its over-estimating transmission losses causing a high crank figure. I don't fully understand why those numbers are so different.

I also take dyno's with a pinch of salt (my car made 371bhp on one and 347bhp on another, I think the lower reading for my car is far more likely). I just use the same dyno as a guide for changes to the car.

[HybridAero]

AntiLagGC8 said:

Thanks although it still appears massively out with those numbers. I wonder if its over-estimating transmission losses causing a high crank figure. I don't fully understand why those numbers are so different.

I also take dyno's with a pinch of salt (my car made 371bhp on one and 347bhp on another, I think the lower reading for my car is far more likely). I just use the same dyno as a guide for changes to the car.

Been recommended http://www.noblemotorservices.co.uk by Karl at Noobtune, will give them a try, be interesting to see.

[AntiLagGC8]

HybridAero said:

AntiLagGC8 said:

Thanks although it still appears massively out with those numbers. I wonder if its over-estimating transmission losses causing a high crank figure. I don't fully understand why those numbers are so different.

I also take dyno's with a pinch of salt (my car made 371bhp on one and 347bhp on another, I think the lower reading for my car is far more likely). I just use the same dyno as a guide for changes to the car.

Been recommended http://www.noblemotorservices.co.uk by Karl at Noobtune, will give them a try, be interesting to see.

Good luck bud! It maybe worth posting this in the engineering forum if you're interested in some more educated views rather than myself. I have the most basic of understanding of this stuff even though I'm interested.

[Shadow R1]

HybridAero said:

Been recommended http://www.noblemotorservices.co.uk by Karl at Noobtune, will give them a try, be interesting to see.

Im based out of Mapperly top a few days a week.

http://www.sharkperformance.co.uk/

They are local(ish) to you and have a following in the vag world.

[HybridAero]

Shadow R1 said:

Im based out of Mapperly top a few days a week.

http://www.sharkperformance.co.uk/

They are local(ish) to you and have a following in the vag world.

Will check them out thanks, not far at all 'tis Mansfield

[Robfow]

Looks like a Maha dyno, that just seems to be how they are - one I've used a few times always gives very low wheel figures, but flywheel is always very good - cars hitting bang on factory figures

[HybridAero]

Robfow said:

Looks like a Maha dyno, that just seems to be how they are - one I've used a few times always gives very low wheel figures, but flywheel is always very good - cars hitting bang on factory figures

Could well be the case, be interesting to see what it pulls on a different type of dyno.

Need to film some acceleration runs, but don't want to spend the earth on a camera mount. My phone has a decent camera, just need a way of attaching it to the dashboard in a way that it points at the speedometer. Also need a private road!

[HybridAero]

Quick acceleration run - I'd say it feels every one of its '341.8 bhp':

https://www.youtube.com/watch?v=6UGi8QcAmJ8

Edited by HybridAero on Saturday 8th July 15:10