Saxo Engine/Performance If you're interested in tuning Saxo engines, or if you need to know something which is engine related... this is the place for you. |
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10th August 2012, 22:04
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#61
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L-plater
Join Date: Jan 2012
Location: Watford
Posts: 49
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Before Remap
After Remap
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10th August 2012, 22:10
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#62
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L-plater
Join Date: Jan 2012
Location: Watford
Posts: 49
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Forgot to mention, the car is Smart Roadster with Citroen C2 VTR Engine.
4 in 1 manifold,
Kent pt50 cams,
C2 VTS Inlet
Tune 4 Performance, Watford
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28th September 2012, 04:10
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#63
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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TU5J4
VF35 turbo
C2 inlet
Pugsport cams (suspected blow-by)
KMS ECU (mild map)
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28th September 2012, 04:11
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#64
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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Comparison of some select graphs in this thread:
Interesting how the spool time of the VF35 compares to the disco biscuit.
Can also see where the cams come into play over the standard setup.
Last edited by e8_pqck; 28th September 2012 at 04:32.
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28th September 2012, 08:04
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#65
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Super Moderator
Join Date: Nov 2009
Location: Cambridge(ish), UK.
Posts: 10,581
Car(s): BMW 5x M50d.
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Quote:
Originally Posted by e8_pqck
Comparison of some select graphs in this thread:
Interesting how the spool time of the VF35 compares to the disco biscuit.
Can also see where the cams come into play over the standard setup.
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Excellent graph
One small note there though (the comparison of the VF35 Vs. GT28) is was everything else equal? The pipework same size? Was the VF35 on the standard inlet, and with what cams?
I've got a couple of old graphs I'll post up if I can find em just to throw some more boost into the mix.
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28th September 2012, 12:05
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#66
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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Yep, there is a host of difference with each setup that can change things, however for comparisons it is all we have.
Interestingly, most turbo applications make peak power well under 7000rpm so the forged rods don't really come into play.
i have added a few more dyno plots to the graph:
Last edited by e8_pqck; 28th September 2012 at 18:59.
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27th October 2012, 23:37
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#67
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Infrequent Poster
Join Date: Feb 2012
Location: New Ross
Posts: 202
Car(s): Saxo VTS/Xantia HDI
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fairly standard, just Ecosse enclosed induction kit and decat
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28th October 2012, 00:44
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#68
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Super Moderator
Join Date: Nov 2009
Location: Cambridge(ish), UK.
Posts: 10,581
Car(s): BMW 5x M50d.
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Am I reading that right? 42% transmission losses??
Last edited by Ross; 28th October 2012 at 00:46.
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28th October 2012, 01:19
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#69
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Infrequent Poster
Join Date: Oct 2012
Location: Cearphilly (Area)
Posts: 218
Car(s): Saxo Ph2 Furio, Fiesta Mk4 1.7, Astra H 1.8 SRI
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Quote:
Originally Posted by Ross
Am I reading that right? 42% transmission losses??
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The 138.3bhp is just the correction and it the bhp on the day its just a gusse at what it would be is the temp ect was perfect.
The 132.5bhp is the gussed flywheel bhp (no rolling road can tell you the correct flywheel bhp thay just gusse)
The 93.7bhp is the bhp at the wheels (thats what it really has)
The 38.8bhp is the gussed trans loss from wheel drag on the rollers (so add this and the reall wheel bhp and you get the calulated flywheel bhp but its not correct)
And the lb/ft 124.1 i couldnt tell you what that is for wheels flywheel or with the correction (never really asked about it before lol)
the loss is roughly from a quick look is 29.5%
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7th November 2012, 22:08
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#70
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Established Member
Join Date: Jan 2012
Location: south essex!!
Posts: 2,442
Car(s): posi blue vtrs race car
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Has anyone got one of a std 100bhp vtr?
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7th November 2012, 22:55
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#71
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Infrequent Poster
Join Date: Mar 2011
Posts: 136
Car(s): Peugeot 106 Rallye Turbo 385bhp
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Peugeot 106 Rallye S2 Turbo J4 - 335bhp atw
Audi S3 8L Stage 2 Atspeed Remap - Before 180bhp atw - After 245bhp atw
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19th November 2012, 20:13
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#72
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Super Moderator
Join Date: Nov 2009
Location: Cambridge(ish), UK.
Posts: 10,581
Car(s): BMW 5x M50d.
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Quote:
Originally Posted by Old_School_Saxo
the loss is roughly from a quick look is 29.5%
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And that seems to be the norm nowadays apparently...
I would estimate the atf figure to be closer to 115bhp.
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19th November 2012, 20:16
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#73
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Saxperience Hardcore!
Join Date: Oct 2008
Location: Birtley
Posts: 22,253
Car(s): VTR Turbo, 106 xsi track slag, Transit recovery, B
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29.5 is high even for today's standards
__________________
Quote:
Originally Posted by Stissy
EDIT: i give up on you.
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Quote:
Originally Posted by Giraffe
FUCK YES. I won on the internet.
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19th November 2012, 20:30
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#74
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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20% max on a FWD really.
Why do brits even bother with flywheel figure - the only figure that counts is wheel power, all the US forums quote WHP on their printouts.
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20th November 2012, 10:43
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#75
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Saxperience Post Whore
Join Date: Dec 2002
Location: United Kingdom
Posts: 8,390
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that torque curve is beefed
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25th November 2012, 19:36
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#76
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Saxperience Forum Bum
Join Date: Nov 2004
Location: Gosport
Posts: 3,140
Car(s): saxo VTR, Clio 1.2 turbo, prious, Kawasaki 363 nin
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__________________
throttle bodies are best we all know it....
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14th April 2013, 09:19
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#77
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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ok - added Ropers to the comparison graph - Sonny's Owen developments HTA is proving hard to beat on paper - wonder how it translates in the real world!
GT2860HTA - Sonny
VF35 - Me!
GT2860 - Ross
GTX2867R - Roper
T34 - Martin (Tweeqd)
GT30 - Ross
Cammed VTS for comparison!
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14th April 2013, 12:55
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#78
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Saxperience Post Whore
Join Date: Oct 2005
Location: Sydney
Posts: 8,525
Car(s): Mango Westcoast
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dyno comparison graph needs proper mans RPM
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14th April 2013, 13:42
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#79
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Saxperience Forum Bum
Join Date: Aug 2010
Location: Midlands
Posts: 2,530
Car(s): AX 16v Turbo
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Quote:
Originally Posted by jpsaxo
dyno comparison graph needs proper mans RPM
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Is your dyno chart on here? - i will see how it compares.
In the real worldn power doesn't translate into better lap times. All the vids i've seen of Sandy's engines has me very impressed, there was one of a 106 all over a 450bhp turbo cupra!
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14th April 2013, 14:01
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#80
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Saxperience Hardcore!
Join Date: Mar 2005
Location: Pompey/Darlo
Posts: 31,546
Car(s): MK1 - 1.1 Animal
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So went up for just a service, had a cheeky power run, this is what we found
So said I could get a remap there and then, only shit thing was shell garage was closed so filled on 95 Ron. Got this...
Going to go back in summer get it done on v power, said easy get 400/400
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