THAT Seat Ibiza (RWD,Renault engine etc)

GVK · Sep 8, 2016

Noticed a few posts on Facebook today sharing images of a white wide-bodied Ibiza, this car has been a long term project of an ex Prodrive engineer for many years now. (I'm guessing the FB pics have been plucked from his build thread)

IIRC started off a rally car build but then the MSA changed the rules allowing the use of such a 'special'. With many parts being picked from WRC, engine is from Renault ex kit car that has been turbocharged. Sequential transmission, rear diff is from a BMW.

Anyhow thread links - http://www.pistonheads.com/gassing/topic.asp?t=1334825

http://www.seatcupra.net/forums/showthread.php?t=104938

Spec wise, it's a smidge over 940kg as it sits, with a fairly trick 2l turbo engine, mounted longitudinally upfront (well, mid front really) driving back through an engine speed carbon prop to a quaiffe 6spd seq dogbox mounted under the rear floor, and finally into a BMW M diff. Suspension is WRC uprights / proflex all round, brakes are 380mm front 6 pots, and 340mm rear 4 pots. All the body work is carbon or kelvar, with custom wide arches, perspex windows, and a pretty comprehensive multipoint cage.
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There are a lot of custom electronics controlling systems on the car, which take a bit of setting up! The main engine controller is a Motec unit, and it runs my own custom systems driving:

Electronically actuated port throttle system,
High pressure (6-9bar) returnless pressure controlled fuel delivery system,
Pneumatic gear shift system for the transmission (inc flatupshift/downshiftrevmatching)
Cylinder specific, adaptive knock sensing controller,
Multirunner Crank Angle PLL'd manifold pressure sensor system
Cooling FAN speed control module for rad / IC fans
Various CAN devices for intermodule coms and I/O driving
Manifold Water injection and I/C water spray controller
CAN controller for the EHPAS system, with steering angular rate / roadspeed dependent calibration
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Liked this

I was targeting 450kW (600bhp) and 650Nm, and was quite suprise that we fairly easily exceeded the power target by some margin (480kW/644bhp) but didn't quite hit the torque number (ended up on 643Nm @ 5630rpm)

Looking at the power curve, if i dared rev it above 8200rpm there's actually possibly a bit more power to be had..... but i'm gonna revise the turbine sizes a bit and probably drop 20 or 30bhp to try to get a better, less agressive shape to the torque curve around 5krpm
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My car has 627bhp and runs out of gears at 121mph so i don't think a bit of drag is going to be an issue........
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Toyotec · Sep 8, 2016

I shared it on our FB page but excellent that you have put it here G.

GVK · Sep 8, 2016

No worries, thought people would like more details on it.

Bloody shame there's nothing showing it being used!

KeithMac · Sep 8, 2016

Looks a right piece of kit, 627bhp and just under a ton are a good combination!.

Dread to think on what he spent on the Motec software licence alone nevermind the car!.

Looks like my old Nova widebody arches on the back .

notenoughtime · Sep 9, 2016

Lovely

Nige · Sep 9, 2016

That looks like a weapon !

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THAT Seat Ibiza (RWD,Renault engine etc)

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THAT Seat Ibiza (RWD,Renault engine etc)

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