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Johan Gronberg (JG Automotive) - Opel Kadett GSi 2.1L C20XE
 

Johan's Kadett was on show at Sweden's biggest indoor car show in March 2007. The car has been built for 1/8 mile and 1/4 mile racing (dragracing)
and is street legal.

Email received from Johan, June 2007:

As I only want high peak power, this 4-1 header is a better solution for me (dragracing), it made 260bhp and 248nm with 33/29 valves.
We have only been mapping it from 6000-8500rpm because there was no time for the low
revs. (competition day after). The car feels really strong now.

I made 12.58sec with a bad 2.1sec 60 foot time (it was raining) and 181.5 km/h topspeed at 1/4mile
I am hoping for a high 11sec time with some better grip.
I have won every event except one in Sweden, the one I didn´t win was because my flywheel bolts fell off =( but its ok now again. =)

I have a movie from the event: http://www.youtube.com/watch?v=smJVlL0Iizc
and one from the dyno day: http://www.youtube.com/watch?v=QGFKScq5KO4

Johan Gronberg at Swedish Indoor Show
You can also see some more pictures of my project thread at Swedens biggest carcommunity: (it´s all written in swedish, but the pictures are free for you to use, if you want at your webpage.

http://www.zatzy.com/showthread.php?t=201705
His 2.1L C20XE has been built with our 4th upgrade taper throttle kit although Johan arranged for the headwork to be done himself. He also has a dry sump system.
Johan Gronberg engine
Information received January 2008:

Opel Kadett GSI 16v -89 (vauxhall astra mk2 gte 16v)drysumped 260bhp 248nm N/A with 33/29 valve SBD powered c20xe engine and a custommade 4-1 3stepped race header. It has a quaife close ratio striaght cut gearbox with 4.50 final gear, Dot approved "street legal" MH 205/65R13 tyres, the car is street legal (taxed and MOTed) chassis are optimized for dragracing.best times:1/8mile: 7.70sec 152km/h1/4mile: 12.25sec 185km/hincar 1

Johan's car in Sweden 1/8mile @ Malmoe (my first ride with tha car) http://www.garaget.org/video/zo3inhla2z4k

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