Maikonics CX GTi Turbo

[marc61]

Not sure if this is of interest to anyone here, or just me reminiscing. I looked through some old CCC magazines today and found some from 1992 and 93 describing the Maikonics conversions. Performance was:

T1: 230bhp at 4250rpm, 13psi boost, 290 ft-lbs at 3500rpm.
T2: 250bhp at 4250rpm, 15psi boost, 320 ft-lbs at 3500rpm.

Think the standard one was 168bhp and 217 ft-lbs from memory.

The man himself had a more heavily modified Turbo 1 (reg C550 URE), capable of 0-60 in 6.2s, 70-100 in top in 6.9, over 155mph flat out. Wonder if that CX is still alive?!

He also converted a CX25 GTi S2 auto to turbo (reg VBD 8S), a big job at owners request. Fitted S2 intercooler and ran it at 7psi boost, 0-60 in 8.0s 135mph flat out. Wonder how long the auto gearbox lasted.

Brings back some memories! I went in that T1 once for a couple of miles. Tremendously fast, lightened flywheel made it incredibly responsive. Scruffy car but tremendous engineering - more than enough to persuade me at the time to have my T2 converted. Ah those were the days!

Marc

[captainhaddock]

You still can get your T2 converted, you know. There's a citroen garage owner doing this for customers, and built up his own to incredible performances, racing clutches I don't know. I've been following that from the start, and if I have the winning lottery ticket in my wallet, who knows! Not in the UK, I know. I might get a modern motor management in mine once which already will increase perfomance, reliability, and economy. All possible if not better on LPG.

[Duke]

Wonder how long the auto gearbox lasted.

Not long, apparently...

Wonder if that CX is still alive?!

Unfortunately not - IIRC Neil with CGAT had something to do with some of the engine parts in the end...

You still can get your T2 converted, you know. There's a citroen garage owner doing this for customers, and built up his own to incredible performances, racing clutches I don't know. I've been following that from the start, and if I have the winning lottery ticket in my wallet, who knows! Not in the UK, I know. I might get a modern motor management in mine once which already will increase perfomance, reliability, and economy. All possible if not better on LPG.

Who's this then Captain? Maikonics is no longer going and hasn't been for many years. I was in contact with Simon a few years ago and he was not interesting in doing anymore conversions. You can go down the route of KDFi or VEMS engine management systems and then have a tweakable mapping system thus removing the Bosch system which, lets face it, is a bit troublesome with the flywheel sensors etc... However there's nothing else out there that was as "simple" as the converted AEi and upgraded wastegate... KDFi and VEMS involve engine out and large modifications...

Maik' kits are very rare nowadays - there's around 10 I know of around the world (one is here in The Fens...). The original literature is an interesting read and a Maik' converted CX is a hoot...

[citroenxm]

Think the standard one was 168bhp and 217 ft-lbs from memory.

Just trivia, the S1 T1 GTi Turbo was 168bhp but the S2 GTi T2 was actually 200bhp, with a bigger turbo and an intercooler. I QUOTE Standard figures, not any modifications...

Citroen apparently never offically released T2 Turbo bhp figures, and it was left at 168bhp.

The Turbo D 2 was the Same. The Turbo 1 Diesel was 95 bhp, and the Turbo D 2 was subject to 120bhp. At the time, the Turbo 2 Diesel CX was the fastest and quickest passenger diesel on the road at the the time...

[Duke]

Just trivia, the S1 T1 GTi Turbo was 168bhp but the S2 GTi T2 was actually 200bhp, with a bigger turbo and an intercooler.

Citroen apparently never offically released T2 Turbo bhp figures, and it was left at 168bhp.

Nearly 100% correct Paul... I'll copy what I've written over on the FCF before:

Well, "unoffically" they are (T2 Quicker), as the GTi Turbo 1 and the GTi Turbo 2s both had the same quoted power output of 168BHP!

First up was the Series 1 GTi Turbo, then the Series 2 GTi Turbo and finally the Series 2 GTi Turbo 2.

The Series 2 GTi Turbo 2 has the intercooler, and slightly different pistons and compression ratios due to the intercooler. AFAIK the actual turbocharger has some differences too. Also, the CX GTi Turbo 2s have smaller cc injectors too. The GTi Turbo 1's have a low ratio gearbox, so will affect the top speed slightly but by no means are the GTi Turbo 1s a slow car though...in their day, Dad used to have 'burn-ups' along the motorways and dual carriageways with Merc 190 Cosworths and came off best. 140 MPH is easily achievable...on private land of course, officer.

The GTI Turbo 2s are a quicker car and I think that they kept the same BHP figures due to French tax laws etc. I would say that the GTi Turbo 2s were running about 180BHP standard. ALL GTi Turbos or Turbo 2s have their own personality...you will not find two a-like...some are faster than others.

[citroenxm]

Well I spoke to a CX Fanatic, who does know his T2 CX's, Fil Van Delpht, from Telford..

If anyone does know, Fil does...

But, Ill take your word for it too Franklin...you know your stuff too...

[Duke]

Oh aye we know Fil - he popped down to show us "H10" the last CX GTi T2 sold in the UK he restored. He's got a CX of ours up there ATM too... He's knows a huge amount re CXs, and XMs too...

200BHP/180BHP - all near enough the same. Who knows what they've lost over the years anyway! Saying that Fil has got a White GTi T2 that ran 190+ standard on the rollers...

[citroenxm]

Well Franklin, My 24v S1 XM is HIS old car which I bought off him years ago for a very SMALL price that Ive never seen another 24v S1 XM sell for since...

[captainhaddock]

This company, Duke:

http://www.citroenvanderlaan.nl/page.ph ... ods_stages

You'll need google translations Most of what I read about the conversions, I cannot follow....far beyond getting rid of the old Bosch system/airflow system. That I am sure of.

[Duke]

That is very interesting Captain, thanks for the link - not seen that before...

Their Stage One reads to be pretty simple with the usual small mods of Induction Kit and Dump Valve, and increasing the boost too. Can't go too mad though as it'll run flat due to it being overboosted. That was the best bit about Maikonics. Simon worked out the trick that would allow the boost to be raised and then his conversion enabled the ignition to the retarded thus not running flat tricking the AEi into thinking it wasn't overboosting... As outlined above, this raised power substantially to quoted 250BHP for the T2 and 320FT/LB Torque...

Looking at their Stage Two VEMS is introduced to the mixing pot but still with power at 215BHP... Maik' got it right with 250BHP for it's "simple" kit. Trouble with these CXs IIRC is the unique number of flywheel teeth not allowing a conventianial way to tune. Have a look here - https://plus.google.com/photos/10117619 ... 6892514065 - and you can see this chap has gone for a replacement cranksensor on the flywheel for his KDFi setup to work... Apparently in the Netherlands there are a number of CX's that run on KdFi or VEMS.

All interesting stuff!