JMSpeedshop ! https://jmspeedshop.com/ All about cars !! Project Builds , Car Reviews and Testdrives , all lot a technical details and info Sat, 03 Oct 2026 16:39:52 +0000 nl hourly 1 https://wordpress.org/?v=7.1.2 https://jmspeedshop.com/wp-content/uploads/2017/12/cropped-IMG_1877-32x32.jpg JMSpeedshop ! https://jmspeedshop.com/ 32 32 Jaguar XJR-S a Very Rare GT!!! https://jmspeedshop.com/2026/09/13/jaguar-xjr-s-a-very-rare-gt/ Sun, 13 Sep 2026 06:38:33 +0000 https://jmspeedshop.com/?p=3672 Jaguar XJR-S a very rare GT!! This is the top of the line of the very long production of this GT car. Build from 1975-1996 And the V12 is offcourse the model to have. The XJR-S is build from 1998-1993. Build by a newly fromed company called Jaguar Sport. Owned 50:50 by jaguar and TWR […]

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]]> BMW E36 5.0 V8 M113 Engine Swap !!! https://jmspeedshop.com/2026/09/07/bmw-e36-5-0-v8-m113-engine-swap/ Mon, 07 Sep 2026 16:09:38 +0000 https://jmspeedshop.com/?p=3655 BMW E36  5.0 V8 This is a pretty interesting one.    A few weeks ago Robby contacted me if i wanted to film his E36.  And in the beginning i though why would a BMW guy wanted me a Mercedes Guy film his car.  But im personally not really a hater and i like tuning […]

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]]> Mercedes E63 AMG W212 Sedan & combi the last big V8!!! https://jmspeedshop.com/2026/06/06/mercedes-e63-amg-w212-sedan-combi-the-last-big-v8/ Sat, 06 Jun 2026 09:47:34 +0000 https://jmspeedshop.com/?p=3622 Mercedes E63 AMG W212 Sedan & combi the last big V8!!! This is the last Big V8  or big displacement engine mercedes produced.  6209cc v8 .  Normally aspirated.   Raw power  in a big sport sedan or estate car. The M156 we now from several models from small C klasse up to the S klasse and […]

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]]> 722.6 Transmission Swap Mercedes 190 2.5D W201 https://jmspeedshop.com/2025/11/07/722-6-transmission-swap-mercedes-190-2-5d-w201/ Fri, 07 Nov 2025 14:58:32 +0000 https://jmspeedshop.com/?p=3617 722.6 Transmission Swap Mercedes 190 2.5D W201 My 2.5D had a bad transmission . This is  a 722.4  4 speed vacuum and cable controlled transmission.  I think i drove the the Car 10K km since i have it.  The guy where i bought it from mentioned that the transmission had a had a leaking gearbox […]

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]]> S124 V8 Turbo made 804HP and 1007NM on the Dyno !!! https://jmspeedshop.com/2025/10/29/s124-v8-turbo-made-804hp-and-1007nm-on-the-dyno/ Wed, 29 Oct 2025 08:35:18 +0000 https://jmspeedshop.com/?p=3604 S124 V8 Turbo made 804HP and 1007NM on the Dyno !!! So after some small street tuning with the car on ethanol blends 85% and 40%. It was time to go to the Dyno for the last time to get the final adjustements done So the car has a flexfuel system.  I had a base […]

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]]> S124 V8 Turbo 600hp+ 860nm+ driving with the new tune https://jmspeedshop.com/2025/09/02/s124-v8-turbo-600hp-860nm-driving-with-the-new-tune/ Tue, 02 Sep 2025 16:15:05 +0000 https://jmspeedshop.com/?p=3600 S124 V8 Turbo 600hp+ 860nm+ driving with the new tune I did some small adjustments here in there after the dyno tune.   Not to the fuel or timing maps there are good.  I have to do some adjustments on the idle control.  Daniel form DW Techsolutions has set up the idle control closed loop. It […]

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]]> Perform Injector leak test with Maxx ecu https://jmspeedshop.com/2025/08/29/perform-injector-leak-test-with-maxx-ecu/ Fri, 29 Aug 2025 14:25:40 +0000 https://jmspeedshop.com/?p=3597 After last weeks dyno session i did some driving,  Also doing some adjustments on the idle control.  Daniel from DW techsolution put the idle control in closed loop. Also put on the idle ignition lock function so it will control idle with the throttle body in combination with the ignition advance and retard When the […]

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]]> S124 V8 turbo Massive power on Regular fuel! Dyno Day at DW Techsolution https://jmspeedshop.com/2025/08/21/s124-v8-turbo-massive-power-on-regular-fuel-dyno-day-at-dw-techsolution/ Thu, 21 Aug 2025 17:09:57 +0000 https://jmspeedshop.com/?p=3590 S124 V8 turbo Massive power on regular fuel! Dyno Day at DW Techsolution So this was a very interesting day to say the least.   I did so road tuning the last 2 months. And got to a decent boost level and rpm level.  The car was feeling already prett good .  i made max 5400rpm […]

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]]> Mercedes 190 2.5D W201 Review & Testdrive https://jmspeedshop.com/2025/06/27/mercedes-190-2-5d-w201-review-testdrive/ Fri, 27 Jun 2025 13:11:37 +0000 https://jmspeedshop.com/?p=3577 Mercedes 190 2.5D W201 Review & Testdrive Today i drive my own car for the review.  This is the car i bought about 2-3 months ago.  After i did a video of the S124 250D from henk grooten last year i start looking for a 2.5 D. But because i already have a W124 i […]

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]]> S124 V8 Turbo street tuning up to 0,8bar https://jmspeedshop.com/2025/06/25/s124-v8-turbo-street-tuning-up-to-08bar/ Wed, 25 Jun 2025 16:41:08 +0000 https://jmspeedshop.com/?p=3574 S124 V8 street tuning up to 0,8bar After the last time when i did some heat cycles, i have driven the car now a few times and did some street tuning and got the fuel map filled in. according to the new flow.  This was much more different in the regions where i had no […]

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]]> 1e start-up !!!! M113k heads New turbo system https://jmspeedshop.com/2025/05/20/1e-start-up-m113k-heads-new-turbo-system/ Tue, 20 May 2025 18:30:59 +0000 https://jmspeedshop.com/?p=3570 1e start-up !!!! M113k heads New turbo system after almost 5 months no post.  The engine is in the car and it is running So what did i do in the last 5 months.   i had also other very busy things  and so setbacks  with this engine .   i had issues with leaking oil lines […]

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]]> New turbo oil drain. Engine mods done for big dowpipe. S124 V8 Turbo ! https://jmspeedshop.com/2025/01/26/new-turbo-oil-drain-engine-mods-done-for-big-dowpipe-s124-v8-turbo/ Sun, 26 Jan 2025 15:26:32 +0000 https://jmspeedshop.com/?p=3560 New turbo oil drain. Engine mods done for big dowpipe. S124 V8 Turbo ! It is going a little slow but im getting there eventually.   i needed to find a way to get the oil drain to the sump and with a route that will flow good enough. I wanted to use the old positions […]

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