![]() ![]() The standard cast iron engine block is solidly constructed and can handle power levels up to 240bhp in factory tune and many owners have reported much higher power gains than that. 6 bar on most variants of this engine although the 180bhp engines run 11.6 psi from 2002. The turbo delivers a boost pressure of 8.7 psi or. The peak power band is between 20 rpm, and delivers good fuel economy as well around 34-38mpg. (Obviously with direct injection you can run much higher compression ratios, but this didn't come in until the later revisions to the more recent engines.)īore size of 81mm (3.19in) a Stroke of 86.4mm (3.40in) and a Rod Length of 144mm The compression ratio is set to 9.5:1, but, a slightly lower 9:1:1 in the 240 bhp versions (and those with the K04 turbo), which although high for a turbo gives plenty of low down torque. (The exhaust valves are somewhat larger than the intake and this intake configuration makes the engine an efficient one). The exhaust valves are larger than the intake, and having the extra intakes allow better fuel atomization and intake control depending on the throttle and load. The 20 valves are arranged with 3 intake valves and 2 exhaust valves per cylinder. The 1.8T was replaced with a 1.8/2.0 TFSi version and we have a guide that covers these and the more recent EA888 version is covered here. See our video which covers all the principles of tuning the 1.8T engine. The fact these engines can be tuned to such extremes indicates their versatility. The 1.8T also featured in Wards 10 best engines in 97 98 01 02 and 03. It often features in engine swap projects such is the versatility of this great engine block. ![]() Thankfully this is relatively rare but it does pay to know what you have before you start working on it. We have seen projects taking power on stock internals to the 500-700hp region which shows how impressive this block is.īe careful as the parts fitted to these engines did vary considerably, some buy blocks assuming forged components only to find cast parts were used. 350hp on the standard block is typically the response you'll get when you ask about safe power limits when tuned. The 1781 cubic centimeters in this 20 Valve turbocharged engine represents what must still be one of the most tunable engines around today and is found in family cars like the A3 and A4 and on sports oriented models like the TT, and the S3. I must confess I have a bias here, the 1.8T is one of my favorite engines and offers much tuning potential, and is well supported when it comes to upgrade parts. Let's see what can be done to tune the 1.8T engine, how much potential power you can extract, and which are the best mods for your tuning project. VAG 1.8T 20v Petrol engine as fitted to Volkswagen/SEAT/Audi and Skoda cars: 150-240 bhp from the factory. I don't think I've ever seen T recommend map 5 for non-ethanol running setups."The 1.8T was my first turbo engine, and one of the best." Map 5 is recommended mostly for stock turbo guys running ethanol combinations. Map 6 is also a map that supports tapering however you want it to which is huge for the stg1 and stg2 guys that have turbos that hold more boost and for longer. ![]() I can run whatever I want in map 6 and I like that flexibility versus algorithms that set that for me. My map 6 is dialed in so I just switched right over to it. I did 4 second through fourth pulls and it still felt bad after switching to it. The auto-learn runs you did were from 2000-7000rpm in 3rd gear? After doing a few solid pulls from 1500-7000 rpm in 3rd gear my car pulls like a maniac!Īfter proper dial in, I can't argue it isn't faster as it will allow a higher boost setting. I have almost always heard Terry recommend map 5. I have logged it and Map 5 is making nearly 18 psi consistently, whereas map 2 was 14 psi or whatever it is. I just have a downpipe and 94 octane and map 5 is noticeably faster than map 2. ![]()
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