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More Torque: 2.7 eta or supercharger?
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<blockquote data-quote="Zoggee" data-source="post: 151079" data-attributes="member: 43"><p>Doc, </p><p></p><p>I suggest you pm Chris Cab E30. What he has done on his E30 is superb. Or you consult Calvin Tan. Both cars are just simply Awesonme.!!! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>If you are to use the 2.7 short block,then use the 2.5 pistons and a bigger injectors for higher compresssion. But there are downsides of the combination. moolah is one of them....you have to total rebuild from scratch.</p><p>WPyin is running on that combination. pm him for the details.</p><p></p><p>I've blown 2 units M20 2.5 engine in 1 month. Was wondering what happened.</p><p>Found out what happened. And I dicided to total the engine. COST A BOMB...!!</p><p>I spent 13K on it.</p><p></p><p>Here's my rough list...</p><p></p><p>1. HIOP Cams 280 deg. rm2.8K</p><p>2. Port & polish rm2K</p><p>3. Mustang Injectors rm1.9K</p><p>4. Bosch MAF rm 1.5K</p><p>5. Overhaul Parts( such as Rocker Arm shaft,Gaskets,Lifters,water jackets,vealve springs,engine bearing,all new hoses,Big Bore throttle body piston and the rings, connecting rods..argh..!!! too much can't remember)7+K</p><p>6. FSE adjustable for E30...tried the japanese brand but got problems.RM750</p><p>7.SMT6 piggyback RM 1.8K</p><p>8....and the list continues.... :cry: </p><p></p><p></p><p> run-in the engine, dynoed and simple tune ( still not refined) gives me 191bghp on engine at 5800rpns,140.1bhp on wheels. </p><p>253NM at 3800 rpms.a bit higher then the M54 Double vanos if I'm not mistaken.</p><p></p><p>Doc thats only for the engine....</p><p>with help from Calvin Tan and Fabian , we manage to get some refinement form the engine. A lot still can be done.but reliablility is the the main concerns.....NOW,I'm running back stock without the smt6 and went to HPC to test the engine. Superb.</p><p></p><p>the money spent dun get you near and M3 S14 torques...</p><p></p><p> I advise you either get the M50 or get the S50 conversion. ask those who have them in their engine bay...now thats worth it.</p><p></p><p>pm those Local Sifus like Calvin Tan,Alvin,Teejay,Pussy,Loneranger. me too ..</p><p>if not I suggest you go aftermarket tuners in US...they'll advised you what to do....</p><p></p><p>I've tried everything that you can think of on a M20 engine...believe me la..Stock is the best.They(BMW) optimised everything for you liao. </p><p></p><p>There's more then meets the eyes...!!!!!!!! </p><p></p><p>Nothing Personal ..ok???</p><p></p><p></p><p> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="Zoggee, post: 151079, member: 43"] Doc, I suggest you pm Chris Cab E30. What he has done on his E30 is superb. Or you consult Calvin Tan. Both cars are just simply Awesonme.!!! :) If you are to use the 2.7 short block,then use the 2.5 pistons and a bigger injectors for higher compresssion. But there are downsides of the combination. moolah is one of them....you have to total rebuild from scratch. WPyin is running on that combination. pm him for the details. I've blown 2 units M20 2.5 engine in 1 month. Was wondering what happened. Found out what happened. And I dicided to total the engine. COST A BOMB...!! I spent 13K on it. Here's my rough list... 1. HIOP Cams 280 deg. rm2.8K 2. Port & polish rm2K 3. Mustang Injectors rm1.9K 4. Bosch MAF rm 1.5K 5. Overhaul Parts( such as Rocker Arm shaft,Gaskets,Lifters,water jackets,vealve springs,engine bearing,all new hoses,Big Bore throttle body piston and the rings, connecting rods..argh..!!! too much can't remember)7+K 6. FSE adjustable for E30...tried the japanese brand but got problems.RM750 7.SMT6 piggyback RM 1.8K 8....and the list continues.... :cry: run-in the engine, dynoed and simple tune ( still not refined) gives me 191bghp on engine at 5800rpns,140.1bhp on wheels. 253NM at 3800 rpms.a bit higher then the M54 Double vanos if I'm not mistaken. Doc thats only for the engine.... with help from Calvin Tan and Fabian , we manage to get some refinement form the engine. A lot still can be done.but reliablility is the the main concerns.....NOW,I'm running back stock without the smt6 and went to HPC to test the engine. Superb. the money spent dun get you near and M3 S14 torques... I advise you either get the M50 or get the S50 conversion. ask those who have them in their engine bay...now thats worth it. pm those Local Sifus like Calvin Tan,Alvin,Teejay,Pussy,Loneranger. me too .. if not I suggest you go aftermarket tuners in US...they'll advised you what to do.... I've tried everything that you can think of on a M20 engine...believe me la..Stock is the best.They(BMW) optimised everything for you liao. There's more then meets the eyes...!!!!!!!! Nothing Personal ..ok??? :) [/QUOTE]
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