Chino Posted March 7, 2004 Share Posted March 7, 2004 hey i have like everything that is needed for BIG power except for turbs and internals i just wanted to know if i can run 265rwkw at 1 bar with standard internals and a sweet tune.... and what are your guys ideas on how much tha standard internals can handle over a period of time... Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/ Share on other sites More sharing options...
B-Man Posted March 7, 2004 Share Posted March 7, 2004 Should be able to , but depends on tune. Steve is runnung over 300wrkw on standard (decompressed) internals ! Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-714785 Share on other sites More sharing options...
rob77 Posted March 7, 2004 Share Posted March 7, 2004 Yep would have to be a very basic tune, nothing too agressive with the timing. However your engine must be in excellent condition to start with. Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-714855 Share on other sites More sharing options...
EnricoPalazzo Posted March 7, 2004 Share Posted March 7, 2004 whatever do u mean by basic. If u want to run the power relaibly, i would suggest nothing over a 12.1 afr ratio, and maybe add a little toluene when u are gonna punish the car. THen the car should be fine. However if the car does run lean, it is very easy to crack ringlands which many forum members have lately. good luck. Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-714889 Share on other sites More sharing options...
rob77 Posted March 7, 2004 Share Posted March 7, 2004 By basic I mean dont have an aggressive timing curve. Too much advanced timing will lead to detonation and cracked ringlands Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-714919 Share on other sites More sharing options...
Cubes Posted March 8, 2004 Share Posted March 8, 2004 Realistically how much power do you gain by running a 12:1 afr over a 11-11.5:1afr. 10-15rwkw?!? Bugger all. The extra fuel helps things stay just that little bit cooler. Keeping the combustion temps cooler prevents detonation (cracked ring lands). I have no idea when it comes to tuning. From what I have seen the stock RB25DET's tend to crack ring lands up around the 250rwkw+ mark. If It was my car running that power I would ask for a slightly richer afr. 11-11.5:1 Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-715840 Share on other sites More sharing options...
Steve Posted March 8, 2004 Share Posted March 8, 2004 1 Bar is nothing for the stock internals even at stock CR, 265 is fine too. Merli was running more boost and more power with totally stock internals for some time without dramas. It all depends on the tune, you can destroy stock internals with alot less than 265rwkw. I would highly recommend you dont take any short cuts though, ie, do your injectors! Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-715977 Share on other sites More sharing options...
Chino Posted March 8, 2004 Author Share Posted March 8, 2004 steve i have 550cc injectors a greddy plenum and throttlebody and bosh motorsport fuel pump that should be suffice yer is there anything i could be missin? Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-716334 Share on other sites More sharing options...
Steve Posted March 8, 2004 Share Posted March 8, 2004 sounds good, make sure you have a good intercooler (no doubt you already have one), and good management. A conservative tune doesnt mean you wont have power. Hopefully your tuner will go for around 11.5/6 AFratios at peak torque, and 12s thereafter. You wont know for sure until you get the turbo fitted and on the dyno for a tune - this seems to be where gremlins will raise their head in the first instance, then on the road, until you have them all ironed out. There are so many variables, it would be near impossible to highlight them all. I have found the issues I have had, others havent. and vice vesa. Timing is another matter. If you have a power fc, you can actually make correction across the range when driving should you run into trouble. If you detect detonation on the street, just pull 1 deg of timing across the range, and monitor closely. I deg seems to make a huge difference to knock when you are at the threshold where the power fc starts to warn of problems. I have managed to keep my engine in one peice with over 300kw on stock internals with just a head gasket to drop CR to 8.6:1 - but I am running around 1.5 bar and up to 1.7 bar regularly. Best advice I can probably give is look at what they do in japan, then copy it exactly, without taking any shortcuts - they have been tuning these engines for so much longer than in Aust, and they tend to perfect things to a fine art. All the R&D has been done by them - with proven results. What other mods have you got? what turbo are you running? what fuel are you using? Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-716604 Share on other sites More sharing options...
Chino Posted March 9, 2004 Author Share Posted March 9, 2004 i only can use 96 octane unfortunately due to my location so i know tha tune will loose me power which im not worried and i will be using probably a gt28r my guess but at the moment its a shit turbz t04e i think im not evun sure hey... and yer i got a ****in huge ARC cooler Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-717045 Share on other sites More sharing options...
benm Posted March 9, 2004 Share Posted March 9, 2004 96 Octane? Ouch! Does an RB25DET even "run" on 96 Octane? Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-717254 Share on other sites More sharing options...
rob77 Posted March 9, 2004 Share Posted March 9, 2004 It will run, just probably detonate easier than normal... it wont be good for it at any rate. Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-717427 Share on other sites More sharing options...
Steve Posted March 9, 2004 Share Posted March 9, 2004 Hmm, 96 ron, that doesnt make life too easy. Do you know anyone up that way that works at the airport, or anyone on a station that runs choppers? avgas will make your life alot easier:D Link to comment https://www.sau.com.au/forums/topic/35812-standard-internals-hp/#findComment-717470 Share on other sites More sharing options...
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