colin5577 Posted June 30, 2003 Share Posted June 30, 2003 SLR Tuning For use at the Nurburgring, and at higher altitudes generally, is an Emerald ECU the be-all and end-all solution? Are there any other benefits to the Emerald i.e. better running and an increase in BHP? Or is there an alternative mechanical solution that does not perhaps require so much fiddling around? I've been told that the Emerald ECUs whilst easy to fit, take ages to set up. Any advice and or suggestions would be appreciated. Link to comment Share on other sites More sharing options...
V7 SLR Posted June 30, 2003 Share Posted June 30, 2003 Best thing you can do to a stock SLR engine is the DVAPower VHPD driveability kit. If it doesn't come with the new baro sensor, request that separately. The ECU and new cam verniers will bring forth a marked increase in throttle response, sort of like adding another engine in. 😬 I'm a very satisfied customer. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
colin5577 Posted June 30, 2003 Author Share Posted June 30, 2003 Thanks. I've left a message on their number. Is your car any quicker with the kit? Although it is obviously more responsive, is it actually quicker? Link to comment Share on other sites More sharing options...
scooby dooby doo Posted June 30, 2003 Share Posted June 30, 2003 the emerald will allow you to set the engine up so it works properly under all circumstances. the std ECU is not too bad for full throttle work (I believe) but you're not actually at full throttle that often.... HOOPY R706KGU Hoopylight R Link to comment Share on other sites More sharing options...
V7 SLR Posted June 30, 2003 Share Posted June 30, 2003 "Quick" is defined by power and whether you have a screen or not. With a screen you'll need more power to achieve maximum revs, hence maximum speed. A stock SLR puts out about 190bhp which is not enough to push a screened car to maximum revs in 6th. With the driveability kit mine achieved 200bhp, which is still far short of being able to hit max speed/max revs. I now have one of DVAPower's extensive engine tunes. Others with a similar tune to mine achieved 230-240bhp. Mine hasn't been tested since correting all the issues I had (nothing to do with DVAPower - Dave did the work but I assembled the engine, and buggered up the cam timing). Since correcting the cam timing mine has leapt forward. I still think it is a little way off achieving max revs/speed but it'll now go faster than I can find a straight enough piece of track to test it on. If you haven't got a screen, you may already run out of revs with 190bhp. Acceleration in mine is breathtaking, but it has been ever since I went for the driveability kit. The driveability kit definitely increased my acceleration. Subjective claim though. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
colin5577 Posted June 30, 2003 Author Share Posted June 30, 2003 Thanks for the suggextions. I've just spoken to Dave Andrews, and he'll be taking a look at the car next week with a view to getting it sorted. In terms of what was mentioned regarding "extensive tuning" - out of curiosity - what did you have done? And when I get to Dave's workshop, are there any things I should remember to ask for? Link to comment Share on other sites More sharing options...
V7 SLR Posted June 30, 2003 Share Posted June 30, 2003 Dave's workshop is his house. 😬 I couldn't advise you with regards to other aspects. Dave knows a gadzillion times more things about my engine than I do... and I'm pretty well informed. I've had the following done: *arrowright*Full porting of the VHPD head... to "silly" spec. They don't come better. *arrowright*1mm bigger valves all round. *arrowright*1227 cams and double springs *arrowright*cam verniers (which is what you'll get with the driveability kit) *arrowright*Direct to head throttle bodies. The ones you've got are OK, but they place the throttle plate quite a distance from the head. Reduces transients and makes it harder to engineer a decent idle. [outrageous unsubstantiated claim]A sprinkle of magic dust to make mine fastest in the world, especially faster than Alex Wong's Vx[/outrageous unsubstantiated claim] You might want to ask Dave if he can supply the baro sensor if you think you'll have altitude problems. I got mine directly from Emerald but Dave's an "agent" so he might be able to get it for you. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
tom7 Posted June 30, 2003 Share Posted June 30, 2003 Nig, with all that spec I am even more pleased to have stayed right behind you during our little blast... and with a five speed box! No hijack intended Colin, but I am also a satisfied customer of DVA Link to comment Share on other sites More sharing options...
colin5577 Posted June 30, 2003 Author Share Posted June 30, 2003 Thanks a million for the feedback, guys. Truth be told, I'll be happy with the 190bhp - provided I get most of it consistently around the 'Ring. My last SLR was like Jeckyl and Hyde there, and despite being rediculously quick and well sorted under 'normal' usage (though surely the 'Ring IS normal usage), I had to hang on tight at the exit of some of the Nordschleif bends in case another 20 BHP suddenly arrived from nowhere, as it was wont to do. Link to comment Share on other sites More sharing options...
V7 SLR Posted July 1, 2003 Share Posted July 1, 2003 Tom, remember I'm on the wrong map... 😬 Should be pretty impressive once I get it mapped properly now that I've got the cam timing right. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
tom7 Posted July 1, 2003 Share Posted July 1, 2003 You're right Nig, I'd forgotten that As much as I like my new found poke, you should always leave me wishing for another 30bhp or less 40kg 😬 Are you planning to get it done before your next tour? I'll look forward to that result. Tom Link to comment Share on other sites More sharing options...
V7 SLR Posted July 1, 2003 Share Posted July 1, 2003 It'll have to remain the same for a while I'm afraid. I can't really afford another session, but I may find the time and money towards the end of the year. Worcs L7 club joint AO.//Membership No. 4379//Azure Blue SLR No. 0077//Se7ens List Tours Link to comment Share on other sites More sharing options...
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