mightymetros Posted April 16, 2005 Share Posted April 16, 2005 Ive decided to take the plunge and get a 1900 bottom end from Scholer, but im unsure what to do with the head? At the moment im running a ported, big valve vvc head (32.5mm inlet valve ,28.5mm exhaust valve) with piper exhaust cam. Throttle bodies and an Emerald. Now im still running with the vvc mechanisms and im unsure if to keep the vvc mechanism, or go for the proven 1444 cams? BTW, The engine at the moment with standard 1800 bottom end is turning out aronud 185-190bhp Basically, if i keep the vvc mechs i dont have any extra outlay, and if i go the 1444 cam rounte, i reckon im looking at £500 for the cams and conversion kit. What will the advantage and disadvantages of both be. I want the car to be able to do a reliable 6000-8000 miles a year, and still have good drivability Any opinions? Link to comment Share on other sites More sharing options...
oilyhands Posted April 16, 2005 Share Posted April 16, 2005 You are looking at a lot more then £500 for the 1444 cams, by the time you factor in blanking kit, cams, valve springs, steel caps, solid followers, shims and shimming, you will be loking at closer to £1000. going 1900 on the existing setup will gain you around 5-6% , going for 1444s will lift you to 220BHP+, more if the head is well done. Oily Link to comment Share on other sites More sharing options...
mightymetros Posted April 16, 2005 Author Share Posted April 16, 2005 Cheers Oily *thumbup* *thumbup* Completely forgot about valve springs etc 😳 😳 😳 Thats my mind made up Link to comment Share on other sites More sharing options...
ponant Posted April 21, 2005 Share Posted April 21, 2005 ok again talking HP or BHP , but what that "upgrade" will bring to torque 🤔 , as for a 1.880 or 1.9 l cant go above 192/194ft for the engine and at what rpm : low , high , or as in some vvc = all the way .. Link to comment Share on other sites More sharing options...
V7 SLR Posted April 21, 2005 Share Posted April 21, 2005 ... and if anyone understood a word of that, please offer a translation. Link to comment Share on other sites More sharing options...
Myles Posted April 21, 2005 Share Posted April 21, 2005 Makes sense to me. What torque will a 1900 VVC make - and where in the rev-range - or will it be comfy-pyjamas throughout due to the VVC fish-strainer? Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
ponant Posted April 25, 2005 Share Posted April 25, 2005 Myles thank you for being able to understand english 😬 plus you are a good teatcher... thi is exactly what l meant any [hard] facts ( numbers ) to proof the usefullnes of the "upgrade" Link to comment Share on other sites More sharing options...
oilyhands Posted April 25, 2005 Share Posted April 25, 2005 Given the same volumetrics a 1900 will make on average 5.5% more torque at any point in the rev range. However since the bore is increased by 2mm this can have an affect on the discharge co-efficient of the inlet valves, especially on a big valve head. It has been demonstrated that given like for like on the engines other factors, more than 5.5% extra torque is released. Oily Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now