Group A 8v 1900 Engine Specs

[acox99 71 1 Cars]

i was planning on useing a iron block MI for a sprint/hillclimb car and wanted to run in mod production under 2000cc, wont i be able to do this with my engine? i only got it cos it was cheaper than an alloy, is there any way i can deacrese the displacent so i can compete in the series, would it just be easier to get an alloy block? what mods can you actually do, do the rules change thoughout the series's

[VisaGTi16v 1]

The rules we run to in the south east simple say for mod prod the block must look externally identical to one that was sold in the car. I thought the mi16 was but apparently not. Its close enough though that you wont be kicked out. Not sure about the 2 litre iron block one though, that may look much different. The displacement is irrelevant as you can do what you want with it although you cant go over 2 litre as that breaks another rule about being above capacity ie I cant go to the SW and run in the over 1.8 class as the Visa GTi was only sold up to 1.6 even though ive got a 1.9 in it now. Rules do change a lot throughout the country. I would suggest to download some regs for sprint entries at ones you are thinking of doing, get your license, probably best wait till january if not competing htis year? then you can go through the Blue Book which has all the rules in

[pug_ham 240 3 Cars]

A zytek programable ecu was used on the works cars

Thought so, there's a Motorla ignition system listed in the old PTS brochures but not a full management system. I have read about them using a Zytek system in the homologation papers iirc.

 

Graham.

[VisaGTi16v 1]

Asked a friend of mine who used to rally a 205 back in the 80's if he has any info

[veloce200 3]

i was planning on useing a iron block MI for a sprint/hillclimb car and wanted to run in mod production under 2000cc, wont i be able to do this with my engine? i only got it cos it was cheaper than an alloy, is there any way i can deacrese the displacent so i can compete in the series, would it just be easier to get an alloy block? what mods can you actually do, do the rules change thoughout the series's

 

 

logically you would think that no one would grumble about running cast iron instead of alloy. certainly if alloy came after iron and not in 205 then forget it ! However the book does state type and material. So technically MI16 alloy is NOT taking the piss as their is NO advantage to having MI16 block or 8v Block with MI16 head. Now logically iron block is a bummer as it's 20kg heavier. However the weight is where you want it - on the front wheels (if it was rwd it would be much more of a disadvantage) and also it means you can run 2 litre easy with more advanced later type heads. In short you can get more power, more cheaply and lay it down better - so it IS an advantage. So if I were you get alloy block or consistently finish mid table. Win all the time and someone will complain!

[VisaGTi16v 1]

Here is some info from a friend of mine who used to rally a 205 back in the mid 80's and still competes today but in a Lotus Sunbeam, he just came back from the Tour of Flanders in Belgium

 

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Gp A did not allow change of valve size, manifold size, injection system or valve lift from standard. My 1600 had about 135bhp. 1900 works cars from memory never made more than 190, if that, Longman built works cars and would give more info maybe. Probably not best choice for sprinting as more power cheaper with all the above changed??

[PumaRacing 1]

Gp A did not allow change of valve size, manifold size, injection system or valve lift from standard.

 

In which case I very much doubt they ever had more than about 170/175 true bhp. Given what's possible with a big valve head and high lift rally cam on the std injection (150 to high 150s depending on cam), you can pretty much work out what a longer duration cam would add and the smaller valves and valve lift would lose.

[VisaGTi16v 1]

Yes I mean without touching valves and ignition I cant see how they could get mega power. Of course my friend could be wrong as he is over 50 with a beard but then he did let me drive his Sunbeam at a sprint recently so im sure he at least thinks hes correct and I should give him the benefit of the doubt

 

I think a phone call to Longman as he suggested would be simplest option for the person who started the thread, forgotton now!

Edited September 13, 2006 by VisaGTi16v

[veloce200 3]

Yes I mean without touching valves and ignition I cant see how they could get mega power. Of course my friend could be wrong as he is over 50 with a beard but then he did let me drive his Sunbeam at a sprint recently so im sure he at least thinks hes correct and I should give him the benefit of the doubt

 

I think a phone call to Longman as he suggested would be simplest option for the person who started the thread, forgotton now!

 

let's not forget budgets. when large enough conventional wisdom is twisted....

[Guest Megster]

Thanks to everyone for their help on this topic.

 

I'm well tempted to look into the Mod Prod rules now - perhaps I can get away with an Mi16. Strangely, this class isn't as hottly contested in the Welsh championship - with only one really fast driver (in an Mi16 205 as it happens). I always assumed that he'd mated a valver head to the 8v bottom end, but I've never actually asked him! He's good guy too and he will tell me the truth, I'm sure.

 

As regards capacity. How many properly race tuned "2 litre" Escorts are actually two litre these days?

 

Thanks again everyone - AJ

[pug_ham 240 3 Cars]

While looking through the old PTS parts brochure I have here I did notice they sold a distributor with advance curce to suit the 7048 (max torque) cam so maybe they were all on the standard injection after all.

 

Graham.

[veloce200 3]

While looking through the old PTS parts brochure I have here I did notice they sold a distributor with advance curce to suit the 7048 (max torque) cam so maybe they were all on the standard injection after all.

 

Graham.

 

that was always my understanding. std plenum and AF meter externally at least...

[Anulfo 22]

I know this is an old thread but i couldn't help but chuckle when i saw it mentioned that somebody got 240bhp from an 8 valve engine!!!Very ambitious i would say.I think about 210bhp is absolute tops and that would be from a high budget race prepared engine which would probably have to be revved so highly to get max power that expensive rebuilds would be frequent!!!

[Batfink 201]

exactly. you are not going to get 240bhp out of your road 8v. There are a number of racecar engines that are about as far as you can push the 8v in performance. One I know of is certainly not the original capacity though

[welshpug 1,622]

Think this is one example of a Longmans engine

 

[Anulfo 22]

sounds nice!!!Was that the whirring of a dog box i heard there?