50mm Inlet

My 50mm item is now coming off the car, GVKs test prove that its not worth it on that state of tune.
42mm for me now , handy i have a polished one in the garage. I agree that really we need same day and sam engine temp and fuel to test, but without testing on different heads and different cams e.g. A car like IanBs or Grahams i am not sure if we can apply the same results to any car.

Varible inlet sounds interesting but if the 50mm only gains 1 bhp on GVKs car is it worth bothering to make one
Also where abouts in the rev range do you want it to switch over looking at the graphs all i can see is 6200 which makes it pointless. ( I am not exactly sure how the schrick items works tho )

Thats not to say that if there is any modern cars that could be robbed for donur parts they could perhaps work better , but due to pulse tuning it could be hit and miss. Wonder if there is any honda or ford stuff that could fit ?

 

chrismc vs ianb (on the same day)


Edited by: GVK

 

And the torque

 

Agreed Tris, maybe a small manifold would kill engines with the big Schrick cams.

 

some good torque on chrismcs, gary plot yours or tubs on there too please

 

A reg plate is Graham (ex TSR)
LET is Tub
GVK is me
CFJ is IanB

Bit muddled but you get the idea

 

what the hell is in that A reg

 

Just a little question. I don't know how the K-JET can de-tune, so, is it possible that your car got out of tune between RR? How much time has it passed by!?
The air filter full of dirt could do a nasty side effect, and some other things, right?

 

Thats a 2 mile drive to my bros garage where the car is It was much easier just to ask
Edited by: DuBDuDe

 

im defo going to fit a 42mm this week on mine (yes the carbs are off)

 

did you run it at stealth velly

 

no mate...but i will be sorting out the 16v shoot-out this week so we can all get together 4 a laugh

 

From the plots i say the ABF with 50mm, K-Jet and 183bhp is the best combo out there

 

does look healthy tubs

more info on the A reg please, has he turned the NOS on at 3.5k?

 

It is a massive kick up the arse ain't it Prof!

Anyway;

Tub - Blue
IanB - Green





Must get these ABF cams back in - sure it'll benefit from them.
Edited by: Tubthumped

 

Prof, as far as I know the A reg was a 2 litre 9A to quote Graham "An old scrap block" 276s, 50mm , TSR 4 branch, a head that had been skimmed "a few times" No doubt it had a TSR 'thing' fitted too

Tub, all very well comparing these graphs and coming up with the assumption that one set up is better than the other, but lets face it, if one car was beside the other, on the back straight at Donny, there's going to be very little in it.
Edited by: GVK

 

And I still need to know why/how IanBs has a really smooth idle on the those Schrick 268/276
Edited by: GVK

 

HiDro, I work in a garage and checked the mixture and timing last week and was as it should be.

 

No - mine has short gearbox

 

Velly, been thinking about this - we need to get all these 210bhp valvers on carbs that have been spoken about recently to the next 16v day

So if anyone knows of anyone with a really hi-spec valver, look out for this upcoming 16v rr day...