4.2 CWP

[slatesmate]

Does the standard F10 gearbox have a 4.2 CWP. Also what gearboxes have the 4.53. I have a F13cr at minit and think it has a 3.9 is this correct

[Stuart]

some F10s have a 4.18 FD

cant remember what has the 4.53 (apparently a daewoo common part)

ive recently got hold of a 4.29 (allegedly from some corsa box)

you should ahve a 3.74 FD in the F13cr

[j1400]

4.29 :o have you counted the teeth to see if that right?? sounds an odd size to get?

[Stuart]

duh

i am unfortunate with the intimate knowledge of the small block gearboxes so i know its an odd ratio, but i had the teeth counted by the seller, and my dad, then myslef once i got back to the uk. it is indeed a 4.29, EPC shows it to be from some late 90's corsa box.

[slatesmate]

any idea of the best place to get hold of 1. or do i have to buy a hole f10 gearbox to get the 4.2 CWP. and will it make much diff as i do have the 3.74 set up

[Stuart]

in an F13cr box changing from a 3.74 to a 4.18 (4.2) FD you should see approx 0.2-4 second off a 1/4 time and approx 5% less top end speed


also makes the car more drivealbe in all gears, but increases the chance of wheel spin off the line in 1st.

[slatesmate]

do you recon a 4.53 would be over the top. i only like acceleration. have you got any 4.2 or 4.53 cwp setups for sale

[Stuart]

a 4.53 would be a little silly yes

no i dont ahve any FD's for sale.

there are a fair few people on the look out for one. so if you see one, get it ASAP lol

[Snowface]

how do you work out the final drive from the nu,ber of teeth then? is there a formula or is it simple?

[j1400]

you count the crown wheel (big one) and the pinion (small one) then divide the big number by the small one to give you a whaterver:1 ratio.

I have a 4.18 in my room, haven't fitted it yet. so I can't report on it, but from modelling what it will be like, I expect about 10% more torque at the wheels, and with a 7750 max rpm I'm still gonan go faster in each gear than std engien and final. but at the mo I can do abotu 67 in 2nd so I''m not too bothered.
I am considering a 4.53 but I think on track I'll be welll on the limiter on the end of any straight.
I'm intersted in the 4.3 though, how did you trakc it down maybe be a better trade off.

[Stuart]

out of intrest what modelling process did you use? a straight forward excell sheet or a bit mroe in depth than that? :)

[j1400]

I did a staright forward excel sheet, but once I've had the car mapped and know the torque curve and had it weighed then I will get a friend to write programe to model it better, because at the moment I don't have enough info to model it too accurate, all a bit rustic if you get me.
James

[mikeoxford]

i run a 4.18

good stuff :+:

i went from a WR gearbox.

to a F13 casette with 4.18 all in one go.

as cambridge said.... car becomes so much more fun!!!!

[j1400]

Mike will you be running at the pod in the summer?? Be good to compare the car up the strip, you're runngin a T40 1.6 8v aren't you?
James

[mikeoxford]

Mike will you be running at the pod in the summer?? Be good to compare the car up the strip, you're runngin a T40 1.6 8v aren't you?
James

i sure will be 8)

i wont be expecting miracles though.

i think 16 seconds is possible.....

anything below for me will be a bonus.

[j1400]

I want a 14.5 before I'm happy, but I expect to run around the 15 mark while I'm still paying with the car. can't wait for the summer once it's back together again.

[Jim]

I wont be expecting miracles though.

i think 16 seconds is possible.....

anything below for me will be a bonus.

16 seconds! :o I ran 15.2 and you're engine should be putting out a good 10-15bhp more than what mine was. Also, you'll be running 14" wheel's I believe? I'd be very dissapointed if you didn't get 15 seconds flat or less. I had the 3.74FD too, so really Mike you should annihalte my time and be close to Dan's time of 14.9

Jim

[j1400]

Any playing it down gen??

[mikeoxford]

I wont be expecting miracles though.

i think 16 seconds is possible.....

anything below for me will be a bonus.

16 seconds! :o I ran 15.2 and you're engine should be putting out a good 10-15bhp more than what mine was. Also, you'll be running 14" wheel's I believe? I'd be very dissapointed if you didn't get 15 seconds flat or less. I had the 3.74FD too, so really Mike you should annihalte my time and be close to Dan's time of 14.9

Jim

well, wether the car is up to the job is neither here or there :lol: its more a case of its driver. i think the car is more than capable of hitting the 15s. Just dont know what im capable of. spose with practice itll come.....

[j1400]

True but you can guestimate the time you'll get, although miles car pulled a 14.01 near the end of last year :o not too shabby, esp because his previous fastest wast 14.4, so this give me hope what well run can be in the mid 14's.
What cam are you runnign? expected out put mike? why not use a mappable ign system, MBE is only a few hundred, give more power and you get the shift light, limiter function's and rather nice is the data logging too.

[Jim]

j1400, is your car on carbs or throttle bodies? Miles ran 14.01 in a 1.6 16v on throttle bodies. The fastest 1.4 that i know of is CP's sport. It ran a 14.9.

Mike, stop being all modest. If you cant driv3e properly, then go and get yourself a diesel :P

We know your plans for the pod. Stripped out, small wheels, going on a diet, etc. We will be watching you, muhahahaahah :twisted:

Jim

[mikeoxford]

True but you can guestimate the time you'll get, although miles car pulled a 14.01 near the end of last year :o not too shabby, esp because his previous fastest wast 14.4, so this give me hope what well run can be in the mid 14's.
What cam are you runnign? expected out put mike? why not use a mappable ign system, MBE is only a few hundred, give more power and you get the shift light, limiter function's and rather nice is the data logging too.

Kent AST 2.

i did consider mapable ignition. but i didnt know what my plans were after this engine. wether to keep it or when i can afford insurance to swap it.....

[j1400]

Hi Jim, I run a 1.4 16V on Tb's, CP's Sccr cluster is a hinderance at the pod as first gear is soo long, I'm not goign to have that issue.
but we'll see how the car develops once it's back together again. As I'm rebuilding the engine at the mo to eek more go out of it.

Mike, mappable system can often be upgraded to full injection (e.g emerald which I run) and that's universal so can be tacked ot any car in the furture, so works out better in the long run imo, but it depends what you want to do in the future.

James

[mikeoxford]

j1400, is your car on carbs or throttle bodies? Miles ran 14.01 in a 1.6 16v on throttle bodies. The fastest 1.4 that i know of is CP's sport. It ran a 14.9.

Mike, stop being all modest. If you cant driv3e properly, then go and get yourself a diesel :P

We know your plans for the pod. Stripped out, small wheels, going on a diet, etc. We will be watching you, muhahahaahah :twisted:

Jim

:lol: diet....? didnt know that came into the handicap system :lol:

[benji]

mike is your set-up good for a 1400? or should i be looking at something different

[Stuart]

its set up terribly for a 1400 lol

but since its a 1650 thats a good thing

[benji]

i meant would his gearbox set-up work well on a 1400 :roll:

[Stuart]

a gearbox setup of similar ilk will be fitted to a 1200 ;)


its a godo setup for acceleration etc, but a bit slack on top speed etc.

[mikeoxford]

a gearbox setup of similar ilk will be fitted to a 1200 ;)


its a godo setup for acceleration etc, but a bit slack on top speed etc.

id agree totally.

with my rev limiter fitted now and the gearbox the way it is, i will top out at 110 MPH

which dosent bother me in the slightest - i like the races away from the lights and pod - not intrested in high speed shit on motorways

[benji]

i have a 1200 box on my 1400. it will do 110.

[Stuart]

mikes set his rev limiter tooooooo low, you should do 110mph minimum and then limit :p

[mikeoxford]

mikes set his rev limiter tooooooo low, you should do 110mph minimum and then limit :p

i typed my post wrong :lol:

edited to 110 :D

right now im limited to about 40 mph :lol:

[j1400]

110mph :o that all?? What limit do you guys have?? I run up to 7750 on my 14XE so I will hit 135@7.5k cause at the mo I could do a whopping 151 if I could actually get to the limiter!!
The 4.29 does interst me as it's get me a better accel and a less silly top end.
Anyone intersted in a trip the nurberg (sp?) rin gin german i the summer, August some time?

[Snowface]

put your 1400 16v up as a feature on this site. I'm interested in seeing it as others are i'm sure.

[mikeyredtop]

the fd of 1.29 is found in corsas, (epc) also 4.53....
im running a cr 3.94 diff... standard in most sri's...
ive got 2 4,18 diffs but dont really want my car off the road, im after a doner box to play with, ive got a f13 wr but that will be a waste...

[mikeoxford]

110mph :o that all?? What limit do you guys have?? I run up to 7750 on my 14XE so I will hit 135@7.5k cause at the mo I could do a whopping 151 if I could actually get to the limiter!!
The 4.29 does interst me as it's get me a better accel and a less silly top end.
Anyone intersted in a trip the nurberg (sp?) rin gin german i the summer, August some time?

with an f13 CR cluster. 4.18 FD my engine would be capable of 113.89MPH at 6500 RPM

[Jim]

ive got 2 4.18 diffs but dont really want my car off the road, im after a doner box to play with, ive got a f13 wr but that will be a waste...

when you say 4.18 diff, do you mean the 4.18 CWP? If so, do you want to sell one of them?

Jim

[j1400]

I'll get a feature up on it, but I'm in the middle of it's second rebuild. and is getting more go out the engine, bigger brakes and 15's as with 14s I found th eigh(ish) sidewall to reduce cornering perf too much, plus I can jump to 285mm rotors instead of the 247mm my wilwoods are currently rammed in to. I'll get the photo's together, feature going up in about late June.

Mike why such a low rev limit? is it not on ARP's?? surely you are loosing out on the power potential??

[Snowface]

is it a C14XE or X14XE or even Z14XE? What sorta power is it producing?
110+?

[mikeoxford]

Mike why such a low rev limit? is it not on ARP's?? surely you are loosing out on the power potential??

my peak power is at 6158 RPM

so i dont need to take it much higher.

i anticipate i will set my rev limiter to 6500 RPM maybe 6.6

and set the shift point to 6200 RPM

having calculated my gear changes etc, itll drop me down to approx 4000 RPM on the first and second change - which is right where my torque curve levels out - my torque curve rises from nothin to 4000 rpm, then continues in a straight(ish) line until 6k

as long as i keep on the power after 4k - that should get best results.

on the day in the summer when im down pod though no doubt ill drive as i feel and probly through the shift light etc :lol:

[benji]

you just got backfrom the pub aswell then mike?

any ideas on a sticking t40's linkage? i though i'd snapped the cable bit itwas the linking jamming. will have a look in the morning when i can see.

[mikeoxford]

you just got backfrom the pub aswell then mike?

any ideas on a sticking t40's linkage? i though i'd snapped the cable bit itwas the linking jamming. will have a look in the morning when i can see.

:| pub? eh? havent drank for at least 3 weeks, after an "incident" lol

try a stronger throttle return spring on the linkages

[mikeyredtop]

ive got 2 4.18 diffs but dont really want my car off the road, im after a doner box to play with, ive got a f13 wr but that will be a waste...

when you say 4.18 diff, do you mean the 4.18 CWP? If so, do you want to sell one of them?

Jim

they were in the 4 sale section 4 ages, they are comlete f10 gearboxes out of 1.2i's, they are useless apart from the 4.18 fd ratio, and when i said diff i meant final drive...i wanna keep one for my self and ile sell the other of course, u could have the whole box or just the 2 cogs themselves.

[Snowface]

i now this isn't the for sale section, but what sorta price do 4.18's go for? ?10?

I'm happy with my 3.94 at moment. Might consider 4.18 in future.

Will putting 4.18 on an F10/5 be worse than on an F13 CR?

[mikeyredtop]

i think a bit more than a tenner, im running a 3.94 on my c16se gsi and its great but ive had a lot of ppl say good things about the 4.18...

[Stuart]

i paid ?38 for my 4.29, which was a reasonable price imo.

Mike, just because you peak at a certain rpm, it dosent mean that you cant drive beyond that and get results.

youve got the limiter set to more or less standard gte/gsi settings, and your engine is far from standard. get my drift??

dont rely on gadgets to tell you when and how to drive. Do it by knowing that your engine can take it and gut feeling.

[j1400]

I paid ?25 for my 4.18 final, whihc I was less than I was willing to pay I'd have got to abotu 35 prsonally.

The most important thing about the rev limit is that it is sufficently high that when you change for the next gear you don't fall off the torque curve, so you can rev well pass the peak power as when you change gear you already high up the next gear so will pull thought it quicker, least that's the theory.

My engine is a X14XE, was running about 130ish, but is in bits having some headwork done, and other bits tweaked and should break the 140mark when it's mapped.