Working top end+leaving bottom-risky?

[dunova]

Once i've fitted my t40's, head and cam to my gsi am i taking abit of a risk by not touching the bottom end? I'm hoping to get around the 130 bhp mark so it will stress the bottom end quite abit. In the summer i'll be lightening+balancing the bottom end, re-ground crank, new main bearings and possibly re-boring to 1650 with oversized pistons, but for the winter i was just going to fit the carbs, head and cam.

So do you think i'm likely to do any damage? I never push my car right to the limit anyway, so if i take it abit steady until the bottom end's sorted should i be alright? Cheers for any info

[Aragorn]

the rods etc should all be fine at those kinda power levels

if your pushing the revs high u might want to look at arp bolts but i think it should be fine as long as your bottom end isnt shagged

[dunova]

if your pushing the revs high u might want to look at arp bolts but i think it should be fine as long as your bottom end isnt shagged

:lol: Well no knocking or anything so i presume its okay but the car has covered about 115k. What are arp bolts for? Do they just give extra strength?

[Aragorn]

well apparently the first component to go under high load /revs is infact the rod bolts and not the rods themselves

the ARP versions are uprated from standard and are much stronger

[dunova]

I think i'll get some then and fit them when i do everything else. Cheers :+:

[robb2]

Twin 40s + Winter = problems

[dunova]

Twin 40s + Winter = problems

Looks like a lot of people on here will have 'problems' then.

[Stuart]

Twin 40s + Winter = problems

*cough* bollocks *cough*

[dunova]

robb2 wrote:
Twin 40s + Winter = problems


*cough* b******s *cough*

My thoughts exactly.

[Ben]

If done correctly and looked after dosent make any difference on temperture, Dan uses his car all year round!

[nathan.]

you should be ok, no work is really needed to the bottom end.

The carbs should be fine through winter, alot of people on this site run carbs.

[Philsutton]

i ran twin 40s on my 1400 last year through winter, i had less trouble with them than i did with the standard carb. It would start first time every time.

[m.d.]

i run 45s on a really old 2.0 8v bottom end that is totaly standard at the mo while i finish the new one. its done 140,000 miles and hardly smokes at all, (only does when i rev it past 6k) the oil pressure is fine and it starts first time everyday even without a choke,
if you get problems with twin carbs in winter then they are not set up properly. simple as that

[benji]

i have a standard bottom end. it get's reguarly hammered. and it still won't die, lol.

[DrivingSpanner]

i did a whole big project on the small block nova engines at college a few years back and from what i found they are damn strong as standard, i actually found the first thing needed were uprated valve springs to stop them resonating at high speed and the valve bouncing off its seat!!! bottom end is strong as an ox

[dunova]

Cool should be alright then. I think i'll still get some arp rod bolts and fit them when i do everything else. Anyone know a good place to buy new 32mm chokes?

[benji]

weber or dell'orto? i got a set of 30mm chokes of ebay for ?5, failling that try demon tweeks

[dunova]

I need weber, and i should prob get 32mm and 34mm because i'm not 100% sure which will be best when its being setup. 5 quids a bargain! I'll have a look. Cheers