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Author LET or Valver on TB's?
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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13th Mar 04 at 13:14   View User's Profile U2U Member Reply With Quote
Age old question but which would be better? Due to landing myself with a phat new job earning £££ I should be comming into some cash pretty soon so im wondering which route to take? Im feeling a valver on throttle boddies should see me good for just over 200BHP with a lot less weight than the LET with F28, but then just think of Turbo power
LukeGSi
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Registered: 9th Dec 03
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13th Mar 04 at 13:14   View User's Profile U2U Member Reply With Quote
IMO valver with tb's!! I went for a spin in squares and even tho isnt running 100% at the moment it made me moist!!
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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13th Mar 04 at 13:49   View User's Profile U2U Member Reply With Quote
Gud gud Got the cash now for the valver lump... get that dropped in next month. Test/tune that slightly, then towards the end of the year i'll get TB's What would be nice little mods to 'prep' the engine for TB's?

C20XE
big motorsport shafts & GTE CV's
full new gasket set
powercap
new clutch for F20 box
breather mod

- lighten flywheel?
- superchip?
- mild cams?
- ARP bolts?
Joff
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Registered: 17th Oct 00
Location: Cambridgeshire
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13th Mar 04 at 13:54   View User's Profile U2U Member Reply With Quote
Don't bother with the chip.

For most throttle bodies you'll be running dedicated engine management so you can ditch the ECU and any bolt on chips.

Keep the std cam or get your own cams reprofiled to a mild degree, then when it's TB time get a higher lift (probably 285) and have the the management mapped to suit.
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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13th Mar 04 at 14:04   View User's Profile U2U Member Reply With Quote
Cheers. Im only just getting into engines big style so im learing all the way! My mates are still into what fiberglass to bond onto their cars and what colour neons to fit - im looking at what damper rate, camber, and horsepower to run LOL
mk4_astra
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Registered: 15th Oct 03
Location: aylesbury,bucks
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13th Mar 04 at 14:06   View User's Profile U2U Member Reply With Quote
wots your budget? if you can afford to go the turbo route then go 4 it mate
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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13th Mar 04 at 14:11   View User's Profile U2U Member Reply With Quote
all depends, im going to be doing it over time you see, maybe over 1 or 2 years before I sell her. Ive spent over 3K on ICE so i'd spend at least that on a lump. I'll have aprrox £5 - £6K a year for car mods... Then i'll grow up in a couple of years and move out. Then we get into House Mod's LOL
BabyBlade
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Registered: 5th Feb 03
Location: Hereford Rides: Ninja 600
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13th Mar 04 at 14:15   View User's Profile U2U Member Reply With Quote
lol its a toughy

c20xe on tb's is faster but turbo pwer

i would want the turbo just because, its a turbo
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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13th Mar 04 at 14:39   View User's Profile U2U Member Reply With Quote
I'm gettin an LET...

but only because it will be running 4wd, so should get the power down much better than FWD

but for standard drive on the corsa, TB's all the way!
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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13th Mar 04 at 15:00   View User's Profile U2U Member Reply With Quote
turbo
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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13th Mar 04 at 15:08   View User's Profile U2U Member Reply With Quote
LOL cummon guys this is tough

Valver handling would be bad enough but imagine with a LET and i like my handling to be good (well as good as you can get for a corsa LOL)
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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13th Mar 04 at 15:09   View User's Profile U2U Member Reply With Quote
turbo for power
valver is still good power and with the right mods you can still have loadsa fun with it

[Edited on 13-03-04 by VenomTurbo]
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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13th Mar 04 at 15:14   View User's Profile U2U Member Reply With Quote
main problem with the turbo would be traction. the moment the turbo spools up & you come on boost, all hell would break loose! TB's are more of a progressive power-curve, so steady & better for traction.

Also running costs of the turbo would be alot more compared to an XE on TB's
J da Silva
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Registered: 10th Apr 03
Location: The FACTory
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13th Mar 04 at 15:54   View User's Profile U2U Member Reply With Quote
with the turbo you have to feed the power in gradually round bends
AdiSRI
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Registered: 1st May 02
Location: Berkshire
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13th Mar 04 at 19:13   View User's Profile U2U Member Reply With Quote
LET, vrooom tishhhh....
RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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13th Mar 04 at 19:22   View User's Profile U2U Member Reply With Quote
what wud the difference in costs be for both these choices, i also will be coming into more dollar in summer and wud love a turbo.

any help wud be appreciaited

cheers guys
mike16v
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Registered: 20th May 02
Location: sheffield, yorkshire
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13th Mar 04 at 19:39   View User's Profile U2U Member Reply With Quote
XE is cheaper to get in and running that the LET, but the price of the TBs ect will make it about the same if not the LET slightly cheaper imo
John_C
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Registered: 5th Mar 03
Location: South east, Bromley
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13th Mar 04 at 19:57   View User's Profile U2U Member Reply With Quote
tb's more reliable
3CorsaMeal
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Registered: 11th Apr 02
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13th Mar 04 at 19:58   View User's Profile U2U Member Reply With Quote
i wouldn't want a turbo cos i'd blow it up

prefer the TB's route, imo it'll be more reliable. Depends how u drive i spose..
AdiSRI
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Registered: 1st May 02
Location: Berkshire
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13th Mar 04 at 20:00   View User's Profile U2U Member Reply With Quote
LET will be more tunable tho...

Stage 3.5 C20LET wud be fun on a corsa converted to 4wd.
jr
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Registered: 20th May 02
Location: Kent
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13th Mar 04 at 20:56   View User's Profile U2U Member Reply With Quote
i know someone whos running a prototype phase 5 chip on a LET (450bhp)

btw he's just spen 4k on lightnig the bottom end
Evil Ash
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Registered: 22nd Dec 02
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13th Mar 04 at 21:05   View User's Profile U2U Member Reply With Quote
Turbo all the way, just for the dump valve
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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14th Mar 04 at 00:41   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by AdiSRI
LET will be more tunable tho...

Stage 3.5 C20LET wud be fun on a corsa converted to 4wd.


I can't wait

Stage 3.5 may not be enouh though
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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14th Mar 04 at 11:04   View User's Profile U2U Member Reply With Quote
well I drive approx 15-16K miles a year so i'd want reliability. Daft question but wouldnt a LET drink more than a Valver on TB's as I dont want it costing me a fortune in petrol! Im definatley siding with the valver route, as redtops are so common I could replace any parts really cheap - at our local Vaux breakers I must have seen approx 15 - 20 valvers in a year and only one LET and that lump was creamed! Also as im only sticking to 2WD I believe a LET would be wheel spinning all the way, I wouldnt really want to go above 200BHP. I like the idea of tuning too, it would cost a fortune to tune a LET whereas with the Valver being so cheap to begin with it leaves plenty of margin for TB's, lumpy cams etc
miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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14th Mar 04 at 12:53   View User's Profile U2U Member Reply With Quote
Fuel comsumption will be pretty similar.

LET's are cheap to get to about 280bhp.

The Tb route will make things much easier to work on etc. Reliabilty on a std LET shouldn't be an issue as long as you look after it. Most of the LET parts are the same as the XE, so most parts shouldn't be problem.

To get 200bhp from a XE your looking at about £2.5k worth of mods engine probably. Where you get that as std with a LET, just pay about £800 more for the engine in the first place.

A let would be more of a lazy power, the xe more of a screamer.

Either way, you'll be wanting a LSD.

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