BHP Gains

[Jim-Bob]

I'm starting to plan what mods i want to do on my vts when i upgrade from my 1.1, i was just wondering what sort of gains i would get from each mod?

Enclosed induction with Green Filter
Full Exhaust System
De-Cat
Fast Road Cams
4-2-1 Manifold
New ECU (i.e. Predator)

Anything else you can recommend to increase BHP, other than Turbo it?

Many Thanks

James

[jdizzy]

induction: 0-5bhp maybe

[Steve]

wouldnt bother see 5bhp max lol
will run smoother but for the money in years to come you will think why the fuck did i bother.

[Jim-Bob]

wouldnt bother see 5bhp max lol
will run smoother but for the money in years to come you will think why the fuck did i bother.

what 5 bhp in total?!

so your sayin leave it standard?

Quote:

when we took my saxo to the dyno, we got 136bhp and 117lbsft. I had only a supersprint exhaust and the Predator ECU on. And on a long run ar around 70mph, we got over 45mph

Andy (luthor1 - producer of the Predator ECU)

i think thats being run on a VTR too, even so that would be +16BHP on a VTS or +36BHP on a VTR so i dunno what the 5BHP is all about?


james

[Steve]

just read your doing it to a VTS lol thought you were doing it to your 1.1 hahaha

[DJDannyB]

defo get all that done on a VTS.. will be stupid fast

[JamesR]

with all what you wrote on a VTS iwould expect at least 150bhp if not more.

[Ryan]

performance tuning doesnt work by adding numbers like that.

you cant just say 5bhp+ 10bhp+ 7bhp etc....

mods work together you can collectively gain or loose improvements individual mods can get if they work well/dont work well as a unit.

[JamesR]

P.S - add a good engine service to your list, no point in tuning an engine which hasnt got its full stock power.

[DJDannyB]

yeah i agreeee

[Jim-Bob]

just read your doing it to a VTS lol thought you were doing it to your 1.1 hahaha

oh ok i see mate all taht would do to a 1.1 is slow it down wiv extra weight lol

piss poor performance for the 1.1 :n:

james

[maddison_vts]

hard to say what you will get for each mod really but with all that you should see 150bhp on a healthy 's' engine.

[JamesR]

you could always add a ported and polished TB for that little bit extra. ;)

[Jim-Bob]

you could always add a ported and polished TB for that little bit extra. ;)

what does that involve? how much would it costs roughly? would it help bring the package together?

james

[JamesR]

spencer on here does it for £26, and it involves the bumps and things in your throttle bodie which disrrupt air flow being ground down and removed, check my progress thread on the last page.

it will bring everything together- throttle response much better, slightly better acceleration and maybe 2-4bhp increase. and just more fun to drive. best modification for £26 out there. i love it lol

[KamRacing]

depending on the final spec you should get in the region of 155-160bhp.

You can improve power further.. remember around 220bhp is possible with deep pockets

G


I'm starting to plan what mods i want to do on my vts when i upgrade from my 1.1, i was just wondering what sort of gains i would get from each mod?

Enclosed induction with Green Filter
Full Exhaust System
De-Cat
Fast Road Cams
4-2-1 Manifold
New ECU (i.e. Predator)

Anything else you can recommend to increase BHP, other than Turbo it?

Many Thanks

James

[Jim-Bob]

spencer on here does it for £26, and it involves the bumps and things in your throttle bodie which disrrupt air flow being ground down and removed, check my progress thread on the last page.

it will bring everything together- throttle response much better, slightly better acceleration and maybe 2-4bhp increase. and just more fun to drive. best modification for £26 out there. i love it lol

cheers for the advice buddy ill look in to it

james

[Jim-Bob]

depending on the final spec you should get in the region of 155-160bhp.

You can improve power further.. remember around 220bhp is possible with deep pockets

G


what do you mean by deep pockets G?

sorry abit new to this serious modding stuff

btw all these parts are being ordered from you when the time comes ;)

james

[JamesR]

link to the fella who does it on here:
http://www.saxperience.com/forum/showthread.php?t=48678

and check the last page of my progress thread in my signature.

by deep pockets means you will need quite a lot of money to get over 200bhp. turbo or supercharger easiest way.

but you could do what is called N/A which means you dont used forsced induction ( turbo or supercharger ) and you will use cams, throttle bodies, forged internals, stand alone ECU etc and will require a lot more money.

[goodall3518]

strrrrrrrrrip it if u want it to be quicker.

[Jim-Bob]

strrrrrrrrrip it if u want it to be quicker.

i like my ice and creature comforts too much to do that

james

[Jim-Bob]

can someone explain what a boost valve is and what it does and how its fitted, cos i seen them in fast car and on ebay and they claim to help BHP and will fit any car?

anyone know anymore bout this??

james

[dinga]

need a turbo

[JamesR]

no no no you need a turbo for a "dump valve" he is talking about a FSE power boost valve whihc is effectively a fuel pressure regulator and it lets you put more fuel into the engine, which in nearly all cases it wont need, so you will overfuel your car, which is bad so no no to FSE boost valve.

[CitroenSport]

noss haha ;)

[JamesR]

its NOS btw and NOS is only a comapny who sell nitrous oxide kits, its not actually called NOS lol its a common misconception.

[Ryan]

Dont get an FSE power boost valve.

No need for an adjustable FPR on most cars.

[Jim-Bob]

ok glad i got that cleared up thanks for all help guys...

will keep you posted of when the 's' arrives and keep a progress thread going so everyone can watch it develop, plans already in place for engine as you all know, plus flocked panels and gti interior (hopefully), boot build, front speaker pods, as well as new suspension, bigger brakes and black/polished alloys, black and green theme inside and out i think to match the fusion ice im planning to install.

james

[Jim-Bob]

need a turbo

Dont get an FSE power boost valve.

No need for an adjustable FPR on most cars.

ok glad i got that cleared up thanks for all help guys...

will keep you posted of when the 's' arrives and keep a progress thread going so everyone can watch it develop, plans already in place for engine as you all know, plus flocked panels and gti interior (hopefully), boot build, front speaker pods, as well as new suspension, bigger brakes and black/polished alloys, black and green theme inside and out i think to match the fusion ice im planning to install.

james

[Alex_Oldroyd]

losing added weight can give just as good results as adding power as it increases your power to weight ratio, after your list of mods id go with porting and polishing your head and having your valves re-cut and ground to get the most out of your cams depending on what cams you buy. When adding power dont forget your brakes and transmission setup. Pointless having 160 bhp and shredding your clutch every 5000 miles

[Jim-Bob]

losing added weight can give just as good results as adding power as it increases your power to weight ratio, after your list of mods id go with porting and polishing your head and having your valves re-cut and ground to get the most out of your cams depending on what cams you buy. When adding power dont forget your brakes and transmission setup. Pointless having 160 bhp and shredding your clutch every 5000 miles

I've thought of that, got a high performance new clutch, possibly a rallye gear box (cos the gear ratios are faster than the vts ive been told) on the list, as well as braided brake lines and new pads and discs, not sure if the calipers will need changing yet though??

james

[JamesR]

get some uprated disks aswell while your at it, just some drilled and grooved ones or some bigger calipers off a 306 gti-6

[EazyDayz]

lots of handy info

[Jim-Bob]

get some uprated disks aswell while your at it, just some drilled and grooved ones or some bigger calipers off a 306 gti-6

i am getting new pads and discs, as well as a new high performance clutch, otherwise ill either end up in a ditch or destroy the transmission

i got lots of other things planned i just thought id see what gains i mite expect to get off the mods i had planned, cos if sumthing(s) werent gunna do anything then i wasnt gunna bother forking out for them

james

[JamesR]

gti-6 brake calipers are bigger than your standard calipers, and should still fit. Get them quite cheap from scrapyards/ebay.

[Sparco_Tom]

then start thinking about new gearbox xsi box or rallye box and have brilliant acceleration

[Ryan]

dont bother with 'uprated' clutches.

The standard valeo one is one of if not the best clutch around for most applications. One is even on my 200bhp engine :P

[Jim-Bob]

dont bother with 'uprated' clutches.

The standard valeo one is one of if not the best clutch around for most applications. One is even on my 200bhp engine :P

thats the one i was looking at i thought it was an uprated/high performance clutch :oops:

james

[Jim-Bob]

then start thinking about new gearbox xsi box or rallye box and have brilliant acceleration

yeh as i said above im gunna look into gettin a rallye gearbox cos i heard they have serious accleration

any1 know how much a rallye gearbox would be and the best place to get one?

james

[JamesR]

dont forget with a rallye gearbox your top end will suffer. But i would go for it as you use acceleration more than top end.

[dannyhall]

you could always add a ported and polished TB for that little bit extra. ;)

It doesn't give any BHP gains.

With all the mods mentioned, 145bhp + is possible. But all the mods need to work together to increase bhp/lb ft

[Ryan]

its not just the way the car drives that changes but due to higher rpm at each speed in each gear equates to shite economy :P

[JamesR]

It doesn't give any BHP gains.

With all the mods mentioned, 145bhp + is possible. But all the mods need to work together to increase bhp/lb ft

have you got one? have you had a RR to prove it? i dont think so, i have one, and i noticed the difference, and it greatly improves throttle resposne so by "that little bit extra" i meant just to make the car more responsive.

[luthor1]

Hi Jim,

Personally, I'd get a Janspeed 4-2-1 manifold, full supersprint exhaust, Newman PH3 cams, a set of throttle bodies and my ECU. A small amount of head-work, including a recondition, will probably see you near the limit of the standard injectors

It will go like a scalded cat, sound awesome.

Andy

[Jim-Bob]

Hi Jim,

Personally, I'd get a Janspeed 4-2-1 manifold, full supersprint exhaust, Newman PH3 cams, a set of throttle bodies and my ECU. A small amount of head-work, including a recondition, will probably see you near the limit of the standard injectors

It will go like a scalded cat, sound awesome.

Andy

I was thinking full janspeed exhaust system including their 4-2-1 manifold, newman PH3's, and an enclosed induction instead of throttle bodies, becuse i have heard that throtttle bodies can be unreliable and they are a bit expensive for my budget, the cheapest i can find are £1000+.

all the above will of course be contol by your ECU.

James

[x_X_x]

Hi Guys ! First, sorry for my poor English! I want to ask You , is it normal to loose a bit power in mid revs (2000-4500) , when my custum exhaust is installed? The current configuration is :
- Greeen panel filter with no airbox resonators, and cold air pipe...
- Raceland 4-2-1
- Custom 50mm bore exhaust with 2 resonator boxes (the first one in the place of the cat, and the second one in the place of the backbox).

When i've installed the Manifold, i've noticed good increase in mid range, but when i put the exhaust i loose power in this mid range... And the second lambda sensor is after the first resonator, but the "engine check" lamp lights...

Thank You for the patience guys :clapping:

[x_X_x]

:oops: :wacko: Anyone?

[KamRacing]

Hi Guys ! First, sorry for my poor English!

trust me compared to the way some people write its fine :y:

..is it normal to loose a bit power in mid revs (2000-4500) , when my custum exhaust is installed?..

..When i've installed the Manifold, i've noticed good increase in mid range, but when i put the exhaust i loose power in this mid range... And the second lambda sensor is after the first resonator, but the "engine check" lamp lights..:

the 2nd lambda should be in a sleeve. It is there solely to check that the cat is working correctly so you don't want it plugged into a decat exhaust system.

the exhaust and manifold may well have changed the shape of the power curve. You may have more power but find it higher in the rev range.

[x_X_x]

Thank You ! :y: Please, can You explain me what the "sleeve" is ?

[KamRacing]

something to screw the sensor into. So that you can tuck it out the way

i've seen it done with a piece of rubber hose, but an alloy one is more durable