Best engine management 4 my xe?

[TWAG]

What would be the best engine management system & throttle bodies for my xe nova? I have been looking at the alpha kit which includes throttle bodies and management for ?1500

The engine spec is

- c20xe
- Polish and ported head
- 2049cc with maul pistons
- Lightened and balanced flywheel and crank
- Uprated rod bolts

The engine has just been rebuilt and run in.

Im not looking to spend thousands, i just wana get a bit more out the engine.

[novashed]

the omex kit vaux-md do looks pukka aswell, around the same price i think

[S_Gault]

i hate the weber alpha setup as its all tied up with politics in dealerships and must be mapped only by them.

Why do you want management.. it doesnt really warrant it?

My favourites that ive done are Emerald, DTA and MBE.


Steven

[Stuart]

how come you rebuilt the engine like that and didnt include mildly lairy cams?

DTA is my personal fave, followed by Motec.

lumenition is just a chocolate fire guard lol
and omex is basically the same. but more expensive and less stereotyped to rovers :D

[S_Gault]

youve basically a std recon engine with a head (which doesnt need it as it wont be breathing anymore at top end).

The easy option is a set of 45s carbs and match the inlet manifold (which will be miles away).

If you want the ultimate than i can supply taper throttle bodies with MBE management, a map to suit and the loom all done. Makes it easy

Steven

[j1400]

I have a set of jenvey 45mm TB's for the 20XE for sale, with lumenition management and loom for sale ?900.
Not the best management, but once it's mapped it doesn't make much difference.
msg me if interested.

[dan16v]

if it was me id buy an sbd tp208kit

[S_Gault]

Steve Broughton was over here a couple of years ago competing in his Jade vauxhall.. in british championship rounds in NI.

Lets just say that he wasnt even in the top 3 in the class... 2 of my engines were thou

SB kit wont give 208hp.. it may on an engine dyno, but not in the car.

[dhdev (Oli)]

i run a 1600 xe with MBE management and jenvey taper throttle bodies supplied by SBD. i have nothing but praise for they're kits and would recommend MBE to anyone. i ran the engine with their 165 kit in my previous nova and even tho i was using the wrong injectors it still managed a 14.49 1/4 mile with no rolling road mapping. i recently spoke to a guy at curborough sprint running a westfield with a 2.0 xe on MBE management and it was pushing out 293bhp!!!

[S_Gault]

yea.. 293 on the engine dyno.. not in the car.

My top spec one uses 88mm pistons , head to touring car spec on 5mm stm valves, dry sumped, solid titianium follower, taper throttles, running 8 injectors..

Its all been done before.. aint no secrets in what sb do.. Swindon done it 10 years previously and ive rebuilt several ex-BTCC engines to this spec.

You are correct, MBE is good.

Steven

[dan16v]

wish id done a circa 260bhp tb set up now prolly would have worked out cheaper than my autronic'd turbo :lol:
i dont think twag has the bottle to commit himself to spend ?2000+ on a set up, which am i right in thinking this is the general cost of a decent starter set up?

[S_Gault]

bit cheaper than that.. but youve got the idea.

260 is not road driveable. except in a westfield or such.

Steven

[j1400]

Isn't it prety hard to drive one over 225-230 (limit of hydrolic lifters) on the road?

[S_Gault]

hydralic lifters are rev limited not horsepower., but think you knew that.

I ve never built one to that spec for road.. 90% of my engines are racers.

I have however done a 260hp one for a westfield that was used occassionally on road but it was an animal.. spun wheels in 5th gear in dry tarmac when power cam in. broke gearboxes regularly too!

Steven

[j1400]

Hi Steve, I know past 8-8.5 they aerate, but I though the ramp of the cam profile was also a contributing factor as the lift can't stand the load and compress's?
James

[S_Gault]

your pushing your luck much past 7..

But you are correct, its the cam profile which dictates it.. the key is in measuring the tpd of the cam (thou per degree), then using calculus it possible to work out acceleration off the seat, this causes the lifter to pump up... ie over lifting.. you lose your valve to piston clearance.

ive never had valve spring probs on 16vs if the over the nose pressure is set correctly by installing springs at specified fitted height.

Steven

[j1400]

7k!! Oh, I run to 7750 all the time :? And a friends 1600 16v XE runs to 8100 on hydrolics.
Also someone mentioned to me that oil viscosity can also cause pump up too, but I'm not sure myself. Since I run 5-50w and havent' had any issues (yet)
James

[S_Gault]

your only hitting it for a brief second..

Im talking about competition engines that hold the rev on striaghts for 10 seconds due to low gearing etc..

Theres no way your getting 8K on std 1600 cams.. they simply have no overlap at all.. your rev counters out.. stick a snap-on timing light on it and set it to Tacho.. read it, it'll tell you how accurate it is.

Steven

[j1400]

Lee's engine does run 302 duration cams yeah,
I'm on std cams, but have retarded the cams a few degress to let me rev up more. I'm running a F15 box with a 4.18 final, I can prety easily hit the rev limit on the car, I use the data logger on the ecu (emerald) to tell me how high I'm reving, the gauge is more or a guide, and the shiftlight a final warning.

[dan16v]

not sure as 260bhp would be to bad in the nova? i think it would be drivable, my nova is being mapped from a 300hp base map, then will be fettled to a safe 330bhp, i would go to 350bhp but with out the spray nozzles i have no option for this sort of power! maybe next year!

if you want to go round corners ( which i dont) then i spose 220bhp would be realy nice in a nova with a good lsd and suspension set up!

[S_Gault]

we are talking N/A here dan not turboed..

the undrivalbe fact comes from the overlap of the cams required to get that kind of grunt in N/ A form.

Steven

[j1400]

yeah if you fall off the revs on a high power N/A engine it's alomost like waiting for th eboost on a turbo engine before it picks up again.
Suppose there is not substitue for cc's :cry: