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View Full Version : what power can be acheived from a 1.6 8valve with standard inlet?



adam c
15-11-07, 11:55 PM
looking to spend a bit of money on the engine side of my nova after christmas and was just wondering what modifications would be best for it?i already have a blydenstein b+ head to go on it.i remember reading somewhere that you can get more power out of using the standard inlet than using carbs?is this true?i would like a nice useable power curve(not making everything at 9000rpm!)what cam would be suitable?many thanks:thumb:

Adam
16-11-07, 12:02 AM
150bhp with the right cam/setup.
More with a modded tb etc.

Welsh Dan
16-11-07, 12:06 AM
I'd suggest something like a Kent AST2, a conversion to dispak if its a dizzy engine, aftermarket management to cope, and a setup from a reputable RR.

adam c
16-11-07, 12:18 AM
yeah its a e16se.is it an easy enough conversion to dispack?any other mods?

Adam
16-11-07, 12:19 AM
Depends which management you run it on.

You'll need a crank sensor wheel and sensor, suitable dispak.
Custom wiring loom.

adam c
16-11-07, 12:35 AM
i was thinking dta management.do you use the crank sensor wheel and sensor from another vaux or do you have to buy a universal type one?just looking to get a list together so i can get saving and collecting the stuff i need.

Welsh Dan
16-11-07, 12:43 AM
You could probably use the sensor, dispak and pulley from a C14SE or C16SE engine, you'd find lots of both in mk3 astras in scrapyards.

peester
16-11-07, 09:01 AM
bruce/broos' old car would have been ideal here - he based his on the rally build manual, and ran it on after market engine management; as mentioned, was around the 150 bhp mark too with standard inlet..

Stuart
16-11-07, 10:11 AM
good call on the DTA etc!!!! you really really wont regret it!

If you can find somewhere that does abrasive fluid honing (it s abit specialised) then get the inlet manifold done with that as it can remove some of the casing rubbish in the inlet and open it up a touch.

a modded TB (maybe see what 3.0 2v per cylinder ones would fit)

a fun cam (hell youve got full control over the fuelling, go nuts imho)

and the usual bottom end build for the 1.6

adam c
16-11-07, 06:08 PM
what do you mean by the usual bottom end build?also what model dta should i go for?do they supply you with a base map?

Adam
16-11-07, 06:19 PM
Arp's
Re-hone, new rings etc.

Stuart
16-11-07, 08:31 PM
the base model DTA (or an old EXP48) would do the job fine.

base maps might be tricky but ill see what ive got on my old hdd.

t45_ste
16-11-07, 10:13 PM
Might be worth speeking to chris astley. He used the standard inlet with DTA.

Heres his wip on mig, got a bit of info on there. Did you manage the car sorted after the break in?

adam c
17-11-07, 01:00 PM
Might be worth speeking to chris astley. He used the standard inlet with DTA.

Heres his wip on mig, got a bit of info on there. Did you manage the car sorted after the break in?
thanks just been reading the thread!it says he used a carlton gsi3000 throttle body so i will have to get hunting around for one.

craig green
17-11-07, 02:20 PM
The Grp-A cars used Cosworth pistons to raise the compression ratio & get up to 150bhp with chipped ECU's, Grp-A 4 branch & cam. Because of the map it had to run race fuel too.

Just bear in mind, with the outlay you are looking at spending a 1600 XE might be more cost effective. Building your own spec engine is half the fun though.

adam c
17-11-07, 02:28 PM
Just bear in mind, with the outlay you are looking at spending a 1600 XE might be more cost effective. Building your own spec engine is half the fun though.
i thought about using a c16xe engine but if i had one it would HAVE to have throttle bodies on!so i would be looking to spend nearly ?2000 on the kit itself to get roughly 160-170bhp.so i think im going to go 8valve route for the time being but still keep my eyes open and if funds alow build a monster spec c16xe for a later date.

peester
17-11-07, 07:04 PM
i thought about using a c16xe engine but if i had one it would HAVE to have throttle bodies on!

ha! top man.

adam c
25-11-07, 02:34 PM
off to go pick up an inlet manifold up later.anybody know who does abrasive fluid honing?ive tried yell.com but carnt find anywhere.

t45_ste
25-11-07, 03:41 PM
Hi Adam you could try http://www.impulsedevelopments.co.uk/ there not too far away and very reputable.

Ash
25-11-07, 06:42 PM
I'd suggest something like a Kent AST2, a conversion to dispak if its a dizzy engine, aftermarket management to cope, and a setup from a reputable RR.

I was under the impression that a Kent AST cam was for carb used and the NOV range was for injection.

-Bruce- made 150bhp on a standard inlet, with DTA management iirc

adam c
25-11-07, 06:50 PM
Hi Adam you could try http://www.impulsedevelopments.co.uk/ there not too far away and very reputable.
thanks!i shall give them a ring:thumb:

Stuart
26-11-07, 08:52 AM
Tricky.

Dan and Jim make largely the "same" power and nearly the same torque, Pretty much the same engines bar the cam. Dan has an AST2 and Jims has a piper BP300.

Both fun engines to drive but dans is a more driveable lazy engine if you arent giving it beans.
With that in mind I'd pick a cam somewhere between the AST2 and BP300. Maybe something like a 290degree version of the AST2... see what catcams have then call jamsport for a price.

adam c
26-11-07, 11:14 PM
i would prefer a engine like you describe dan's i.e a more drivable lazy engine if you arent giving it full beans.as it will still be my daily driver(hopefully not for long)so i shall still have to drive it in heavy traffic etc.i have just been looking at the catcams website and they do a 291 degree cam,a 297 degree one and a 282 degree cam

Welsh Dan
26-11-07, 11:58 PM
I was under the impression that a Kent AST cam was for carb used and the NOV range was for injection.

-Bruce- made 150bhp on a standard inlet, with DTA management iirc

You're right :).

Ash
27-11-07, 12:01 AM
Woot! ^

Dan's engine is for sale I beleive, it's on carbs tho on a standard inlet

adam c
27-11-07, 12:06 AM
Woot! ^

Dan's engine is for sale I beleive, it's on carbs tho on a standard inlet
how much is it?have you got a link to the spec?:thumb:

Adam
27-11-07, 12:09 AM
The NVO series is for injection engines on standard management.
Mappable management can be mapped to make pretty much any cam run fine(even 300deg etc)

Ash
27-11-07, 12:16 AM
http://www.pngclub.com/forum/viewfeaturecar.php?ref=2011

you have to PM him with an offer

Stuart
27-11-07, 12:49 PM
Ive driven dans car lots and its awesome. 30mph in 5th, floor it and it pulls clean to the limiter (rather rapidly too)

A bargin at what its on offer for :)

RE the catcams


4600338 (http://www.catcams.be/800x600/prod01Adata.htm?PN4600338?PN46003xx.js)
286 / 286?
247 / 247?
11.35 / 11.35mm
2.90 / 2.90mm
O.E.M.
HYDR: rally & cross
4600339 (http://www.catcams.be/800x600/prod01Adata.htm?PN4600339?PN46003xx.js)
298 / 298?
260 / 260?
11.40 / 11.40mm
3.75 / 3.75mm
O.E.M.
HYDR: rally & race

either of those look suitable to be hotter than the AST2 but not as lairy as the bp300...