Pritchard

I'm due to see Mark @ Abbey soon, once he finds time to squeeze me in for another jobby. i'll run it past him. yes labour wise, the majority will be getting done by a garage. As i am in the realms of the unknown and expensive parts, i want someone else to have liability for a bad fitment Yes the LS conversion would be perfect, but i thought we assertained its well clear of £10k, its not even close to a drop in lump. dashboard, eletronics, wiring looms, gearbox etc etc to name the few points i know of (checkout Wasso's Suzanne thread) so that rules it out. with regard to dynos, yes i agree they dont tell the full story,, and also i am narrowly focusing on peak HP gains for a figure. but the reason why i am focusing on dynos at all, is that it is the only proof that a part actually adds value to the power of a car. ((unless someone regularly drags or circuits. but this has even more variables than a dyno. and you cant sell a lap time on a brochure!) if i could get it in budget, i would love to simply bore&stroke, and cam it. but dissasembling that bottom end is serious man hours!

is this a serious thread? lol. if it is, then the most obvious thing thats not been mentioned is to find out where you're going before you leave! or maybe thats the point? is it really a 5mile drive, but you havent planned it properly so its going to take aroud 7 hours? yea, yea thats it. problem solved

Floyd Octet, ive alrea seen both of those threads. Kev's in particiular is another exmaple of extreme headwork, and a poor result. i've not seen any proper flow benching comparisions between the OEM head and a ported example, but im wondering if they are being overdone. theres many results of non-ported OEM valve heads that seem to perform just as well, or better. just an assumption from observation. *edit, sorry Floyd! wrong name

cheers chaps. stroker was the original plan Jet, with either the stroked 3.8, or stroked and bored 4.15, but again costs spiral quickly with this route.

Yes. you best get quoting thanks for the earlier PM for that engine, but the low comp isnt to my requirements im afraid.

? not sure what you mean here. the PPE headers required the OEM cats to be removed and replocated further down the exhaust system. hence why ive listed a new custom exhaust will be required. the PPE doesnt actually come with cats... ITBS - yes that would be awesome. but price means other areas will be neglected, and also i cant find any solid dynos results for anyone that sused them. its a bit of an unknown on the Z. this puts me off. LS# V8 - that was my original plan actually. but having spoken to Wasso the price was well into 5 figures. out of budget.

The NA Build. Morning lads. So im currently spec'ing out the next stage of the Pumpkin Build. as im sure a fair few of you are aware of now from the meets, that the missus is actively encouraging me to supercharge the car. (if i supercharge it, she gets a holiday. thats the deal ). But, as much as i appreciate a charge, i am not and never will be a forced induction kind of guy. so i've been spending alot of time reading through this forum and the US side to see what dynos exist for NA tuning- very few it seems! I am working to a budget of around £8k, as thats seems to be the going rate for a drive-in, drive-out SC install at the moment. and from what i have been reading, bottom end on the DE is only advisable to about 400hp before it needs money on it. in which case, i am assuming thats around 370-380 at the wheels (as a general guide, doesnt need to be argued. ) My requirements: none really. MPG is going to drop. thats a given. drivability needs to be realistic, but as most of my driving is motoway anyway (3-5k rpm) things like a heavy clutch or rough idle isnt an issue. Now for NA, things get expensive, and there is very little good solid information (in terms of dyno results) showing what can be acheived. noone wants to gamble £1000 on a part because no dyno results exist, only to find its not added any significant power. unfortunately, this could be me. UK side: With the dynos that do exist, i am seeing some polar opposites: (all the below loosely quoted from dynos im seen from members. but remember these are different dynos, different days, different cars) The stock DE is putting down figures of around 235whp (UK side. the Yanks are quoting nearler 210!) With the usual intake, sports cat, catback, plenum spacers, and UpRev, results of 240-255 are seen. Not a great increase, as we know. I have seen talk of cams being installed, with marginal gain but no dynos. mention of ported heads, big valves and big cams with poor results, but no dyno. Cant see any results at all for exhaust manifolds, seems no-one runs then at all whom has been anywhere near a dyno. (yes i am aware of the cost implications for fitment). There is however one nugget that i did find, there one a dyno i found of someone that went to Abbey MS for cams AND a bottom end compression increase through pistons. Other than the intake & exhaust mods i didnt see anything else unusual listed. that made 307hp at the hubs (Abbey Dyno). My best result at Abbey was 271hp @hubs. theres HP lurking somewhere! Stateside things get messy. the chat rooms are full of muppets vomiting ''NA is a waste of time'' in every thread, making unearthing useful information difficult. it gets even funnier when they all bitch after every dyno result that the dyno they used was inadequate and invalid because the dyno ''wasnt the right one'' (theres forum-wars out there of dynoplot vs dynojet, vs mustang vs dynodynamics etc) however, some information can be gleaned: Ive seen reports of a full head build by cosworth, ported head large valves, inlet manifold etc, that made 'poor power', but couldnt find the dyno. There are back to back tests of the Cosworth inlet manifold vs Plenum spacer, and the spacer wins! (£100 vs £1000!! lol). actually there are a couple of the above test. appears the cosworth manifold is not superier to the plenum spacer at all. There was another dyno i saw with ported headwork, again results were negligable. Once we get into the realms of cams however, there is some better information coming through. most notably, the user SGSash that now runs Onpointdyno. there are some serious back to back tests of their dynos which are invaluable. im sure you have all heard of the 372whp NA zed? well, thats theirs. **(also worth noting now, this is a race space and is STILL less than a basic supercharger.) but how they got there is whats interesting. Looking at their progressive results, they cleared 330whp before the internals were even touched (exception of cams). big gains were seen from a custom inlet manifold and throttle body setup, and from a custom longtube exhaust manifold (about 25whp each). And then when testing cams, another 20whp was found over OEM. There are another couple of dynos using long tube headers, and again clearing 300whp with ease. Now to begin to price up the sort of route i will be looking at, the essentials are going to be: Custom inlet manifold - spec'd and quoted at £1200 Ported TB -spec'd and quoted at £120 (not going for another, as it seems there are too many electrical and ecu issues to consider) Camshafts - still considering journal specs, but £1000 is the ballpark for a set. Exhaust Manifold - £1400 PPE is the only maker i can find. I got some custom quotes but they were beyond daft! new custom exhaust - £1000 - due to the longer manifold, new cats need to be purchased and relocated.. etc another remap: £400 plus general labour to fit the above, thats about £6k gone already. and from result seen, if i clear 310whp i'll be doing very well. I havent seen any positive results from headwork and larger valves, so i wont be exploring that option. < unless someone else can dig something up? which means the remaining 2k budget will be likely spent on the bottom end... although it wont go far! high compression pistons alone are about £1200, before fitment. unless i drop another part and invest in the bottom end instead. Its clear why the NA route is neglected.Hopefully the above information might help some other guys in deciding FI or NA without them getting the usual ''its a wate of time'' answer. at least theres some substance in the reasoning here. ...in my opinion yes NA is a waste of money, when compared to Fi tuning. But its my preferred tuning route. plus bragging rights of course for NA power. if anyone knows or can recommend anyone for the following couple of parts that would be awesome: - im looking for other inlet manifold options, outside of Kinetix and Coswroth. I have a quote from a custom frabicator whos running a VQ35 in a race car, but ive never used the guy. - exhaust manifold, is there anythign else out there except for the PPE? apert from the tomei and ebay short manifold replacements? - is anyone aware of a larger plug and play drivebywire throttle body. otherwise boring is going to be my only option. *suspension and brakes are to be upgraded prior to the work. current engine mods: 06 airbox with velocity stack plenum spacer cobra sport cats, Y pipe, cobra non-res back single mass lightweight flywheel remap 271hp @ hubs. but most of the above list of mods will need to go to accomodate the required route. but selling these can offset some cost Pritchard

bump

te PPE headers.... do they fit UK cars? i thought they didnt fit RHD? ....just asking because im looking

i'll take the lower plenum please. PM en route

oh. of course i forgot. ok, but then i need a plenum spacer dont i.... lol. research purposes...

Stu, how can i work backwards from 12%? i need another number. anyone got a manifold and fluid knocking around....

i am in Southampton tomorrow... PM on its way

well, yea. but whats the base figure. is the plenum as big as 3.5m3 i wonder...

Afternoon, ive been raking through the interwebnet looking for my answer, cant find it on the UK, US forums, nor on a Wiki or Google. So my chances of getting this answered are probably slim.... Does anyone know the internal volume of the DE manifold plenum? Either with or without runners. The only ''usefull' information i can find is that the plenum spacers add around 12%... 12% of what? Thanks in advance my fellow Nissan Enthusiastic Nuts. Unfortunately i missed mine. Hopefully tomorrow i will remember to raid the fridge magnet before I stick open the kettle bell. Damn toasted pocket cups.

hi chaps, my breakdown has expired with a small firm, im looking to get a new one. having broken down in every single car i have ever owned not yet the Z!) i am quite familiar with the way the conversation goes. one of their questions is ''is the car lowered?'' so, who do you guys use? how will they recover if its lowered, and is it a 'specialised' tow or company that offers cover on it? i assume it just means they wont use a flatbed but a dolley or A frame instead? thought id ask before i start cold calling companies for quotes cheers.

i've scrolled threw the last few pages have just seen just chit chat... whats the crack with the project Wasso? how are you getting on?

I had a go in a 200sx at Santa Pod a couple of months ago. loved the drfting, but made me even more afraid to do it on the road. would die if i scratched my car. but there are a few guys that do it as a serious hobby. i'm sure they will be along soon to tell you the costs.

is it up yet?

....oh @*!#. yea, new box then.

in which case the time its taken you to type ths you probably could've told me the answer lol. but hands up, i didnt search. i didnt expect this to be a common thing....

Like ! swap?

cars on 50k. '04 model. the gearbox for a while now has crunched when i change gear at over 4k RPM from 4th direct to 6th. Fine, i will take 5th instead. now its doing it from 4th into 5th at high rpm. if i drop the clutch and wait for the rpm (and gearbox) to stop spinning it goes in fine. i'll go and check the oil level in the box. but assuming thats fine ( im not aware of a leak) then is this a terminal box and a ebay one required, or is it most cost effective to get a new synco ? ( i assume thats what it is). ive never had a gearbox go before....

Benjy... talk me through hat front bumper. wat is it?

About time. that is all