
Possible First Vx 2.4 Harrop 1900 Build
#101
Posted 09 July 2016 - 09:57 PM
#102
Posted 09 July 2016 - 09:59 PM
#103
Posted 10 July 2016 - 07:57 AM
Welcome to the 400 club
Good to see you've completely changed your tune after all the chastisement you gave me years ago.
Edited by Nev, 10 July 2016 - 08:00 AM.
#104
Posted 10 July 2016 - 07:59 AM
Ah I see, hoping to see it with the 1320. Then 500 with a custom inlet and 1900
500 HP seems a lot in a VX220 IMO unless you have lots of grip, around 425 to 450 is the sweet spot if you have skinnyish tyres.
Edited by Nev, 10 July 2016 - 08:03 AM.
#105
Posted 10 July 2016 - 08:03 AM
Couldn't agree more Nev, my problem.....and I'm being totally honest is I'm a bhp junkie. Always have been. This car is the first chance I've had in a few years due to starting the business etc to really get my teeth into a project again and chase some numbers. I will however develop the car over this winter a little hopefully so make it more track friendly as currently all the car has going for it is the motor!500 HP seems a lot in a VX220 IMO, around 425 to 450 is the sweet spot if you have skinny tyres.Ah I see, hoping to see it with the 1320. Then 500 with a custom inlet and 1900
#106
Posted 10 July 2016 - 08:10 AM
Well at least the delivery will be highly controllable, that is an asset, though you can still be badly caught out in 1st and 2nd gear.
7800 is nice and high rev range for the long throw in your block, how did you settle on that being the limit?
Edited by Nev, 10 July 2016 - 08:13 AM.
#107
Posted 10 July 2016 - 08:19 AM
#108
Posted 10 July 2016 - 08:34 AM
Raved my last one to 7400 on a stock motor, the cams in this are supposed to make peak power at 8000(in an na motor) but they may be a little mild for mine so I could end up changing them again over the winter. All depends on the final figures really nev. I 100% want to come up with something different for the inlet manifold as there's easy bhp to be had there.
Yes, the inlet manifold certainly seems to be the largest bugbear on the Z22 setup. It amazes me that nobody yet has actually come up with a remote IC solution yet as it really doesn't strike me as impossible. Naturally enough most people here just want to bolt on off the shelf parts, as they don't have the resources to design and fabricate something genuinely different.
I expect if you come up with a good solution I'm sure it would be snapped up by others if you could offer some "kits".
GL.
Edited by Nev, 10 July 2016 - 08:41 AM.
#109
Posted 10 July 2016 - 09:14 AM
Have I? Mines usable linear power (on track) and sustainable without needing a rebuild or overhaul every other month.Good to see you've completely changed your tune after all the chastisement you gave me years ago.Welcome to the 400 club

#110
Posted 10 July 2016 - 09:27 AM
7800 is nice and high rev range for the long throw in your block, how did you settle on that being the limit?
7800 rpm is the maximum safe limit for rod speed on the z22se engine.
My 2.5 engine uses the 2.4 crank and can only safely rev to 7525rpm due to it's longer stroke, but this engine retains the 2.2 crank and thus can still rev to 7800.
#111
Posted 10 July 2016 - 01:12 PM
#112
Posted 10 July 2016 - 05:23 PM
Have I? Mines usable linear power (on track) and sustainable without needing a rebuild or overhaul every other month.
Good to see you've completely changed your tune after all the chastisement you gave me years ago.Welcome to the 400 club
I never set out to make high figures and if I'm completely honest the numbers mean bugger all to me.
Thankfully my current engine has been fine for 3+ years now, so doesn't need an "overhaul every month" as you incorrectly put it, and probably see more hard miles than most VXs. Secondly, Nippers power is highly utilisable and smooth so long as I'm not caught out with may pants down below about 2500 RPM where there is little torque. If anything I'd guess that it's your car that is less likely to plonk the power down on skinny tyres and spin off. Perhaps if you had some experience of Nipper you'd stop making incorrect and "weighted" comments like this.
I was hoping that the chip on your shoulder would have gone by now.
Edited by Nev, 10 July 2016 - 05:39 PM.
#113
Posted 10 July 2016 - 06:25 PM
As per normal you've bit which I was 100% expecting. 🙈 You're the one who commented about our past engagements and brought this all up, not me! So is it not you with an axe to grind in all this, having to justify your self and car 24/7 and ram it down the necks of the forum users. Be it in a genuinely helpful manner or over the top condescending posts, name dropping or quoting theory's out of a Haynes manual. Are you not making some sweeping statements about my current car which as you said, would need to of 'had some experience' before possibly making them? Pot and kettle sir. 👍 Don't take things so literally when a throw away comment is made. If I did that with your last post I'd be inclined to think is this the same guy who has only ever managed 10 laps before being black flagged for oil coming from their car. And as for the traction thing...... Nev do we need to talk about loss of traction and spinning off into things? You went there, not me. 😬 Of course I must of got this all wrong and my information is floored on the grounds of me being an uneducated pleb. My underlying desire to want a turbo vx has made me bitter and twisted over the years and you've been such a gent to take the flack on behalf of your fellow tubby owner. (Joke alert)! 😘Thankfully my current engine has been fine for 3+ years now, so doesn't need an "overhaul every month" as you incorrectly put it, and probably see more hard miles than most VXs. Secondly, Nippers power is highly utilisable and smooth so long as I'm not caught out with may pants down below about 2500 RPM where there is little torque. If anything I'd guess that it's your car that is less likely to plonk the power down on skinny tyres and spin off. Perhaps if you had some experience of Nipper you'd stop making incorrect and "weighted" comments like this. I was hoping that the chip on your shoulder would have gone by now.
Have I? Mines usable linear power (on track) and sustainable without needing a rebuild or overhaul every other month.
Good to see you've completely changed your tune after all the chastisement you gave me years ago.Welcome to the 400 club
I never set out to make high figures and if I'm completely honest the numbers mean bugger all to me.
#114
Posted 10 July 2016 - 06:53 PM
the limiting factor is more to do with the duty cycle of the injectors, the vxr injectors get to about 80% at about 6800 and 90% 6900/7000 revs.
#115
Posted 10 July 2016 - 07:01 PM
ppfftttt what you boys need is some big boy injectors like my 725cc
#116
Posted 10 July 2016 - 07:01 PM
#117
Posted 10 July 2016 - 07:04 PM
I'm not on vxr injectors mate I'm on the larger Siemens ones. There 800 and something cc.....can't remember exactly what but there plenty big enough. My fuel pump on the Dyno was still stock so in confident that was the fuelling issue. Pumps out now so will be sent to Gary at spitfire tomorrow.the limiting factor is more to do with the duty cycle of the injectors, the vxr injectors get to about 80% at about 6800 and 90% 6900/7000 revs.
#118
Posted 10 July 2016 - 07:08 PM
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