sdh2903
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| posted on 20/5/15 at 05:00 PM |
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vortx mazda - opinions?
I'm getting the urge to get building again and on one of my ebay trawling sessions I noticed MNR are doing the vortx mazda starter kit at a
stonking price. What are peoples opinions of the vortx chassis and bodywork quality? I've also heard a couple of stories of rear wishbone
brackets failing, is this a concern or was it only an issue on earlier chassis?
To be honest the only reason I havent pulled the trigger straight away is the Mazda engine, to live up to my last Bec I want a car engine with 180-200
bhp and preferably N/A. Which kind of rules out the donor engine. My engine preference is a 2.0 duratec but not sure if it coupled to a mk3 mx5 box
will fit in the vortx tunnel?
I plan on giving Mark a call tomorrow to have a chat but thought I'd gather some opinions first.
Cheers
steve
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rash12
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| posted on 20/5/15 at 05:16 PM |
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speak to mike at roadrunner racing im sure that a mazda 1.8 with throttle bodies and canems ecu gives close to 180bhp
[Edited on 20/5/15 by rash12]
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rash12
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| posted on 20/5/15 at 05:23 PM |
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Up from 148bhp standard to 178bhp a nice 30bhp increase from the ITB's and Canems ECU, now running full knock control as well as the VVT.
if you facebook road runner racing theres loads of maxda spec if your interested
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theduck
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| posted on 20/5/15 at 05:54 PM |
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I thought the standard 1.8 was about 130bhp? I dont see you gaining 50bhp from just a set of ITBs.
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dubzter
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| posted on 20/5/15 at 06:09 PM |
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the 1990-2005 (mk2.5) 1.8 from http://www.parkers.co.uk/cars/reviews/facts-and-figures/mazda/mx-5/convertible-1990/
1.8i 2d (98)
7.7 secs
127 mph
140 bhp
1.8i 2d (01)
8.2 secs
127 mph
143 bhp
1.8i 2d (03)
8.2 secs
127 mph
143 bhp
1.8i 2d Auto (01)
10.6 secs
118 mph
139 bhp
1.8i 2d (94)
8.3 secs
123 mph
131 bhp
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sdh2903
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| posted on 20/5/15 at 06:26 PM |
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The vortx is set up for the mk1 or mk2 so it's the 130bhp variant. Reading around throttle bodies do release some ponies bit figures vary from
145 bhp to 175 (optimistic I suspect).
Turbocharging would fit the bhp requirement but I'm not a huge fan of FI in a seven. Plus you can't beat a set of bodies at full chat for
noise 
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coozer
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| posted on 20/5/15 at 06:34 PM |
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And, you can't beat the pissssst-pooo at full chat!!!
1972 V8 Jago
1980 Z750
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theduck
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| posted on 20/5/15 at 06:45 PM |
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quote:
Originally posted by sdh2903
The vortx is set up for the mk1 or mk2 so it's the 130bhp variant. Reading around throttle bodies do release some ponies bit figures vary from
145 bhp to 175 (optimistic I suspect).
Turbocharging would fit the bhp requirement but I'm not a huge fan of FI in a seven. Plus you can't beat a set of bodies at full chat for
noise
.
Shhhh that will bad for your business ;-)
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rash12
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| posted on 20/5/15 at 06:45 PM |
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this is the print out from the rollers
[Edited on 20/5/15 by rash12]
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sdh2903
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| posted on 20/5/15 at 07:16 PM |
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Any ideas of cost of the SR2 starter kit, prices not on website??
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rash12
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| posted on 20/5/15 at 07:36 PM |
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not sure on up to date prices drop them an email they will get back to you roadrunnerracing@hotmail.co.uk
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rdodger
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| posted on 20/5/15 at 07:57 PM |
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How about a Mazda Vortex with an S2000 engine and box?
From what I understand the Road Runner is quite heavy and I'm sure I read somewhere that MNR are about to launch a new light weight chassis.
Maybe worth a conversation?
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rdodger
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| posted on 20/5/15 at 07:57 PM |
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Failing that supercharge the Mazda engine.
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sdh2903
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| posted on 20/5/15 at 08:09 PM |
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I plan on giving mark a call tomorrow at some point for a chat. Ive also emailed roadrunner. I hadnt even really started looking properly until i
found the MNR starter kit on ebay at 2695. Not far off the cost of a welded haynes chassis, bones, roll bar and bodywork!
Are there any off the shelf turbo/supercharger kits out there that anyone recommends for the mx5 motors ?
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amalyos
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| posted on 20/5/15 at 08:21 PM |
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You won't beat the quality of the MNR chassis. I've built 2 and in the process of a 3rd build.
http://stevembuild.blogspot.com
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rdodger
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| posted on 20/5/15 at 08:35 PM |
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quote:
Originally posted by sdh2903
I plan on giving mark a call tomorrow at some point for a chat. Ive also emailed roadrunner. I hadnt even really started looking properly until i
found the MNR starter kit on ebay at 2695. Not far off the cost of a welded haynes chassis, bones, roll bar and bodywork!
Are there any off the shelf turbo/supercharger kits out there that anyone recommends for the mx5 motors ?
http://trackdogracing.com/rotrex.aspx
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hughpinder
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| posted on 21/5/15 at 07:15 AM |
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Clairetoo on here has done conversions to fit the mazda 2.5 v6 into the mx5. As I remember those are lighter than the 1.6/1.8 engine and gave 200 bhp
with throttle bodies. Not sure about the engine fitting though!
Regards
Hugh
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velocitykendal
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| posted on 21/5/15 at 12:33 PM |
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quote:
Originally posted by sdh2903Are there any off the shelf turbo/supercharger kits out there that anyone recommends for the mx5 motors ?
There's the Jackson Racing supercharger kits if you can find one and a chap on the MX5Nutz forum by the name of
'Sturovo' is
making turbo manifolds at very reasonable prices. It seems you can get a lot of bang for your buck by going to the turbo route with a
second-hand TD04 from a Scooby.
I think the main improvement for a N/A MX5 engine on ITBs is the torque more than the horses, but still it's a lot of cash for relatively small
gains. My personal preference would be forced induction for that engine otherwise I'd go Duratec.
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adithorp
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| posted on 21/5/15 at 01:35 PM |
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quote:
Originally posted by hughpinder
Clairetoo on here has done conversions to fit the mazda 2.5 v6 into the mx5. As I remember those are lighter than the 1.6/1.8 engine and gave 200 bhp
with throttle bodies. Not sure about the engine fitting though!
Regards
Hugh
Closer to 250 I believe and the sound...!
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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rdodger
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| posted on 21/5/15 at 01:52 PM |
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I think you may struggle with the V6 option
The starter is positioned gearbox side and may end up be sat in the passenger foot well.
http://crapengineering.weebly.com/
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gaz_gaz
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| posted on 21/5/15 at 04:20 PM |
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Check out G19 Engineering...
Doug uses this forum but I can't remember his username.
Does alot of bike turbo conversions aswell as a lot of MX5 turbo kits at superb prices.
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gaz_gaz
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| posted on 26/5/15 at 09:58 AM |
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What's the major difference between the Vortx Mazda and the Vortx RT+??
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sdh2903
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| posted on 26/5/15 at 10:19 AM |
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As far as I can tell. Diff mounts for mx5 diff plus all uprights brakes steering column and obviously engine and gearbox mounts.
I'm down at Mnr on Thurs and its on my list of questions to ask.
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sdh2903
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| posted on 28/5/15 at 01:24 PM |
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Well visited Mnr this morning, very helpful bunch of guys, came away 3 grand lighter and a September delivery date
Seems a long way off but it suits me as we are in the busy season at work.
Couple of decisions to make, colour, it's either white or blue I think. And to cage or not to cage that is the question......
Now just need to find me a donor car that's in this half of the country
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ash_hammond
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| posted on 28/5/15 at 03:12 PM |
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Here is my mx5 based MAC#1.
1.6 Engine, TD04L Turbo, Emerald ECU, Red RX8 Injectors, Custom Rad and Inter Cooler.
I'm hoping this will see 180 bhp.
.: www.mac1motorsports.co.uk | www.m1moc.com :.
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