[Mk2] [NA] 150mph in 4th gear from an NA!!!

Discussion and technical advice the SW20 MR2. 3S-GTE, 3S-GE, 3S-FE etc
Anything and everything to do with maintenance, modifications and electrical is in here for the Mk2.

Moderators: IMOC Moderators, IMOC Committee Members

Greddy-Matt
Posts: 4412
Joined: Thu Dec 08, 2005 3:51 pm
Location: Southampton

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by Greddy-Matt »

Lol I hope she was strapped down good and tight :lol:
ryan
Posts: 2628
Joined: Tue Dec 14, 2004 6:09 pm
Location: Abergavenny,South Wales

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by ryan »

I've owned a rev1 na and rev4, and the former felt quicker, and would pull to an indicated 140mph. The rev 4 could only manage an indicated 128mph. Obviosly too many variables to compare them scientifically, but I think the T bar option can add weight , and the later 'lean burn' rev4 + engine alterations blunted the performance Am I right in thinking bhp went from 158-173-168 from rev1 to rev 5?
Leon.
Posts: 12780
Joined: Fri Jan 07, 2005 7:35 pm
Location: Guildford, Surrey

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by Leon. »

ryan wrote:Am I right in thinking bhp went from 158-173-168 from rev1 to rev 5?


Yeh. Rev 4 UK N/A model had a book topspeed of 137mph, so I assume you had issues with yours. I do believe the lower revisions of N/A model had more torque, but torque doesn't equal more topspeed.
Si_Crewe
Posts: 1444
Joined: Thu Apr 27, 2006 7:00 pm
Location: Near Dumfries

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by Si_Crewe »

Si_Crewe wrote:I just fitted a set of 17" wheels (thanks Luthor1 :thumleft:) and noticed that they were at least 2" larger diameter than the stock wheels.
I confirmed this cos, after fitting the new wheels on one side, the car was leaning over quite dramatically.


Leeroy wrote:Si, you're aware that the lower profile tyres will lower the RR right, so will counteract the larger diameter rims?

For example 225/50/15 is almost the same RR as 245/35/17...


Reread what I posted. ;)
L0rdMike
Posts: 415
Joined: Mon Feb 07, 2005 10:43 pm
Location: Southampton

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by L0rdMike »

I bet you could get them sort of speeds by looking at the speedo.

I think I could hit 180 on my speedo in my Rev3 Turbo but with it over reading it wont be near that.
Poohbear
Posts: 517
Joined: Wed Apr 20, 2005 4:19 am
Location: Kings Lynn
Contact:

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by Poohbear »

I've had my Rev2 NA up to a GPS indicated 137mph @ 6800 rpm speedo was reading 143mph, it just didn't have enough power to push itself through the air any quicker.

Bob
I'm Going To Die Young...But When I'm Very Very Old!
Image
acf8181
Posts: 809
Joined: Tue Apr 05, 2005 12:00 am
Location: Norwich

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by acf8181 »

My n/a did GPS verified 140mph downhill (private test track), but the speedo was showing 150mph, and it had no rpm left.....will go slightly over GPS 130mph on flat, probably more if the run way hadn't run out. Gets to 125 fine, then struggles.
Galan

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by Galan »

despite having read much about 130-140 max about N/A's, i have personally reached 156 ish (250 km/h) in brussels->antwerpen road

you guys need a place where you can try your car out without being afraid of cops, i also thought it would go 220 and not further (mine is a 91 n/a btw, no mods by that time, all stock)

has any of you TESTED your n/a to full and seen that it does NOT go past 155 mph? Mine was doing fine i just got scared :pale: of the age and speed

:clap:
amnesia

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by amnesia »

I managed an indicated 120 (GPS) at 7krpm in 4th on my private test track the other day. I can't see that 5th would give me another 30 mph :-k
luthor1
Posts: 2452
Joined: Sat Nov 05, 2005 7:03 pm
Location: Southampton

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by luthor1 »

With those exact wheels/tyres on my tubby, I can confirm too that my speedo was accurate to within 1mph GPS -vs- speedo from 30 to 150mph.

225/50-15, sidewall 4.4in, radius 11.9in diameter 23.9in circumference 75.0in, revs/mile 845

225/45-17, sidewall 4.0in, radius 12.5in, diameter 25.0in, circumference 78.5in revs/mil 808.

If the 225's were worn down, then it would look very much like getting on towards 2" diameter difference...
G-LimitedGav

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by G-LimitedGav »

The rev1 NA is by far the fastest NA model, i hav a rev2 which i loved, but it had no speed at all, crashd tht unfortunatly 2 boxing days ago and bought a 200sx which was crazy fast, actually scared me. Someone i know bought a imported NA rev 1 a few months after and he was behind me on a str8 so i thought id embaress him, floored it and 2 my surprise he was keeping up, slowly falling behind but it wasnt embaressing what so ever, i hit 125/130 before slowing down because i didnt want a full blown race round corners etc. My NA had enough trouble breaking over the 100mph barrier. Are the Rev1s much faster on paper?

p.s he got his for £800 on ebay!

Also my 200sx kept up with an L reg impreza turbo up a hill, tho i think this may have been a weight issue.
luthor1
Posts: 2452
Joined: Sat Nov 05, 2005 7:03 pm
Location: Southampton

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by luthor1 »

200sx 2litre turbo is 197bhp and a 1994 impreza uk spec will be 212bhp but 4wd so similar performance.

The Rev1na is the slowest of the NA's actually...

your's sounds like it was *very* ill.
vishpish
Posts: 565
Joined: Sun Dec 24, 2006 3:57 am
Location: Glasgow

Re: [Mk2] [NA] 150mph in 4th gear from an NA!!!

Post by vishpish »

hey this thread is really interesting but also quite contradictory lol

is the rev1 the quickest to 60 :pray: and the rev3 upwards better top speed?

thats what ive heard lol its the lightened rev1 and more torquey engine...

or is this completely wrong!
Post Reply

Return to “MR2 MK2 1990 - 1999 NA & Turbo”