Does anyone on here know wat the most powerful MK Indy is? I've been wondering how much power or more importantly torque it can take before
twisting, especially their new chassis.
Altho my current Indy isnt finished yet, i'm already gathering parts for the next one 
and will be purchasing an SR20DET engine, box and diff
next month (I love student loans)! If I spend approx. £1000 on the engine it'll make over 300BHP, but for alot less than a holeshot turbo kit I
could have 500bhp out of it
Any help would be much appreciated, Cheers
Im only running 240 at the wheels and thats plenty.
Im sure its way more than enough, but i'll be building the engine up for my 200sx anyway, so thot i'd put it in for a laugh and if its too
much then switch with my 270ish brake engine 
The nissan engine needs mods to the tunnel and footwell. I looked at this engine for my next car, but can't afford 3" off the footwell.
Also after thinking about it, I don't think I'd like too much turbo lag in a 7. Could be entertaining mid corner.
i have the 1.8 turbo nissan engine (200Bhp ish) in my car and to be honest i wouldnt go down the turbo route again, its fun and loads of wheel spin, you will 100% need a lsd, i'd go 2l zetec next time
I was out in my car last night - it made me think about the power issue 
My car has 116bhp (according to Mazda) and a totally standard engine. Last night the roads by me were damp and greasy.
I found it very difficult just getting 116bhp on the road without wheelspin and it made me think what would 200bhp be like in these conditions?
I have hopes for a tuned engine and a turbo installation in the near future but last nights experience has made me think a bit harder.
Maybe a LSD would help??
[Edited on 31/8/06 by JAG]
My tin top has very little turbo lag but agree its insane in the wet, if its on high boost in 4th gear in the wet and I plant it down it lights up! 
Do you reckon the chassis would need strengthing? Would consider having the SX LSD put in aswell if possible.
3" off should be OK as im not overly tall (5'11"
quote:
Originally posted by graememk
i have the 1.8 turbo nissan engine (200Bhp ish) in my car and to be honest i wouldnt go down the turbo route again, its fun and loads of wheel spin, you will 100% need a lsd, i'd go 2l zetec next time
I also would avoid the turbo route if at all possible. a 2 ltr 200hp nat asp engine in a 7 will easily outperform a 260hp turbo in the same car.
The turbo is great for pub numbers and wheelspin but not much else without 4wd.
By 3" off the footwell he meant width not length by the way.........you'll need narrow feet!!!
its not an MK but what about hicost's car... 415bhp & 400 ftlb torque
http://www.jamesmiles.co.uk/
ok its a bit bigger than the standard locost chassis but not very different.
[Edited on 31/8/06 by Findlay234]
my indy mongrel has a 4.0 v8 which willhave a turbo but it also has 4wd, and to be fair all sevens are pretty rubbish in the wet 
quote:
Originally posted by NS Dev
I also would avoid the turbo route if at all possible. a 2 ltr 200hp nat asp engine in a 7 will easily outperform a 260hp turbo in the same car.
The turbo is great for pub numbers and wheelspin but not much else without 4wd.
By 3" off the footwell he meant width not length by the way.........you'll need narrow feet!!!
Cheers
I think a supercharger would be a bit better in a se7en than a turbo, as it removes the lag. I think the bike engine'd versions are quicke due to being lighter and the engines are more suited to a light weight car such as a se7en, with loats of power, but also lots of revs, rather than loads of low down power.
What about civic type r with super charger, that would be 300bhp and a proper thrasher.
Hi in a severn type on a circuit you will have to have double the power with a turbo to out perform an aspirated car this has been seen many times.
Look at the (WLMR) cant think what its called demo car reportdly has 420 bhp from the nissan unit and is quick down the straight but overall lap
times were slower than a 90bhp locost . Same with the hyabusa tubo dax built .
cheers matt
To sum up what everyone's saying;
"Power is nothing without control"
....but I think a turbo' Locost can be just as quick as a nat' asp' engine but you've got to get the installation just right.
In my opinion it's about making the transition from off-boost to on-boost as smooth as possible and getting the right gearing.
Trying to get huge power from a relatively small engine means a big turbo' with lot's of lag and huge torque variation at the boost/no-boost
threshold. Hence it's very fast in a straight line but slow around the corners because the drivers wary of the boost/no-boost thing.
Chris Goods car seems to be just about right - his dyno' curves show a smooth transition and good smooth power delivery. I would be very suprised
if that's a slow car round corners.
I'm really suprised by the slower locosts beating the turbo, cause I reckon around a track i'd give one a run for its money in the SX.
There's all this talk of lag, but I can honestly say I dont experience much at all. I have a greddy profec B boost controller low boost runs
around 7psi and high is 14psi. I've raced M3's with more power than mine, but with the power delivery I can beat them. Surely if that engine
was in a car that weighed half that it would be a weapon. Only thing i'll have to sort out is the handling and diff as on a rollin road it
maxed out at 172mph!! way to fast for a se7en
[Edited on 1/9/06 by Crazy Jay]
quote:
Originally posted by procomp
Hi in a severn type on a circuit you will have to have double the power with a turbo to out perform an aspirated car this has been seen many times. Look at the (WLMR) cant think what its called demo car reportdly has 420 bhp from the nissan unit and is quick down the straight but overall lap times were slower than a 90bhp locost . Same with the hyabusa tubo dax built .
cheers matt
HI i didnt have the two there on the same day but when we had the 1.8 zetec there at the same time as the dax i left it standing on lap time and the
locost racer is only 7secs a lap slower than the kit racer. Locost 1.46
kit 1.39
rgb front runners 1.34
both the dax and the wlmr or what ever its called were mighty quick down the straights but were so slow round the corners espesially the wlmr thing
as it was poping and hissing the dump valve every two seconds looked impressive to all the hot hatch drivers that were there but not to any one else
who was in a average kit car it just got in the way. I think criss mason was there with his mk he may even have video footage of it possibly.
cheers matt
Hmm cheers for the info maybe worth lookin into some other engines, maybe a real nice busa even. Will let ya's know when i know
Is this the car you mean?
[Edited on 1/9/06 by Crazy Jay]
Hi yea pretty shure it was one of them has the mk chassis under it i think.
cheers matt
AGM WLR is the car, built on an Indy based chassis with outriggers to hold the full body work on.
Certainly used to be an Indy chassis with outriggers, think they started making their 'own' chassis later on.
James and Jonte talk about it here http://www.locostbuilders.co.uk/viewthread.php?tid=42903
quote:
Originally posted by procomp
HI i didnt have the two there on the same day but when we had the 1.8 zetec there at the same time as the dax i left it standing on lap time and the locost racer is only 7secs a lap slower than the kit racer. Locost 1.46
kit 1.39
rgb front runners 1.34
both the dax and the wlmr or what ever its called were mighty quick down the straights but were so slow round the corners espesially the wlmr thing as it was poping and hissing the dump valve every two seconds looked impressive to all the hot hatch drivers that were there but not to any one else who was in a average kit car it just got in the way. I think criss mason was there with his mk he may even have video footage of it possibly.
cheers matt
Lol
I remember being caught and passed at donnington in my Ultima by a BEC MK indy (I have a rule if a car catches me in the corner I let it past on the
straight), my Ultima was genuinelly quicker accelerating than an R500 or bussa radical, but I was a complete girl in the corners as its a lot of money
to risk throwing into the gravel and I don't go to track days to race.
Also I think the other driver was better than me.
My point is that at a normal track day just because its on track does not mean that its anywhere near the cars limit on the corners etc......
However I will point out that power does not always = more fun as its easier for the average Joe to get to the limit of a less powerful car.
Hi isimply stated that when at cadwell park18 months or so ago i was driving a 155bhp normally aspirated zetec engined kitcar and was quicker than the
dax hyabusa turbo round the circuit so were plenty of other road going kitcars there on the day. I have no idea who was driving the dax other than
they were using it as a demo car and they were certinaly driving it hard. So yes at cadwell park a severn with a turbo with 350ish bhp will only be on
the pace of a locost race car with 90bhp or any other road going seven with upto 150bhp normally aspirated assuming that all cars are being driven by
some one who has a reasonable level of driving ability and all cars are setup pretty good for road use also.
It is pretty much reconised that to get the same car with a turbo up to the same pace around a circuit you will need almost double the bhp of the
normally aspirated car. And no it dose not mean that a turbo car is less fun to drive around the same circuit.And yes trackdays are there for people
to drive at there own pace but what was being discussed was the benifit or not of the same car running a turbo or not .
cheers matt
Appologies if that sounded agressive but your reply sounded as tho you were getting at me .
Sorry if i got hold of the wrong end of the stick.
[Edited on 6/9/06 by procomp]
I agree with procomp, I have been at race meetings where rs500 sierra's have been beaten by 300bhp nat asp touring cars. I was told you normally
need at least 50% more power with a turbo to equal a nat asp setup normally down to setup of boost/lag/usable powerband etc of a turbo install.
Ned.
quote:
Originally posted by Findlay234
its not an MK but what about hicost's car... 415bhp & 400 ftlb torque
http://www.jamesmiles.co.uk/
ok its a bit bigger than the standard locost chassis but not very different.
[Edited on 31/8/06 by Findlay234]
seem very strange to me, the high boost 350bhp cossie I had would absolutelly anihalate my std M3 (321bhp NA) on track.
I was warned away from putting the cossie engine in a 7 though which is why I have an R1 engine.
quote:
Originally posted by gttman
seem very strange to me, the high boost 350bhp cossie I had would absolutelly anihalate my std M3 (321bhp NA) on track.
I was warned away from putting the cossie engine in a 7 though which is why I have an R1 engine.
quote:
Originally posted by procomp
Appologies if that sounded agressive but your reply sounded as tho you were getting at me .
Sorry if i got hold of the wrong end of the stick.
[Edited on 6/9/06 by procomp]
Hi no problem as i said to quadra every one has there own point of veiw and this is a disscusion forum.
And you have hit the nail on the head. with seven type cars weighing in at 450-600kg there is only so much power/torque that you can put down to the
ground and the rest is costing a lot of money to obtain and no really useful way of using it .
cheers matt
All a turbo does is effectivelly increase the capacity of the engine, it's not the turbo's fault if the package can't cope with the
resulting torque.
Low down Torque in a lightweight car is never going to be easy to use no matter how its created.... what we all need is a modern F1 engine with only
235ftlb torque but 19,000rpm!
235 lbft! Is that it?! That's pooo
but its also over 850bhp!
keep it simple, ditch a NA 4age 20v in there,
it has enough torque to make beelzebub soil his underpants. and plenty top end (8krpm) power to be very entertaining and you don't have to touch
cams or anything to get there. just get the ECU stff done and off you go.
Mine has 121RWhp and 163RWnm in fourth, just build it light!
grtz Thomas
Ive been talking to a mate who has a 550bhp evo 7 and he has an anti-lag system with traction control. Think thats maybe the way to go. £2000
tho's more than a little steep
Quite a fan of those 4age engines