Forced induction: yes or no?

Forced induction: yes or no?

Author
Discussion

BioBa

Original Poster:

317 posts

160 months

Sunday 19th May 2013
quotequote all
The hours on my SR3 with a 1500 motor are heading towards 50. The engine is still very strong but I am planning ahead. Once a rebuild is necessary I was thinking about turbo charging. I only know of 1300 engines being turbo charged and I am not sure if it is advisable to do the same to a 1500 engine.
I loved the reliability of my engine and I am a little worried if turbo charging would make me spend endless hours in the workshop. I see a lot of other turbo charged cars (not Radicals) constantly breaking down during sprint days.

What kits should I look at? Stage I or II? Do I need to upgrade my clutch and gear box? Are any other upgrades advisable?

Any feedback or advise from anybody who has charged their engines would be appreciated.

andylaurence

438 posts

218 months

Monday 20th May 2013
quotequote all
BioBa said:
I only know of 1300 engines being turbo charged
BioBa said:
I loved the reliability of my engine
BioBa said:
I see a lot of other turbo charged cars (not Radicals) constantly breaking down during sprint days.
I've considered it once or twice, but the above pretty much tallies with my desires and what I've seen. I only know one person who's not had trouble with his turbo setup and that runs at ~375bhp day in and day out. I've seen a good few gearbox and engine internals from the others.

BioBa

Original Poster:

317 posts

160 months

Tuesday 21st May 2013
quotequote all
andylaurence said:
I've considered it once or twice, but the above pretty much tallies with my desires and what I've seen. I only know one person who's not had trouble with his turbo setup and that runs at ~375bhp day in and day out. I've seen a good few gearbox and engine internals from the others.
Do you know who that person is to get some advise?
I am happy to spend the exta money to strengthen key components to make sure the set up is reliable.

andylaurence

438 posts

218 months

Wednesday 22nd May 2013
quotequote all
I know him well, but he bought the car already turbocharged and I'm not sure how much he knows about what's inside it. Jim Belt is the guy who built it, I believe. He's a competitor in the British Sprint Championship and now runs a Juno V6.

RWDKurt

163 posts

253 months

Wednesday 22nd May 2013
quotequote all
I'm running a 1500 SR3 turbo this year in the British Sprint Championship. The car was turbocharged some years ago and prior to my purchase in January was a succesfult hillclimb and sprint car in Ireland. However it had some turbo reliability problems mainly due to a poorly designed exhaust manifold. The engine / gearbox unit itself wasn't a problem to my knowledge.

Simon Tilling advised me to speak to Chris Tullet Exhausts, who built be a manifold and part exhaust system which is reputed not only to solve the problem but also vastly improve flow and therefore output.
It's early days yet, but the car is producing competitive times on low boost, with a lovely flat torque curve from 5000 to 1000 rpm.

BertBert

19,709 posts

218 months

Wednesday 29th May 2013
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By chance was reading Evo mag, an article on Geoff Page the engine builder and he mentions the Mussett MR-1500T http://mussett-racing.com/ that he is working on. The specific engine mentioned seems to be £32.5k + VAT!

Might be worth a call (or might not). Or perhaps Geoff Page himself http://www.geoffpageracing.com/

Bert

dsl2

1,475 posts

208 months

Wednesday 29th May 2013
quotequote all
Quite a few turbo busa's appearing on the National hill climbs this year, all showing amazing speed through the traps.

One of the sports racer style Force cars has gone from a finish line speed at Shelsley of 107mph with a full house 1585cc Busa to 131 mph with a 1.3 turbo.

Amazingly that speed was achieved after being de-tuned to be on the safe side (as its a new build & at the start of the development curve) doing that speed on every run as it was out of gearing before the line!

Simon T

2,136 posts

280 months

Wednesday 29th May 2013
quotequote all
wink

dsl2

1,475 posts

208 months

Wednesday 29th May 2013
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Care to divulge any figures on your new & improved motor Simon?

Simon T

2,136 posts

280 months

Wednesday 29th May 2013
quotequote all
There's a 5 in it...

S

splitpin

2,740 posts

205 months

Wednesday 29th May 2013
quotequote all
dsl2 said:
Care to divulge any figures on your new & improved motor Simon?
Here's a recent clue ........

Simon T said:
Race car engine puts out 266 bhp per litre hehe

S

Simon T

2,136 posts

280 months

Wednesday 29th May 2013
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Yep, but on which map?

dsl2

1,475 posts

208 months

Wednesday 29th May 2013
quotequote all
A 5 you say, at the front of the numbers I guess looking at the distance made up on the Juno & Mallock race before last.

WOW!

DarcySmith

166 posts

244 months

Wednesday 29th May 2013
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dsl2 said:
Care to divulge any figures on your new & improved motor Simon?
Care to divulge any figures on your new Juno Darren!!

DarcySmith

166 posts

244 months

Wednesday 29th May 2013
quotequote all
BertBert said:
By chance was reading Evo mag, an article on Geoff Page the engine builder and he mentions the Mussett MR-1500T http://mussett-racing.com/ that he is working on. The specific engine mentioned seems to be £32.5k + VAT!

Might be worth a call (or might not). Or perhaps Geoff Page himself http://www.geoffpageracing.com/

Bert
A new turbo motor from RPE is 22k + vat

dsl2

1,475 posts

208 months

Thursday 30th May 2013
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Haha Darcy,

Safe to say its a good couple of hundred power-horse's behind Mr T's prodigious output so very much doubt I'll be pulling out of his slip stream to pass on the straights lol!

DarcySmith

166 posts

244 months

Thursday 30th May 2013
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dsl2 said:
Haha Darcy,

Safe to say its a good couple of hundred power-horse's behind Mr T's prodigious output so very much doubt I'll be pulling out of his slip stream to pass on the straights lol!
Be interesting to see how well the Hartley Chirons will go.

Cars will be sub 500kg

Darcy

dsl2

1,475 posts

208 months

Thursday 30th May 2013
quotequote all
Undoubtedly they are going to be like a missile on the straights as long as the install is engineered well for cooling & reliability to enable them to keep up the pace all race long.

Going to be very interesting, can't wait to see how those motor's pan out.




splitpin

2,740 posts

205 months

Thursday 30th May 2013
quotequote all
Back to the OP rather than OS ...........

I should say that unless there's a (supposedly compelling) competion reason, a definite NO.

Simon T

2,136 posts

280 months

Thursday 30th May 2013
quotequote all
Why not?