SR5 question

Author
Discussion

CharleyH

Original Poster:

21 posts

67 months

Sunday 16th September 2018
quotequote all
Can anyone share information on the SR5? This car is a bit of a mystery to me. They appear to basically be SR3s with a Honda K20 Engine which sounds like a reliable combination. It is my understanding that only about 24 were built largely due to their high cost and slightly degraded handling compared to the SR3. I found some information on the SR5 in the attached links, but does anyone have any experience with them or have more detailed information? Any insights would be greatly appreciated.

Thanks ,
Charley


Edited by CharleyH on Wednesday 19th September 16:34

MK3 Dan

259 posts

145 months

Sunday 16th September 2018
quotequote all
What info do you want on them Charley?

It was essentially and early SR8 chassis with mounts to take the K20 engine.

Don't think many were sold as it was built to race in the Ve de Ve series but it didn't prove particularly quick, especially for the cost.

As a track day toy that should do loads of hours it was perfect, although gearboxes were expensive if they needed any work.

CharleyH

Original Poster:

21 posts

67 months

Monday 17th September 2018
quotequote all
I was hoping to hear from people that owned them or were exposed to them to better understand why they weren’t more successful. I suspect you “hit the nail on the head” when you said they weren’t particularly quick in the classes they were designed for (I didn’t know that was the case). I assumed that they would have been extremely reliable and a fantastic option for someone more focused on track days. But today I found the owners manual (https://radicalsportscarregistry.com/sr5-owners-manual/) and was surprised to learn that the recommended engine and transmission overhaul timing was every 30 hours. I figured the k20 would have been good for years.

I was also hoping to find out how many years they were produced...was it just 2007 and 2008?

Thanks,
Charley

MK3 Dan

259 posts

145 months

Monday 17th September 2018
quotequote all
Hi Charley,

Yeah, not being quick enough for the class they were designed for was the biggest problem.

Engines were not too bad but the early ones did have problems with wearing the rear thrust washer and causing engine failures until uprated ones were fitted. There were also a few piston failures that they believed were down to over revs. Other than that I do recall seeing some that had run for over 100 hours - although the gearbox would have rebuilt a few times in that time.

Not exactly sure on the years of production but it was only for a couple of years.

CharleyH

Original Poster:

21 posts

67 months

Tuesday 18th September 2018
quotequote all
Thank you very much, that is very helpful.

Charley

Juno

4,481 posts

249 months

Friday 21st September 2018
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CharleyH said:
Thank you very much, that is very helpful.

Charley
You’d be better looking at one of these!

Juno

4,481 posts

249 months

Friday 21st September 2018
quotequote all
Juno CN


Juno

4,481 posts

249 months

Friday 21st September 2018
quotequote all
I think there are quite a few in the States Charley

Juno said:
CharleyH said:
Thank you very much, that is very helpful.

Charley
You’d be better looking at one of these!