jimgiblett
|
| posted on 17/11/10 at 06:50 PM |
|
|
Intercoolers
A couple of questions for the LCB collective:-
Q1. Can an intercooler be too large for the turbo? I am using a standard T28 but want to maybe upgrade later to a GT28RS but worried about excessive
lag.
Q2. Can the inlet/outlets be to large. Outlet from the turbo is 2" and inlet to the plenum 2.5" was thinking of having 2.5" inlet
and outlet.
Q3. Due to space issues my intercooler needs to be in front of of the radiator. Should there be a gap or should I keep as tight as possible?
Thanks in advance
- Jim
|
|
|
|
|
marcjagman
|
| posted on 17/11/10 at 06:56 PM |
|
|
Intercoolers for a locost can't be too large, the inlets/oulets are close enough. Some will say close to rad some may say leave a gap,
personally if you have a sucking fan as apposed to a blowing fan a small gap sould be okay or very close would work.
|
|
|
jimgiblett
|
| posted on 17/11/10 at 07:04 PM |
|
|
quote:
Originally posted by marcjagman
Intercoolers for a locost can't be too large, the inlets/oulets are close enough. Some will say close to rad some may say leave a gap,
personally if you have a sucking fan as apposed to a blowing fan a small gap sould be okay or very close would work.
I am being cheeky as it's not in a Locost ist is in my '67 Alfa. I am keeping the intercooler in the engine bay for stealth but as they
come in varying sizes and shapes I was just going to buy the biggest that fits. My concern was that if it is to large the increase in pressure would
take longer and increase lag.
I will be using a 12" sucking fan.
- Jim
|
|
|
flak monkey
|
| posted on 17/11/10 at 07:08 PM |
|
|
Too large will add lag to your boost, but you cant get one that big in a locost anyway.
Same with pipes.
Conversely, too small and you will loose boost due to it creating a restriction.
There should be no gap, and the sides (gap) should be covered so that all the air going through the intercooler goes through the rad. You are likely
to otherwise have overheating issues.
Mine used 50mm pipe work which was the best size for my install. This one was sized for 350bhp at 1 bar of boost. The rad behind is the same size as a
polo rad, but double core.
 
Rad fitting 2
 
Rad fitting 4
[Edited on 17/11/10 by flak monkey]
[Edited on 17/11/10 by flak monkey]
Sera
http://www.motosera.com
|
|
|
jimgiblett
|
| posted on 17/11/10 at 07:21 PM |
|
|
Your setup look excellent and may fit in my Alfa. What are the dimensions? Did you get it all (I/C and rad) from GRS motorsport? Was it a custom
build? Was it v.expensive?
Sorry for all the Qs
There are loads of I/Cs and rads on fleebay which are cheap and pleny custom ones which seem v.expensive.
Cheers
- Jim
|
|
|
flak monkey
|
| posted on 17/11/10 at 07:40 PM |
|
|
GRS will make anything you like. Graham is very good at what he does without a doubt.
It was a custom build yes, made to my dimensions and both were designed to fit together.
The complete assembly was around £700. Never had any problems with heat either on the rolling road or on the road even in the hot summer this year.
Intake temps never went over 30deg either.
David
Sera
http://www.motosera.com
|
|
|
sorens2
|
| posted on 17/11/10 at 08:27 PM |
|
|
An IC cant be too large.
Only if you make it like 2x2m.
I have just fitted a 70x45x7 cm and there is no lag.
Think about how much air a turbo makes per sec.
Go LARGE !!!
Soren S2
|
|
|
matt_gsxr
|
| posted on 17/11/10 at 08:48 PM |
|
|
Jim,
When I started reading this I thought you were going to boost the fury.
Matt
|
|
|
jimgiblett
|
| posted on 17/11/10 at 09:06 PM |
|
|
quote:
Originally posted by matt_gsxr
Jim,
When I started reading this I thought you were going to boost the fury.
Matt
Hi Matt
Maybe one day, I am waiting on Hobbsy to be test bed guinea pig first with the 03 R1.
This is for my old Alfa which I am converting to SR20DET power.
- Jim
|
|
|
pekwah1
|
| posted on 18/11/10 at 12:26 AM |
|
|
hi,
noticed that you're in west sussex... if it helps at all i have a standard mr2 turbo intercooler that you could have for 20 notes.
Same as this one:
I'm in horsham.
If you're interested i'll get some pics of the actual cooler in the garage so you can see the condition etc....
Regards,
andy
|
|
|
jimgiblett
|
| posted on 18/11/10 at 11:22 AM |
|
|
Hi Andy
I'm in Horsham too. Small world eh.
I am hoping to get my SR20DET >300hp so I am not sure that the std intercooler will flow/cool enough. Do you know the core size? I think the
outlet maybe in an inconvenient position as I want to locate it in front of the rad.
Cheers
- Jim
quote:
Originally posted by pekwah1
hi,
noticed that you're in west sussex... if it helps at all i have a standard mr2 turbo intercooler that you could have for 20 notes.
Same as this one:
I'm in horsham.
If you're interested i'll get some pics of the actual cooler in the garage so you can see the condition etc....
Regards,
andy
|
|
|
beaver34
|
| posted on 18/11/10 at 01:47 PM |
|
|
im tubo charging my engine, after getting afew cheap coolers from ebay and breakers i dicided to have one custom made, £290 to the spec i want and the
size i want saved messing around with stuff that will never really work
|
|
|
jimgiblett
|
| posted on 18/11/10 at 01:56 PM |
|
|
quote:
Originally posted by beaver34
im tubo charging my engine, after getting afew cheap coolers from ebay and breakers i dicided to have one custom made, £290 to the spec i want and the
size i want saved messing around with stuff that will never really work
Were the cheap intercoolers all 2nd hand or new. Some look pretty good on paper with reasonable efficiency and low losses for not much money. Or
shouldnt I believe all I read.
- Jim
|
|
|
beaver34
|
| posted on 18/11/10 at 04:43 PM |
|
|
quote:
Originally posted by jimgiblett
quote:
Originally posted by beaver34
im tubo charging my engine, after getting afew cheap coolers from ebay and breakers i dicided to have one custom made, £290 to the spec i want and the
size i want saved messing around with stuff that will never really work
Were the cheap intercoolers all 2nd hand or new. Some look pretty good on paper with reasonable efficiency and low losses for not much money. Or
shouldnt I believe all I read.
- Jim
if i could have got one to fit from ebay i would have used it, but my car the nose is small you might not have this issue
|
|
|
