Joined the turbo gang
Discussion
So I bit the bullet and ordered a full kit off Eann Whalley.
The last 2 weekends were spent shoe horning it all in.
It fired up and sounded much sweeter and noticeably quieter on the first turn of the key.
I am taking the car on a trailer to Dale at Bailey performance this bank holiday Monday for a check over and safe tune up.
Over next winter the engine will be replaced with something much more suitable than a standard cast piston rescued landrover bottom end that sits in there now and it will be back to Dales for fine tuning and boost turned up to 11. Next year I am gunning for the top spot on the 1/4 mile table again.
I am new to this turbo lark. The engine was around 310 bhp NA.
There is a 12psi spring in the wastegate and Dale will be tuning boost via the MS2 and a MAC valve so its anyones guess the bhp we will see come Monday. That's if those cast pistons hold up that is.
The last 2 weekends were spent shoe horning it all in.
It fired up and sounded much sweeter and noticeably quieter on the first turn of the key.
I am taking the car on a trailer to Dale at Bailey performance this bank holiday Monday for a check over and safe tune up.
Over next winter the engine will be replaced with something much more suitable than a standard cast piston rescued landrover bottom end that sits in there now and it will be back to Dales for fine tuning and boost turned up to 11. Next year I am gunning for the top spot on the 1/4 mile table again.
I am new to this turbo lark. The engine was around 310 bhp NA.
There is a 12psi spring in the wastegate and Dale will be tuning boost via the MS2 and a MAC valve so its anyones guess the bhp we will see come Monday. That's if those cast pistons hold up that is.
DangerousDerek said:
The engine was around 310 bhp NA.
There is a 12psi spring in the wastegate and Dale will be tuning boost via the MS2 and a MAC valve so its anyones guess the bhp we will see come Monday. That's if those cast pistons hold up that is.
Are you taking estimates for a sweepstake?There is a 12psi spring in the wastegate and Dale will be tuning boost via the MS2 and a MAC valve so its anyones guess the bhp we will see come Monday. That's if those cast pistons hold up that is.
My 125000 mile 4L gave 80hp per 5 psi so 12psi should make you at least another 200hp which takes you to 510hp if your injectors, pistons and gearbox are up for it?
ITVRI said:
Are you taking estimates for a sweepstake?
My 125000 mile 4L gave 80hp per 5 psi so 12psi should make you at least another 200hp which takes you to 510hp if your injectors, pistons and gearbox are up for it?
Injectors are Jenvey 440cc. The gearbox was rebuilt by John Reid and held against numerous nitrous assisted drag race launches. The clutch has been in a while but still does the job. Its an AP racing pressure plate with a John Eales organic plate. The driveshafts are Dave Mac.My 125000 mile 4L gave 80hp per 5 psi so 12psi should make you at least another 200hp which takes you to 510hp if your injectors, pistons and gearbox are up for it?
I think the first thing to go may be the composite head gaskets, hopefully before a piston!
Stretch head bolts? Good chance they will yield & cause the head gaskets to fail....
Other common failure is piston ring gaps closing up & causing a piston ring land to fail with all the expected nastiness, ironically well worn rings are way less suceptible to this owing to the bigger gaps.
There is always the good old detonation route which will fairly rapidly nibble a hole through a piston crown (or just break the top of the piston) which result in a bad day for all concerned!
Keep an eye on blowby & don't let it rattle.
E85 is good for these sorts of things as the engine is less sensitive to AFR than gasoline so you can bang a fair bit of additional fuel through without losing power & keep everything relatively cool. Flip side is you need a lot more fuel & its not all that available.
You mentioned injectors being bigger - is the fuel pump & filter upto it (bearing in mind your absoloute fuel pressure will be increased by whatever boost you are running)?
One thing I have been surprised with my research on turbo Rovers is that they do seem to likeva bit of boost so who knows - all may go well!
Good luck with it. Stew
Other common failure is piston ring gaps closing up & causing a piston ring land to fail with all the expected nastiness, ironically well worn rings are way less suceptible to this owing to the bigger gaps.
There is always the good old detonation route which will fairly rapidly nibble a hole through a piston crown (or just break the top of the piston) which result in a bad day for all concerned!
Keep an eye on blowby & don't let it rattle.
E85 is good for these sorts of things as the engine is less sensitive to AFR than gasoline so you can bang a fair bit of additional fuel through without losing power & keep everything relatively cool. Flip side is you need a lot more fuel & its not all that available.
You mentioned injectors being bigger - is the fuel pump & filter upto it (bearing in mind your absoloute fuel pressure will be increased by whatever boost you are running)?
One thing I have been surprised with my research on turbo Rovers is that they do seem to likeva bit of boost so who knows - all may go well!
Good luck with it. Stew
StewB_v6 said:
Stretch head bolts? Good chance they will yield & cause the head gaskets to fail....
Other common failure is piston ring gaps closing up & causing a piston ring land to fail with all the expected nastiness, ironically well worn rings are way less suceptible to this owing to the bigger gaps.
There is always the good old detonation route which will fairly rapidly nibble a hole through a piston crown (or just break the top of the piston) which result in a bad day for all concerned!
Keep an eye on blowby & don't let it rattle.
E85 is good for these sorts of things as the engine is less sensitive to AFR than gasoline so you can bang a fair bit of additional fuel through without losing power & keep everything relatively cool. Flip side is you need a lot more fuel & its not all that available.
You mentioned injectors being bigger - is the fuel pump & filter upto it (bearing in mind your absoloute fuel pressure will be increased by whatever boost you are running)?
One thing I have been surprised with my research on turbo Rovers is that they do seem to likeva bit of boost so who knows - all may go well!
Good luck with it. Stew
ARP head studs are used.Other common failure is piston ring gaps closing up & causing a piston ring land to fail with all the expected nastiness, ironically well worn rings are way less suceptible to this owing to the bigger gaps.
There is always the good old detonation route which will fairly rapidly nibble a hole through a piston crown (or just break the top of the piston) which result in a bad day for all concerned!
Keep an eye on blowby & don't let it rattle.
E85 is good for these sorts of things as the engine is less sensitive to AFR than gasoline so you can bang a fair bit of additional fuel through without losing power & keep everything relatively cool. Flip side is you need a lot more fuel & its not all that available.
You mentioned injectors being bigger - is the fuel pump & filter upto it (bearing in mind your absoloute fuel pressure will be increased by whatever boost you are running)?
One thing I have been surprised with my research on turbo Rovers is that they do seem to likeva bit of boost so who knows - all may go well!
Good luck with it. Stew
The ring gaps were plenty despite new rings being fitted due to some bore wear and a hone needed. Ive ran 150 shot of nitrous on this engine and its still relatively healthy as far as I can see.
The pump is Bosch 044 and should be up to the job for now. The whole fuel system will be revised for purpose next year.
I also have a weber alpha regulator if we need a bit more pressure on Monday.
Thanks for your comments Stew, all good stuff.
Chimp871 said:
Out of interest, how hard was it to install? Nuts and bolts job or drilling holes in the body etc.
This has been in my radar for a while but curious to hear from a DIY install.
My install was quite involved. Maybe due to my spec of turbo etc I needed to modify the crossmember which involved a little cutting and welding. The sump has to be removed and drilled for the oil return from the turbo.This has been in my radar for a while but curious to hear from a DIY install.
To install the intercooler you need to cut holes in the drivers side inner wing. This is easy as Eann supplies a handy template and you can buy plumbers hole cutters that make light work of the fibreglass. I was supplied the kit quick by Eann and did quite a lot of cutting pipes and hoses myself and working out what was best for my install. I spent all Easter and last weekend trying to make a good job of it.
AceOfHearts said:
I vote 470bhp but the clutch will give up 
ETA my homebrew 4.0 setup running 12psi is going to Surrey Rolling Road on the 11th May for its first ever power run! I have just sorted some new wheels and am aiming to get into the 11's this year
Chatting to Dale he reckons 420 but I reckon 450 at 10 psi.ETA my homebrew 4.0 setup running 12psi is going to Surrey Rolling Road on the 11th May for its first ever power run! I have just sorted some new wheels and am aiming to get into the 11's this year
My clutch has held over 500 lb ft numerous times. I suppose it cant last forever tho.
Don't forget to take 5% off SRR figures to compare with Dales
Good luck on getting into the 11's. Its certainly an elite group at the top of the table..... under us 10 second guys
Starting with an engine that must have made far less bhp than yours, mine got to 429 bhp at 10 psi before Jools blew an intercooler pipe off (nor properly tightened big jubilee clip). Jools RR is like Surrey RR with its readings, I am led to believe. Your estimate of at least 450 looks reasonable to me.
No idea how it works, but mine has an electronic matchbox wired in that is called a boost controller, which allows me to run different boost maps, but that isn't really needed in your set up.
Good luck - you deserve some.
No idea how it works, but mine has an electronic matchbox wired in that is called a boost controller, which allows me to run different boost maps, but that isn't really needed in your set up.
Good luck - you deserve some.
DangerousDerek said:
AceOfHearts said:
I vote 470bhp but the clutch will give up
ETA my homebrew 4.0 setup running 12psi is going to Surrey Rolling Road on the 11th May for its first ever power run! I have just sorted some new wheels and am aiming to get into the 11's this year
Chatting to Dale he reckons 420 but I reckon 450 at 10 psi.ETA my homebrew 4.0 setup running 12psi is going to Surrey Rolling Road on the 11th May for its first ever power run! I have just sorted some new wheels and am aiming to get into the 11's this year
My clutch has held over 500 lb ft numerous times. I suppose it cant last forever tho.
Don't forget to take 5% off SRR figures to compare with Dales
Good luck on getting into the 11's. Its certainly an elite group at the top of the table..... under us 10 second guys
If the engine is a 4.0 or 4.6 then it's a really good candidate and pretty strong internally. You'd have to get something seriously wrong to crack a piston or spit out a composite gasket. Detonation is always the big risk but Jules or any good mapper would be on top of that. Also factory ring gaps are huge, it's usually a waste of money for anybody to buy file to fit rings. Just stick to SAE guidelines.
If it's an older engine with slotted pistons then you need to hold back the boost at peak torque. One ping and those pistons can break, they really are that weak.
Nice looking installation, looks good. Be interesting to see what it puts out. It's a good turbo, at 10 psi the compressor chart is leaning to the right (appx 400 hp). A bit more boost would really wake it up if your engine can handle it. Is it a Gen 2 version? I've been looking at GTX3576R's Gen 2. They spin faster in the same area if that makes sense.
If it's an older engine with slotted pistons then you need to hold back the boost at peak torque. One ping and those pistons can break, they really are that weak.
Nice looking installation, looks good. Be interesting to see what it puts out. It's a good turbo, at 10 psi the compressor chart is leaning to the right (appx 400 hp). A bit more boost would really wake it up if your engine can handle it. Is it a Gen 2 version? I've been looking at GTX3576R's Gen 2. They spin faster in the same area if that makes sense.
Edited by Boosted LS1 on Wednesday 1st May 17:58
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