Does the IHI have the same lag as a standard turbo?

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
springs maybe if you ever consider cams and more revs

head stud conversion maybe if considering more geegee's and higher boost at a later date
 

traumapat

Leon Cupra IHI
Jul 24, 2005
5,925
4
sunny sussex
im proberly going to work with this power level for the life of this engine.. so uprated valves are proberly all i need . ive gotten used to the power now but still learning to use it at its best.

i never intended to mod the leon... in fact ive never modding anything before. retrospect nudges me into wishing id done this to a beeza..if only for the weight advantage... then id proberly aim higher.

mr leons a different car again since the bt convs. the turbos really settled down now and ive lost the torque steer . want to keep it that way.

am i kidding myself thinking £1k to have the valves fitted? roughly?

be a while as i just moved house so the money trees impersonating a shrub atm.
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
im proberly going to work with this power level for the life of this engine.. so uprated valves are proberly all i need . ive gotten used to the power now but still learning to use it at its best.

i never intended to mod the leon... in fact ive never modding anything before. retrospect nudges me into wishing id done this to a beeza..if only for the weight advantage... then id proberly aim higher.

mr leons a different car again since the bt convs. the turbos really settled down now and ive lost the torque steer . want to keep it that way.

am i kidding myself thinking £1k to have the valves fitted? roughly?

be a while as i just moved house so the money trees impersonating a shrub atm.

Could prolly be done for that.. if you are serious I can give you the name & number of the guy who can fit these for you.

Leons a better platform for higher power than ibiza. You chose right. You can go for more power now with a GT30 bolt on jobbie onto the rest of your JS bits for 400+bhp (need internals done for peace of mind)
 

traumapat

Leon Cupra IHI
Jul 24, 2005
5,925
4
sunny sussex
Could prolly be done for that.. if you are serious I can give you the name & number of the guy who can fit these for you.

Leons a better platform for higher power than ibiza. You chose right. You can go for more power now with a GT30 bolt on jobbie onto the rest of your JS bits for 400+bhp (need internals done for peace of mind)

yep serious but need to build up funds first mate. ill ring you when ready.

internals .... would that be stronger rods only? or other stuff too? just curious at this stage...(famous last words.....):doh:
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
depending on what pin size are on your existing pistons, then rods if 20mm or rods and pistons if not. Std S3 type would be ok.
 

traumapat

Leon Cupra IHI
Jul 24, 2005
5,925
4
sunny sussex
i guess with the right map 400bhp is still quite driveable?

since ihi im using more oil.. in 6 months im below the bottom kink. new turbo eating it whilst its bedded in? i`ll watch to see if its still using lots.

ive had a puff of smoke when starting from hot from ownership which i put down to a valve seal. its no worse since conversion so i dont think its that.
btw if that is the cause will renewing the valves sort that out?

the cars still a daily commuter so 320bhp is ideal for keeping up with mway traffic:D ... but its nice to know that an extra 80bhp isnt miles away..just in case i get bored.

why do you say that the leons a better platform? intresting.

my current lag is fine. turbos very responsive. is the gt30 laggy?
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
i guess with the right map 400bhp is still quite driveable?

since ihi im using more oil.. in 6 months im below the bottom kink. new turbo eating it whilst its bedded in? i`ll watch to see if its still using lots.

ive had a puff of smoke when starting from hot from ownership which i put down to a valve seal. its no worse since conversion so i dont think its that.
btw if that is the cause will renewing the valves sort that out?

the cars still a daily commuter so 320bhp is ideal for keeping up with mway traffic:D ... but its nice to know that an extra 80bhp isnt miles away..just in case i get bored.

why do you say that the leons a better platform? intresting.

my current lag is fine. turbos very responsive. is the gt30 laggy?

oil consumption is rings or stem seals perhaps if you had it before and after. mine had more ring blow by (heavy breathing from) when I retired it for the built motor.
The GT30 is going to be a nice performer I think judging by tims ibiza, albeit his is on a better flowing manifold than the cast one.

If doing valves then bargain for guides and new seals at the same time.
 
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