Hi,
I've spent a good bit of time digging through the information in this (excellent) site, and have picked up lots of good info. However, I'm wondering if folk might have any views on the specific project I'm looking at. Sometimes it's difficult to decide on 'the one best solution' when reading across various articles and posts. Here's what I'm up to:
I'm transplanting an early LS400 1uz-fe into an S13 Nissan 180SX (suspension, brakes etc will be properly sorted for the new set up). I'd like about 400 - 450 flywheel HP allied to equivalent levels of useable torque.
I've never been a fan of turbod power delivery, preferring the linear / precisely controllable delivery of a supercharged or traditionally tuned N/A set up. Thus, I'm keen to go down either of those routes.
An easy way I'd reckoned of getting there would be to use an Eaton M112 supercharger. I had thought I'd need to rebuild the engine with a lower CR, but from what I read this might not be necessary if targetting 'only' 400 - 450 HP. If I can get away with the stock CR then that'd be handy.
However, being new to the 1uz I was wondering if there's a view on the best set up to deliver 400 - 450 reliable, street-driven HP?
Would an Eaton M90 be too small or highly stressed? If I use an M112 will I need to lower the CR? What about injector sizing? What are the stock ones good for? Will the stock AFM handle the increased flow rates etc? If not, is there a commonly switched-to unit? I reckon I'll probably need an aftermarket ECU, and if using a supercharger probably won't need cams / head work.
Then again, if I target, say, 350 - 400HP instead can I get away with the stock ECU / injectors / CR etc more readily? I'd happily settle for a bit less output if it means significantly less time and expense in engine prep.
Also, briefly, transmission-wise, I had thought a Supra R154 5 speed manual would be the way to go (as per advice here), however, I'm also toying with an RB25 Skyline unit as the R154 shifter is seemingly placed quite a bit too far forward when transplanted into the Nissan S13 shell.
I've read that the Toyota W58 manual trans comes with a variety of shifter linkage lengths. This might be handy for shifter placement, but I wonder if there's a view on the suitability of this lesser spec unit as compared to the R154?
Views much appreciated.
Thanks,
Ewen
I've spent a good bit of time digging through the information in this (excellent) site, and have picked up lots of good info. However, I'm wondering if folk might have any views on the specific project I'm looking at. Sometimes it's difficult to decide on 'the one best solution' when reading across various articles and posts. Here's what I'm up to:
I'm transplanting an early LS400 1uz-fe into an S13 Nissan 180SX (suspension, brakes etc will be properly sorted for the new set up). I'd like about 400 - 450 flywheel HP allied to equivalent levels of useable torque.
I've never been a fan of turbod power delivery, preferring the linear / precisely controllable delivery of a supercharged or traditionally tuned N/A set up. Thus, I'm keen to go down either of those routes.
An easy way I'd reckoned of getting there would be to use an Eaton M112 supercharger. I had thought I'd need to rebuild the engine with a lower CR, but from what I read this might not be necessary if targetting 'only' 400 - 450 HP. If I can get away with the stock CR then that'd be handy.
However, being new to the 1uz I was wondering if there's a view on the best set up to deliver 400 - 450 reliable, street-driven HP?
Would an Eaton M90 be too small or highly stressed? If I use an M112 will I need to lower the CR? What about injector sizing? What are the stock ones good for? Will the stock AFM handle the increased flow rates etc? If not, is there a commonly switched-to unit? I reckon I'll probably need an aftermarket ECU, and if using a supercharger probably won't need cams / head work.
Then again, if I target, say, 350 - 400HP instead can I get away with the stock ECU / injectors / CR etc more readily? I'd happily settle for a bit less output if it means significantly less time and expense in engine prep.
Also, briefly, transmission-wise, I had thought a Supra R154 5 speed manual would be the way to go (as per advice here), however, I'm also toying with an RB25 Skyline unit as the R154 shifter is seemingly placed quite a bit too far forward when transplanted into the Nissan S13 shell.
I've read that the Toyota W58 manual trans comes with a variety of shifter linkage lengths. This might be handy for shifter placement, but I wonder if there's a view on the suitability of this lesser spec unit as compared to the R154?
Views much appreciated.
Thanks,
Ewen